Open
Description
Feature
When using f-strings, a SyntaxError occurs if a string inside the curly braces is enclosed with the same type of quotes as the outermost quotes.
In RustPython
>>>>> f'hello {'__friend__'}'
File "<stdin>", line 1
f'hello {'__friend__'}'
^
SyntaxError: invalid syntax. Got unexpected token '__friend__'
>>>>> f'hello {"__friend__"}'
'hello __friend__'
>>>>> f"hello {'__friend__'}"
'hello __friend__'Python Documentation or reference to CPython source code
In CPython v3.12.3
Python 3.12.3 | packaged by conda-forge | (main, Apr 15 2024, 18:38:13) [GCC 12.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> f'hello {'__friend__'}'
'hello __friend__'During update traceback.py from cpython v3.12.3
Following code are in traceback.py
# Lib/traceback.py
# line 170 - 174
def _safe_string(value, what, func=str):
try:
return func(value)
except:
return f'<{what} {func.__name__}() failed>'
# line 740 - 745
self._str = _safe_string(exc_value, 'exception')
try:
self.__notes__ = getattr(exc_value, '__notes__', None)
except Exception as e:
self.__notes__ = [
f'Ignored error getting __notes__: {_safe_string(e, '__notes__', repr)}']which make SyntaxError in RustPython
(base) ➜ RustPython git:(updaate_traceback_from_v3.12.3) ✗ cargo run Lib/test/test_traceback.py
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
Running `target/debug/rustpython Lib/test/test_traceback.py`
Traceback (most recent call last):
File "Lib/test/test_traceback.py", line 10, in <module>
import unittest
File "/home/mschoi/RustPython/pylib/Lib/unittest/__init__.py", line 60, in <module>
from .result import TestResult
File "/home/mschoi/RustPython/pylib/Lib/unittest/result.py", line 5, in <module>
import traceback
File "/home/mschoi/RustPython/pylