* hamming_code.py: Reduce McCabe code complexity

As discussed in TheAlgorithms#2128

* fixup! Format Python code with psf/black push

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* Binary search tree using recursion (#1839)

* Binary search tree using recursion

* updating DIRECTORY.md

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* Update README.md (#1842)

* CONTRIBUTING.md: Fix comments about the black formatter (#1841)

* CONTRIBUTING.md: Fix comments about the black formatter

Fixes #1840

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

* Update FUNDING.yml (#1829)

* Update FUNDING.yml

* fixup! Format Python code with psf/black push

* Update FUNDING.yml

* updating DIRECTORY.md

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Co-authored-by: Anup Kumar Panwar <1anuppanwar@gmail.com>

* Update FUNDING.yml

* Added new Algorithm to find middle element of Linked List (#1822)

* Added new Algorithm to find middle element of Linked List

* Rename MiddleElementOfLinkedList.py to middle_element_of_linked_list.py

* changed "middle_element_of_linked_list.py" algorithm for taking input

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Update middle_element_of_linked_list.py

* Whack the trailing whitespace

Co-authored-by: Christian Clauss <cclauss@me.com>

* README.md: sumab() --> sum_ab() for consistancy (#1855)

* README.md: sumab() --> sum_ab() for consistancy  

consistency

* fixup! Format Python code with psf/black push

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* added add algorithm (#1856)

* added add algorithm

* Update and rename check/add.py to math/add.py

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* Test the exception conditions (#1853)

* Text exception conditions

These are ValueErrors, not AttributeErrors.

* fixup! Format Python code with psf/black push

* Update perceptron.py

* Update perceptron.py

* Update perceptron.py

* Revert the test

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* Fix some typos in random forest classifier (#1858)

* Update year in LICENSE.md (#1848)

* Rename math/add.py to maths/add.py (#1857)

* Rename math/add.py to maths/add.py

* fixup! Format Python code with psf/black push

* Fix sum to add

* updating DIRECTORY.md

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* Update g_topological_sort.py (#1873)

* Create gaussian_naive_bayes.py (#1861)

* Create Gaussian_Naive_Bayes.py

Added Gaussian Naive Bayes algorithm in the module machine learning

* Rename Gaussian_Naive_Bayes.py to gaussian_naive_bayes.py

* requirements.txt: pip install xgboost

Co-authored-by: Christian Clauss <cclauss@me.com>

* CONTRIBUTING.md: What is an Algorithm? (#1885)

* CONTRIBUTING.md: What is an Algorithm?

We are seeing too many _how-to examples_ for using existing Python packages so we should define what we want algorithm contributions to be.

* updating DIRECTORY.md

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* Update random_forest_regressor.py (#1880)

* Update CONTRIBUTING.md (#1886)

* Update abbreviation.py (#1887)

* Initialize set with source in DFS (#1872)

* Update dfs.py

* Add type hints, rearrange doc-strings and comments

* fixup! Format Python code with psf/black push

* dfs -> depth_first_search

Co-Authored-By: Christian Clauss <cclauss@me.com>

* dfs -> depth_first_search

* Add doctest for DFS

* fixup! Format Python code with psf/black push

* Rename dfs.py to depth_first_search_dictionary.py

* updating DIRECTORY.md

* Rename depth_first_search_dictionary.py to depth_first_search_dfs.py

* updating DIRECTORY.md

* Rename depth_first_search.py to depth_first_search_2.py

* updating DIRECTORY.md

* Rename depth_first_search_dfs.py to depth_first_search.py

* updating DIRECTORY.md

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* Update breadth_first_search.py (#1869)

* Create is_palindrome.py (#1754)

* Create is_palindrome.py

* Update is_palindrome.py

* Update is_palindrome.py

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* Create Python/bit_manipulation/README.md (#1897)

* Create Python/bit_manipulation/README.md

To open up a new area of algorithms...

@Shrutikabansal I hope that you will contribute some of your work here.

* updating DIRECTORY.md

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* fix: space count in strings/word_occurrence.py (#1896)

* fix: space count in strings/word_occurrence.py

* Update strings/word_occurrence.py

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* Update strings/word_occurrence.py

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* Update strings/word_occurrence.py

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* Update word_occurrence.py

Seems like, there is no need o `occurrence.pop('', None)`

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* Add cellular_automata directory (#1902)

Related to https://github.com/TheAlgorithms/Python/issues/1613#issuecomment-618175224 @8Dion8 Your review please.  Once this land, this directory would be a great place for you to add your work.

* Update linear_search.py (#1906)

* Fix typo in Project Euler sol1.py (#1875)

* Added sepia tone (#1877)

* Add sepia tone

* Add unit test

* technic --> technique

* Update digital_image_processing/sepia.py

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* Update digital_image_processing/sepia.py

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* Fixed errors after commit changes

* Fixed errors

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* Create one_dimensional.py (#1905)

* Create one_dimensional.py

* Update cellular_automata/one_dimensional.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update cellular_automata/one_dimensional.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update one_dimensional.py

Moved import to the top so that the type Image gets recognized

* Update one_dimensional.py

* Update cellular_automata/one_dimensional.py

* Update cellular_automata/one_dimensional.py

* Update one_dimensional.py

* Update one_dimensional.py

* Update one_dimensional.py

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* Blacken one_dimensional.py (#1911)

* Blacken one_dimensional.py

* updating DIRECTORY.md

* Travis CI: Upgrade to Ubuntu 20.04 LTS Focal

Ubuntu 20.04 LTS (Focal Fossa) https://releases.ubuntu.com/focal

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* Added A1Z26 Cipher (#1914)

* A1Z26 Cipher

* A1Z26 Cipher

* Added type hints

* Added Doctests

* removed tabs, spaces instead

* corrected doctest

* corrected doctest

* info URLs added

* Condensed decode to one line

* Condensed encode function to a single line

* Nice one!

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added Burkes dithering algorithm. (#1916)

* Added Burkes dithering algorithm

* Added unit tests for burkes algorithm

* Fix burkes algorithm

* Added some additional information

* Fixed CI tests

* Update digital_image_processing/dithering/burkes.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update digital_image_processing/dithering/burkes.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update digital_image_processing/dithering/burkes.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Propogate the += and add a doctest

* Fix doctest

* @staticmethod --> @ classmethod to ease testing

* def test_burkes(file_path):

* Fix for mypy checks

* Fix variable order in get_greyscale

* Fix get_greyscale method

* Fix get_greyscale method

* 3.753

Co-authored-by: Christian Clauss <cclauss@me.com>

* Fix invalid escape sequence in binary_search_tree.py (#1920)

* Fix invalid escape sequence in binary_search_tree.py

data_structures/binary_tree/binary_search_tree.py:156
  /home/travis/build/TheAlgorithms/Python/data_structures/binary_tree/binary_search_tree.py:156: DeprecationWarning: invalid escape sequence \

* fixup! Format Python code with psf/black push

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* Graph coloring (#1921)

* add skeleton code

* add doctests

* add mainc function pseudo code and tests (ToDo: write Implementation)

* typo fixes

* implement algorithm

* add type checking

* add wikipedia link

* typo fix

* update range syntax

Co-authored-by: Christian Clauss <cclauss@me.com>

* change indexed iteration checking to any()

Co-authored-by: Christian Clauss <cclauss@me.com>

* fix: swap import and documentation sections

* fix: change return none to return empty list

* remove unnecessary import (Union)

* change: remove returning boolean indicating problem was solved or not

* remove unnecessary import (Tuple)

Co-authored-by: Christian Clauss <cclauss@me.com>

* Add shortest path by BFS (#1870)

* Create breadth_first_search_shortest_path.py

* updating DIRECTORY.md

* Reduce side effect of `shortest_path`

For the sake of future testing and documentation -

* fixup! Format Python code with psf/black push

* Fix typo `separately`

* Change to get() from dictionary

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Move graph to the top

* fixup! Format Python code with psf/black push

* Add doctest for shortest path

* Add doctest for BFS

* fixup! Format Python code with psf/black push

* Add typings for breadth_first_search_shortest_path

* fixup! Format Python code with psf/black push

* Remove assert from doctests

* Add blank line to doctest

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Co-authored-by: John Law <johnlaw.po@gmail.com>
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Co-authored-by: John Law <johnlaw@linux.com>

* Changed the deprecated `np.matrix` to `np.ndarray` (#1923)

* Wrap lines that go beyond GitHub Editor (#1925)

* Wrap lines that go beyond GiHub Editor

* flake8 --count --select=E501 --max-line-length=127

* updating DIRECTORY.md

* Update strassen_matrix_multiplication.py

* fixup! Format Python code with psf/black push

* Update decision_tree.py

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* Update stale comment (#1924)

* Update close comment

* Update stale.yml

* Multiline strings in yaml files

https://yaml-multiline.info/

Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

* Hamiltonian Cycle (#1930)

* add skeleton code

* add doctests

* add tests for util function + implement wrapper

* full implementation

* add ability to add starting verex for algorithm

* add static type checking

* add doc tests to validation method

* bug fix: doctests expected failing

* Update hamiltonian_cycle.py

* Update hamiltonian_cycle.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* support_vector_machines.py increase error tolerance to suppress convergence warnings (#1929)

* Update support_vector_machines.py

* Update support_vector_machines.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* enhanced segment tree implementation and more pythonic (#1715)

* enhanced segment tree implementation and more pythonic

enhanced segment tree implementation and more pythonic

* add doctests for segment tree

* add type annotations

* unified processing sum min max segment tre

* delete source encoding in segment tree

* use a generator function instead of returning

* add doctests for methods

* add doctests for methods

* add doctests

* fix doctest

* fix doctest

* fix doctest

* fix function parameter and fix determine conditions

* Check if a item exist in stack or not (#1931)

* Check if a item exist in stack or not

* implemented __contains__ method in stack

* made changes in __contains__

* added method for checking armstrong number (#1936)

* added method for checking armstrong number

* Update comment

Co-authored-by: Christian Clauss <cclauss@me.com>

* Solution for Euler Problem 26 (#1939)

* Solution for Euler Problem 26

* Update project_euler/problem_26/sol1.py

typo error fix.

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* Update project_euler/problem_26/sol1.py

typo error fix

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update project_euler/problem_26/sol1.py

ok to remove, this comes from Pycharm automatically when docstring is added.

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* Update project_euler/problem_26/sol1.py

ok to remove.

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* Update project_euler/problem_26/sol1.py

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* Update project_euler/problem_26/sol1.py

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* Update project_euler/problem_26/sol1.py

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* now_divide = now_divide * 10 % divide_by_number

Co-authored-by: Christian Clauss <cclauss@me.com>

* Fix psf/black issues than fail the build (#1935)

* Fix psf/black issues than fail the build

* fixup! Format Python code with psf/black push

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* Delete FUNDING.yml

* Create sol2.py (#1876)

* Create sol2.py

* updating DIRECTORY.md

* Update DIRECTORY.md

* updating DIRECTORY.md

* Update sol2.py

* Update DIRECTORY.md

* updating DIRECTORY.md

* Improve docstrings

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Co-authored-by: vinayak <itssvinayak@gmail.com>
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* Deal with maps (#1945)

* Deal with maps

Try with the search term "pizza" to see why this was done in #1932

* fixup! Format Python code with psf/black push

* Update armstrong_numbers.py

* updating DIRECTORY.md

* Update crawl_google_results.py

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* change method name from front to get_front (#1943)

Co-authored-by: “Vipul <“vipulrai8891@gmail.com”>

* Added new algorithm: cracking caesar cipher with the chi-squared test (#1950)

* added decrypt_caesar_with_chi_squared.py and ran all checks

* Updated default parameters

Removed mistake with mutable default arguments

Co-authored-by: Christian Clauss <cclauss@me.com>

* Updated handling for optional arguments

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* Changed return statement to tuple

Made function return a tuple instead of a list

* Added more doctests

* Fixed spelling mistakes

* black . - reformatted decrypt_caesar_with_chi_squared.py

* Updated if statements to fit the updated code

* Minimized amount of lines in the code.

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* Added Lstm example for stock predection (#1908)

* Added Lstm example for stock predection

* Changes after review

* changes after build failed

* Add Kiera’s to requirements.txt

* requirements.txt: Add keras and tensorflow

* psf/black

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added Shortest Job First Algorithm (#1957)

* Added Shortest Job First Algorithm

It is in IPYNB format but the dataframes are really looking good.
Please, take a look.

* Delete Shortest_Job_First_Algorithm.ipynb

* Added Shortest Job First Algorithm

* Update Shortest_Job_First Algorithm.py

* Update Shortest_Job_First Algorithm.py

* Update Shortest_Job_first Algorithm

* Added Shortest_Job_First Algorithm

* Added Shortest Job First Algorithm

* Update shortest_job_first_algorithm.py

* Format code with psf/black

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* Add sleep-sort (#1867)

* added sleepsort

Adding sleepsort

* Add doctest and typing for sleepsort

* Use self-descriptive variable name

* Update sleepsort.py

* Update sorts/sleepsort.py

Co-authored-by: John Law <johnlaw.po@gmail.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

* Add graphs/frequent_pattern_graph_miner.py (#1866)

* Add files via upload

* Update graphs/frequent_pattern_graph_miner.py

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* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update graphs/frequent_pattern_graph_miner.py

Co-Authored-By: Christian Clauss <cclauss@me.com>

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Update frequent_pattern_graph_miner.py

* Whitespace changes

* Format with psf/black

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added Nearest neighbour algorithm (#1934)

* Upgrades to caesar_cipher.py (#1958)

* Added more flexibility to functions, decreased amount of repeating code

* Added docstrings

* Updated input functions

* Added doctests

* removed test piece of code

* black .

* Updated caesar cipher standard alphabet to fit python 3.8

* Update and rename sleepsort.py to sleep_sort.py

* Or 4

Co-authored-by: Christian Clauss <cclauss@me.com>

* Travis CI: lint for useless backslashes (#1961)

* Travis CI: lint for useless backslashes

* updating DIRECTORY.md

* flake8  --max-complexity=25

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* Kadanes_algorithm (#1959)

* Add files via upload

* Update Kadane's_algorithm.py

* Update and rename Kadane's_algorithm.py to kadanes_algorithm.py

* Update kadanes_algorithm.py

* Update kadanes_algorithm.py

* Update kadanes_algorithm.py

* Update kadanes_algorithm.py

* Update kadanes_algorithm.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added A* algorithm (#1913)

* a* algorithm

* changes after build error

* intent changes

* fix after review

* ImportMissmatchError

* Build failed fix

* doctest changes

* doctest changes

* Travis CI: Strict flake8 (#1962)

* Travis CI: Strict flake8

Turn the screws all the way down.

* updating DIRECTORY.md

* Switch from flake8 --select to --ignore

* Quotes

* IGNORE=E123,E203,E265,E266,E302,E401,E402,E712,E731,E741,E743,F811,F841,W291,W293,W503

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* Fix astar (#1966)

* Fix astar

Single character variable names are old school.

* fixup! Format Python code with psf/black push

* Tuple

* updating DIRECTORY.md

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* Add type hints to max_heap.py (#1960)

* Max heap implementation

* Update max_heap.py

* Update max_heap.py

* Update max_heap.py

* __len__ method added

* Update max_heap.py

Co-authored-by: halilpython <65048618+halilpython@users.noreply.github.com>
Co-authored-by: Christian Clauss <cclauss@me.com>

* Iterative merge sort implementation (#1972)

* Added Iterative merge sort

* Added iterative merge sorts

* Update changes

* Add the ability to sort strings

Co-authored-by: Christian Clauss <cclauss@me.com>

* The new version of flake8 is linting f-strings (#1976)

* The new version of flake8 is linting f-strings

* updating DIRECTORY.md

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* Update linear_search.py (#1974)

* Update linear_search.py

Comment modified in line 17 as Sorting not required in Linear Search

* Update linear_search.py

Comment modified in line 17

* improved prime number generator to check only up to sqrt(n) instead of n (#1984)

* improved prime number generator to check only up to sqrt(n) instead of n

* added old version as slow_primes() and named new, faster version primes()

* fixed docstring in slow_primes

* Add a timeit benchmark

* Update prime_numbers.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added file aliquot_sum.py (#1985)

* Added file aliquot_sum.py containing a function to find theo

* Added parameter type info to aliquot_sum.py

* Update maths/aliquot_sum.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update maths/aliquot_sum.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Updated code to raise ValueErrors if input is bad

* Fixed logical operators

* Removed unnecessary import

* Updated aliquot_sum.py

* fixed formatting

* fixed documentation

Co-authored-by: Christian Clauss <cclauss@me.com>

* actions/setup-python@v2 (#1986)

* actions/setup-python@v2

* fixup! Format Python code with psf/black push

* Update autoblack.yml

* updating DIRECTORY.md

* Update codespell.yml

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* Added strand sort (#1982)

* Added strand sort

* Review changes

* Remove boilerplate code

* Fixed flake error: E252

* Added missing return type hint

* Add tests and type hints to hill cipher (#1991)

* Added tests and type hints to hill cipher

* Remove extra >>>

* import doctest

Co-authored-by: John Law <johnlaw.po@gmail.com>

* hill_cipher.py: gcd() -> greatest_common_divisor() (#1997)

* hill_cipher.py: gcd() -> greatest_common_divisor()

* fixup! Format Python code with psf/black push

* import string

* updating DIRECTORY.md

* Change matrix to array

Add more tests

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Co-authored-by: John Law <johnlaw.po@gmail.com>

* added __len__ function (#1812)

* added __len__ function

Added a function to count number of nodes in linked list

* Updated __len__ method

used snake_case instead of camel case

* Add tests to __len__()

Co-authored-by: Christian Clauss <cclauss@me.com>

* change doctest line (#2007)

* change doctest line

import doctest is not relevant with algorithms. move it under main section.

* from doctest import testmod

Co-authored-by: Christian Clauss <cclauss@me.com>

* Pi digit extraction algorithm (#1996)

* added pi digit extraction formula

* updating DIRECTORY.md

* fixed typo in a comment

* updated bbp_formula.py

* Update maths/bbp_formula.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update maths/bbp_formula.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Update bbp_formula.py

* Update and rename bbp_formula.py to bailey_borwein_plouffe.py

* updating DIRECTORY.md

* calculate

* "".join(bailey_borwein_plouffe(i) for i in range(1, 12))

* Update bailey_borwein_plouffe.py

* Update bailey_borwein_plouffe.py

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* consists of area of various geometrical shapes (#2002)

* consists of area of various geometrical shapes

In this program it consists of various area calculation of different geometrical shapes such as (square,rectangle) and many other shapes.

* print(f'Rectangle: {area_rectangle(10, 20)=}')

* Update area.py

* Areas of various geometric shapes:

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* Precision must be a nonnegative integer (#2013)

* Precision must be a nonnegative integer

* fixup! Format Python code with psf/black push

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* refactor: move import pytest line of blockchain algs under "main" section. (#2012)

* change doctest line

import doctest is not relevant with algorithms. move it under main section.

* from doctest import testmod

* refactor: move doctest under "main" section

* Update diophantine_equation.py

* Update modular_division.py

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* Easter date gauss algorithm (#2010)

* Added gauss easter algorithm

* Fixes in easter algorithm

* Commit suggestions

* singly_linked_list.py: psf/black (#2008)

* singly_linked_list.py: psf/black

* updating DIRECTORY.md

* Update singly_linked_list.py

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* Update fast_fibonacci.py (#1889)

* Update fast_fibonacci.py

* Update fast_fibonacci.py

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* Update atbash cipher (doc, doctest, performance) (#2017)

* Update atbash

* Add benchmark() to quantify the performance improvement

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* Graphs : Bidirectional A* (#2015)

* implement bidirectional astar

* add type hints

* add wikipedia url

* format with black

* changes from review

* Graphs : Greedy Best First (#2018)

* implement greedy best first

* implement Greedy Best First Search

* review changes

* add doctests

* >>> gbf.search()  # doctest: +NORMALIZE_WHITESPACE

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* Fixes in Bidirectional A* (#2020)

* implement bidirectional astar

* add type hints

* add wikipedia url

* format with black

* changes from review

* fix collision check

* Add testmod()

* # doctest: +NORMALIZE_WHITESPACE

* Codespell: euclidean

* Codespell: coordinates

* Codespell: traversal

* Codespell: remaining

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* Tighten up psf/black and flake8 (#2024)

* Tighten up psf/black and flake8

* Fix some tests

* Fix some E741

* Fix some E741

* updating DIRECTORY.md

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* Added bead sort (#2022)

* Added bead sort

* Commit suggestion

* Added checking before sort

* Bead sort only works for sequences of nonegative integers

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* Update is_palindrome.py (#2025)

* Update is_palindrome.py

* Update is_palindrome.py

* Reuse s

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* Merge sort Update variable names (#2032)

* Update Merge sort variable names

* Update mergesort.py

* Update mergesort.py

* black

* Update mergesort.py

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* .travis.yml: Revert to using autoblack (#2033)

* .travis.yml: Revert to using autoblack

Our autoblack GitHub Action will get us to black compliance without forcing each contributor to learn about, install, and use psf/black on every pull request.

* updating DIRECTORY.md

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* Euclidean recursive method + doctests + type hints (#1999)

* Recursive euclidean algorithm + doctests and type hints

* Fix doctests in recursive method

* Added commit suggestions

* added Boruvka's MST algorithm (#2026)

* added Boruvka's MST algorithm

* Add files via upload

* fixup! Format Python code with psf/black push

* Updated Boruvka with doctest

* updating DIRECTORY.md

* Update minimum_spanning_tree_boruvka.py

* No blank line in doctest

* <BLANKLINE>

* Avoid mutable default values

https://docs.python-guide.org/writing/gotchas/

* Update minimum_spanning_tree_boruvka.py

* Avoid mutable default values

* fixup! Format Python code with psf/black push

* Update minimum_spanning_tree_boruvka.py

* Update minimum_spanning_tree_boruvka.py

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* Enhance shell sort syntax (#2035)

* Created weatherforecast.py (#2037)

* Created weatherforecast.py

Added weatherforecast.py to retrieve weather information of a location and return dictionary values.

* Update weatherforecast.py

* Update and rename weatherforecast.py to current_weather.py

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* current_weather, weather_forecast, weather_onecall (#2048)

* current_weather, weather_forecast, weather_onecall

* updating DIRECTORY.md

* weather_forecast("Kolkata, India")

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* Jaro winkler (#2041)

* Added jaro_winkler first version

* Added doctests

* Fix flake warnings

* Refactor

* Fixes bug in jaro winkler implementation

* Commit suggestions

* Missing comming suggestions

* Remove unused math module

* Import doctest

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* circular_linked_list: Add more len() tests (#2051)

* circular_linked_list: Add more len() tests

* fixup! Format Python code with psf/black push

* prepend()

* updating DIRECTORY.md

* Fix decrementation of self.length

* Add empty list tests

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* data_structures/linked_list: Add __len__() function and tests (#2047)

* Update __init__.py

please add a function to get length of linked list

* Update __init__.py

* Update doubly_linked_list.py

all size function lo doubly linked list class

* prime number _better method

* comments

* Updated init.py 2

made it more pythonic

* updated length function

* commnet in linked_list construtor

* Update data_structures/linked_list/__init__.py

accepecting changes

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* Update data_structures/linked_list/__init__.py

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* Update __init__.py

* Revert changes to doubly_linked_list.py

* Revert changes to prime_check.py

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* Naive string doctests + typehints (#2054)

* Added doctests

* Added __main__

* Commit suggestion

* Undo changes to keep only doctests and typehints

* Reundo function name with params

* Update naive_string_search.py

* Update naive_string_search.py

* Update naive_string_search.py

* Update naive_string_search.py

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* Create number_of_digits.py (#1975)

* Create number_of_digits.py

A python program to find the number of digits in a number.

* Update number_of_digits.py

* Update number_of_digits.py

* Add #1976 to get Travis CI to pass

#1976

* Add type hints as discussed in CONTRIBUTING.md

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* Doctests + typehints in cocktail shaker sort (#2061)

* Doctests in cocktail shaker sort

* import doctest

* print(f"{cocktail_shaker_sort(unsorted) = }")

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* conversions/decimal_to_binary.py: Add type hints (#2001)

* A .py file to covert a base to any new base(2-18)

* Update base_changer.py

* Added type-hints.

* Delete base_changer.py

* Update build_directory_md.py (#2066)

Propagate argument `top_dir` to good_file_paths.
Previously this argument did not get passed to the helper function when calling print_directory_md.

* create sum_of_digits.py (#2065)

* create sum_of_digits.py

create sum_of_digits.py to find the sum of digits of a number
digit_sum(12345) ---> 15
digit_sum(12345) ---> 10

* Update sum_of_digits.py

* Update maths/sum_of_digits.py

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* Update maths/sum_of_digits.py

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* Update sum_of_digits.py

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* Harris corner detection (#2064)

* Added Lstm example for stock predection

* Changes after review

* changes after build failed

* Add Kiera’s to requirements.txt

* requirements.txt: Add keras and tensorflow

* psf/black

* haris corner detection

* fixup! Format Python code with psf/black push

* changes after review

* changes after review

* fixup! Format Python code with psf/black push

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* Refactor cycle_sort (#2072)

* Refactor cycle_sort

* Undo changes to keep only doctests

* Remove boilerplate comments and unused variables (#2073)

* Errors notifications under pull requests (#2081)

* Added error comments under pull requests

* updating DIRECTORY.md

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* Create-Add files to greedy_method directory (#2082)

* Add Greedy Method Approach

* Update Filename

* Update Variable and Links

* Fixed flake8 bugs

* Update unittest filename

* Update unittest filename

* Final unittest filename update

* Pythonic Code formatting

* flake8 fixes

* lowercase function name

* Add zip function

* Add zip function

* params lowercase

* Travis CI fixes

* Update and rename knapsack_problem.py to knapsack.py

* Update test_knapsack.py

* Fix bugs

* Rename knapsack.py to greedy_knapsack.py

* Update test_knapsack.py

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* Added travis notifications only on fail (#2091)

* Added travis notifications only on fail

* fixup! Format Python code with psf/black push

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* Added Readme for computer vision (#2075)

* Create README.md

* updating DIRECTORY.md

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* Refactor remove duplicates to more pythonic (#2093)

* Refactor strings/remove_duplicate to more pythonic

* updating DIRECTORY.md

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* calc_profit always returns an int (#2090)

* calc_profit always returns an int

* fixup! Format Python code with psf/black push

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* fix fetch_github_info __main__ bug (#2080)

* fix fetch_github_info __main__ bug

* Algorithms should not print

* Update fetch_github_info.py

* Update fetch_github_info.py

Co-authored-by: Christian Clauss <cclauss@me.com>
Co-authored-by: John Law <johnlaw.po@gmail.com>

* Added function to convert from decimal to another base (#2087)

* Added function to convert from decimal to another base

* Update conversions/decimal_to_any.py

Changed type() to isinstance()

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* Update conversions/decimal_to_any.py

Changed to base in (0, 1)

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* Update conversions/decimal_to_any.py

Updated to div not in (0, 1)

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* Update conversions/decimal_to_any.py

Updated to make condition clearer

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* Update conversions/decimal_to_any.py

Using divmod() instead of % operator

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* Update conversions/decimal_to_any.py

Improved readability on a docstring test

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* Update conversions/decimal_to_any.py

Changed use of type() to isinstance()

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* Update conversions/decimal_to_any.py

Changed from use of type() to isinstance()

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* Made changes and improved function

* Update conversions/decimal_to_any.py

Added space to docstring test

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* Changed action for bad input

* Added support for conversions up to base 36 (#2087)

* Added support for conversions up to base 36 and renamed HEXADECIMAL dict (#2087)

* Fixed whitespace issue (#2087)

* Fixed issue with line length (#2087)

* Fixed issue with conversions past base-10 failing (#2087)

* Added more robust testing (#2087)

Co-authored-by: Christian Clauss <cclauss@me.com>

* created perfect_cube.py (#2076)

* created perfect_cube.py

To find whether a number is a perfect cube or not.

* Update perfect_cube.py

* Update perfect_cube.py

* Update perfect_cube.py

* Add Z-function algorithm implementation (#2067)

* Add Z-function algorithm implementation

* Spelling correction

* Reference url correction

* Add additional function as an example of z-function usage, change docstrings for functions

* Fix flake8 errors

* Update z_function.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* implement sdbm hash algorithm (#2094)

* implement sdbm hash algorithm

* fix bug: styling

* fix styling for decimal_to_any

* Fix syntax for flake8 passing (#2096)

* Fix syntax for flake8 passing

* fixup! Format Python code with psf/black push

* # fmt: off / # fmt: on

* updating DIRECTORY.md

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* Fix indentation (#2097)

* Hash adler32 (#2111)

* implement hash

* fix indentation

* Create natural_language_processing (#2116)

* Create natural_language_processing

Closes #2115

* updating DIRECTORY.md

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* implement rat in maze algorithm. (#2106)

* implement rat in maze algorithm.

* style changes

* fix trailing whitespace

* add test, fix style

* fix style

* method change

* minor changes

* style changes

* return solved

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* Fix line break after binary operator (#2119)

* Fix line break after binary operator

* fixup! Format Python code with psf/black push

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* Add pytest init file to define custom mark mat_ops (#2120)

Fixes #1917.

* Set the Python file maximum line length to 88 characters (#2122)

* flake8 --max-line-length=88

* fixup! Format Python code with psf/black push

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* Fix long line, tests (#2123)

* Fix long line

* updating DIRECTORY.md

* Add doctest

* ...

* ...

* Update tabu_search.py

* space

* Fix doctest

    >>> find_neighborhood(['a','c','b','d','e','a'])  # doctest: +NORMALIZE_WHITESPACE
    [['a','e','b','d','c','a',90], [['a','c','d','b','e','a',90],
     ['a','d','b','c','e','a',93], ['a','c','b','e','d','a',102],
     ['a','c','e','d','b','a',113], ['a','b','c','d','e','a',93]]

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* Count (#2084)

* Add files via upload

* Update and rename count_islands.py to count_islands_in_matrix.py

* Update matrix/count_islands_in_matrix.py

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* Update matrix/count_islands_in_matrix.py

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* Update matrix/count_islands_in_matrix.py

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* Reformat count islands.py

* Indent Python code with 4 spaces, not tabs

* Update count_islands_in_matrix.py

* Add type hints for return values

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* CONTRIBUTING.md: Update flake8 command (#2124)

* CONTRIBUTING.md: Update flake8 command

* updating DIRECTORY.md

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* Graphs : Bidirectional Breadth-First Search (#2057)

* implement bidirectional breadth first

* remove useless import

* remove trailing whitespaces

* implementation of entropy algorithm. (#2110)

* implementation of entropy algorithm.

* add tests, fix requested changes

* open_file() --> analyze_text()

* Create bidirectional_breadth_first_search.py

* # type: ignore

Co-authored-by: Christian Clauss <cclauss@me.com>

* Hash djb2 (#2098)

* implement hash

* fix flake8 error

* Update hashes/djb2.py

* Update hashes/djb2.py

* Long lines

* def djb2(s: str) -> int:

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* Blacken our code (#2125)

* Blacken

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* Create change_brightness.py (#2126)

* Create change_brightness.py

* Update change_brightness.py

* Update change_brightness.py

* Update change_brightness.py

* Update change_brightness.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added doctests to bucket sort (#2079)

* Added doctests to bucket sort

* Missing typehint

* Wrap long lines

* updating DIRECTORY.md

* Update bucket_sort.py

* updating DIRECTORY.md

* Update bucket_sort.py

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* Added maximum non-adjacent sum (#2130)

* Added maximum non-adjacent sum

* Bugfix: flake8 test

* Implemented changes (broke tuple unpacking into 2 lines due to flake8 tests)

* Implemented changes v2.0

* Update max_non_adjacent_sum.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Implement connected components algorithm for graphs (#2113)

* Implement connected components algorithm for graphs

* fixup! Format Python code with psf/black push

* Add parameters and return values annotations with Python type hints

* updating DIRECTORY.md

* Add doctests and typehints

* Remove unnecessary comments, change variable names

* fixup! Format Python code with psf/black push

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* Strongly connected components (#2114)

* Implement strongly connected components for graph algorithms

* fixup! Format Python code with psf/black push

* Delete trailing whitespace

* updating DIRECTORY.md

* Add doctests and typehints

* Remove unnecessary comments, change variable names

* fixup! Format Python code with psf/black push

* Change undefined variable's name

* Apply suggestions from code review

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* Implement prefix function, knuth-morris-pratt another usage (#2099)

* Implement prefix function, knuth-morris-pratt another usage

* fixup! Format Python code with psf/black push

* Fix style

* updating DIRECTORY.md

* Update prefix_function.py

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* Add lempel ziv compression (#2107)

* Added lempel-ziv compression algorithm implementation

* Added lempel-ziv decompression algorithm implementation

* Reformatted lempel-ziv compress/decompress files using black

* Added type hints and some other modifications (Doctests coming up)

* Shortened several lines to comply with the standards

* Added (Open) Knight Tour Algorithm (#2132)

* Added (Open) Knight Tour Algorithm

* Implemented Suggestions

* add visualization of k means clustering as excel format (#2104)

* add visualization of kmneas clust as excel format

* style changes

* style changes

* Add doctest and typehint!

* style change

* Update machine_learning/k_means_clust.py

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* Update machine_learning/k_means_clust.py

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* Euler problem 551 sol 1: Reduce McCabe code complexity (#2141)

* Euler problem 551 sol 1: Reduce McCabe code complexity

As discussed in #2128

* fixup! Format Python code with psf/black push

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* hamming_code.py: Reduce McCabe code complexity (#2140)

* hamming_code.py: Reduce McCabe code complexity

As discussed in #2128

* fixup! Format Python code with psf/black push

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* Added Markov Chain (#2146)

* Added Markov Chain

* Implemented suggestions

* Add doctests to radix_sort() (#2148)

* Add doctests to radix_sort()

* fixup! Format Python code with psf/black push

* Update radix_sort.py

* updating DIRECTORY.md

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* Added doctests to OddEvenTraposition (#2152)

* Added doctests

* Change __main__ content

* Typehints + refactor (#2154)

* Update avl_tree.py (#2145)

* Update avl_tree.py

it's true definition of AVL tree,change  left and right rotation,and add avl_tree doctest

* Update avl_tree.py

* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update data_structures/binary_tree/avl_tree.py

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* Update avl_tree.py

update some function name and update doctest

* Update avl_tree.py

change some code format to fit flake8 review

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* NLP Word Frequency Algorithms (#2142)

* NLP Word Frequency Algorithms

* Added type hints and Wikipedia link to tf-idf

* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Fix line length for flake8

* Fix line length for flake8 V2

* Add line escapes and change int to float

* Corrected doctests

* Fix for TravisCI

* Fix for TravisCI V2

* Tests passing locally

* Tests passing locally

* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Update machine_learning/word_frequency_functions.py

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* Add doctest examples and clean up docstrings

Co-authored-by: Christian Clauss <cclauss@me.com>

* Added LRU Cache (#2138)

* Added LRU Cache

* Optimized the program

* Added Cache as Decorator + Implemented suggestions

* Implemented suggestions

* Added LFU Cache (#2151)

* Added LFU Cache

* Update lfu_cache.py

* None is returned

* Add type hints

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* project_euler/problem_47/sol1.py (#2150)

* Create __init__.py

* Initial commit

Not sure if this should be formatted differently.  I'm open to ideas!

* Completing testing/updates

Ran code through `black`, `flake8`, and `doctest`.  Added some type hints.

`doctest` is finicky on sets, so I had to sort and reformat as set to pass those tests.

* Update project_euler/problem_47/sol1.py

Nice.

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* Update project_euler/problem_47/sol1.py

Looks good

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* Update project_euler/problem_47/sol1.py

Okay, this should work.  Thank you for the reminder on map(), filter(), reduce().

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* Update project_euler/problem_47/sol1.py

My IDE needs a spellchecker.  Or, lighter comment font.

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* Update project_euler/problem_47/sol1.py

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* Update project_euler/problem_47/sol1.py

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* Update project_euler/problem_47/sol1.py

This means that `results = run(N)` should be updated to `results = run(n)`, correct?

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* Update project_euler/problem_47/sol1.py

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* Update project_euler/problem_47/sol1.py

Looks good!

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* Update project_euler/problem_47/sol1.py

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* Update project_euler/problem_47/sol1.py

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* Update project_euler/problem_47/sol1.py

Works for me! I spent way too much time getting this to pass doctest, so any improvement is welcome.

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* Update sol1.py

Added some suggested changes from the pull request:
* Updated tests outputs in `unique_prime_factors` function.
* Changed `@lru_cache(maxsize=5)` to `@lru_cache(maxsize=None)`
* Removed duplicate `return` line in `equality` function
* Changed `i` to `base` in run function.
* Added some commentary to `run()` function.
* Replaced `group = list(map(lambda x: base + x, [i for i in range(n)]))` with `group = [base + i for i in range(n)]`

* Update sol1.py

* Trailing whitespace

* Update sol1.py

* Update __init__.py

* Update sol1.py

* Update __init__.py

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* Add url and typing hint for BFS (#2156)

* Add typing for bfs

* Add url for BFS

* rename the function

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* Update graphs/bfs.py

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* Change the return value type of bfs

* change the function name.

change all instances of bfs() to breadth_first_search().

* change the function name in annotate

* Add one more blank line.

* Delete one blank line.

* Delete one blank line.

I've read the https://www.flake8rules.com/rules/W391.html, and still don't know how to do it. I've tried using 0 ,1,2 blank lines...

* Update graphs/bfs.py

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* Update graphs/bfs.py

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* Rename bfs.py to breadth_first_search_2.py

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* Only one carriage return (#2155)

* updating DIRECTORY.md

* touch

* fixup! Format Python code with psf/black push

* Update word_frequency_functions.py

* updating DIRECTORY.md

* Update word_frequency_functions.py

* Update lfu_cache.py

* Update sol1.py

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* Added minimum cost path algorithm (#2135)

* Added maximum path sum for matrix (top left to bottom right)

* Changed maximum cost path to minimum cost path + added video explaination

* black fixes and Travis CI fixes (#2160)

* black format

* updating DIRECTORY.md

* fixes

* fixup! Format Python code with psf/black push

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* Add round_robin scheduling algorithm (#2158)

* round_robin and priority cpu scheduling algorithms

* Delete priority_cpu_scheduling.py

* Delete round_robin_algorithm.py

* [add] cpu_scheduling_algorithms

* [add] Round robin cpu scheduling algorithm

* Update scheduling/round_robin_scheduling_algorithm.py

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* Update scheduling/round_robin.py

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* Update scheduling/round_robin_scheduling.py

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* Update scheduling/round_robin_scheduling.py

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* Update scheduling/round_robin.py

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* Round_Robin

* Update round_robin.py

* Update round_robin.py

* Update round_robin.py

* Update round_robin.py

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* Rename shortest_job_first_algorithm.py to shortest_job_first.py (#2164)

* Rename shortest_job_first_algorithm.py to shortest_job_first.py

* updating DIRECTORY.md

* Minor tweek to round_robin.py

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* Update matrix_operation.py (#2159)

* Update matrix_operation.py

* Update matrix_operation.py

* Update matrix_operation.py

* use yapf to format the code

* recover the error check

* add typing hint

* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* add float doctest

* black formated

* Update searching_in_sorted_matrix.py

* recover this file

* f-string, typing hint , doctest

* Update matrix_operation.py

* Update searching_in_sorted_matrix.py

* Update matrix_operation.py

* Update matrix/matrix_operation.py

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* black (#2166)

* black

* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* Update matrix/matrix_operation.py

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* flake8 error fix

* Remove unreachable code

* union

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* double_linear_search algorithm (#2161)

* linear search iterating from both array sides

* Update double_linear_search.py

* Update double_linear_search.py

* added doctests

* updated doctests

* Update double_linear_search.py

* Update double_linear_search.py

* added blank after >>>

* made all the requested changes

* Update double_linear_search.py

* Update double_linear_search.py

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* Gale Shapley Algorithm (#2100)

* Gale Shapley Algorithm

Implementation of a Nobel prize-winning algorithm that determines a stable matching in a bipartite graph.

* Update graphs/gale_shapley_bigraph.py

Co-authored-by: Christian Clauss <cclauss@me.com>

* Fixed some flake8 issues.

* Updated it to donors and recipients

* description changes

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* description changes

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* description changes

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* Edited the line lengths

* Update gale_shapley_bigraph.py

* Update gale_shapley_bigraph.py

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* isort --profile black --recursive . (#2170)

* isort --profile black --recursive .

* Update codespell.yml

* typo: vertices

* typo: Explanation

* typo: Explanation

* Fix typos

* isort --profile black . (#2181)

* updating DIRECTORY.md

* isort --profile black .

* Black after

* updating DIRECTORY.md

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* Numerous fixes to directed_and_undirected_(weighted)_graph.py (#2182)

* Numerous fixes to directed_and_undirected_(weighted)_graph.py

* dict.keys() is almost never need in modern Python

* Add surface area class (#2183)

* add surface area class

* add new line to end of file

* move surface area class into area class

* add missing import

* added pi import

* fix typo

* added blank line

* fixed more import issues

* comment fix

* comment fixes

* enhance the ability of add (#2178)

* enhance the ability of add

* Update matrix_operation.py

* Update matrix_operation.py

* Update matrix_operation.py

* Update matrix/matrix_operation.py

Co-authored-by: Christian Clauss <cclauss@me.com>

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* Fix typo: Adjancent -> Adjacent (#2184)

* Add a missing "genetic algorithm" folder with a basic algorithm inside (#2179)

* Add a basic genetic algorithm

* Update basic_string.py

* Improve comments and readability

* Add url to wikipedia

* Remove newline

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* Sort import

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* Apply suggestions from code review

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* Improve Comments and readability

* Update basic_string.py

* Improve logic and efficiency

* Add doctest

* Update basic_string.py

* Update basic_string.py

* Update basic_string.py

* Apply suggestions from code review

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* Update basic_string.py

* Update basic_string.py

* Update basic_string.py

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Co-authored-by: vinayak <itssvinayak@gmail.com>

* Update decimal_to_binary.py (#2185)

"an Integer" instead of "a Integer"

* N queens math (#2175)

* add new file for another solution to the n queens problem

* Add the code for the algorithm, add comments and add at the top a general explanation

* Update backtracking/n_queens_math.py

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* Update backtracking/n_queens_math.py

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* Update backtracking/n_queens_math.py

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* Update backtracking/n_queens_math.py

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* No newline at the end of the file

* Type hints

* whitespaces fixed

* Fixed whitespaces

* Add type hints

* CodeSpell fixed

* update

* All changes made except changing the board variable to local

* Add doctest

* Update

* Update

* Update

* Update n_queens_math.py

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* sum_of_geometric_progression (#2168)

* Add files via upload

* Rename sum_of_Geometric_Progression.py to sum_of_geometric_progression.py

* Update sum_of_geometric_progression.py

* Update maths/sum_of_geometric_progression.py

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* Update maths/sum_of_geometric_progression.py

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* Update maths/sum_of_geometric_progression.py

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* Update sum_of_geometric_progression.py

* Update sum_of_geometric_progression.py

* Type hints and test for zeros and negative numbers

* Update sum_of_geometric_progression.py

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* Added Normalization and Standardization Algorithms (#2192)

* Added Standardization and Normalization algorithms with built-in stats

* Implement ndigits for rounding

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* added daily horoscope scrapper script (#2167)

* added daily horoscope scrapper

* Update daily horoscope scrapper script

code refactoring, script editing

* Update web_programming/daily_horoscope.py

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* Update basic_graphs.py (#1990)

* Update basic_graphs.py

missing return statement line no:223.

* Update basic_graphs.py

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* Added a binomial distribution formula calculator algorithm (#2197)

* Add files via upload

* Update binomial_distribution.py

* Update maths/binomial_distribution.py

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* Update binomial_distribution.py

* Update maths/binomial_distribution.py

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* Update binomial_distribution.py

* Update binomial_distribution.py

* Update binomial_distribution.py

* Update binomial_distribution.py

* Update binomial_distribution.py

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* black matrix_operation.py (#2199)

* black matrix_operation.py

* updating DIRECTORY.md

* Update matrix_operation.py

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* Celsius to Fahrenheit Conversions (#2188)

* added conversions between celsius and fahrenheit

* Renamed celsius_to_fahrenheit.py

* Fixed spelling issues

* modified file to fit the 88-character limit

* added changes to pass the travis-ci test

* further changed the files to pass the travis-ci test

* further changed the files to pass the travis-ci test

* Shortened conversions/fahrenheit_to_celsius.py

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* Type hints added to conversions/fahrenheit_to_celsius.py

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* changed the code to let the caller do the printing

* addressed the changes made on github

* Added Kelvin conversions and put temperature functions in a single file

* Removed whitespace from a blank line

* Update temperature_conversions.py

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* Add merge insertion sort (#2211)

* Add merge insertion sort

* Fix python naming conventions

* Add wikipedia link

* Add type hint

* Fix python to python3

Co-authored-by: Christian Clauss <cclauss@me.com>

* Refactor doubled process in if-condition into one outside of if-condition

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* Refactor ma…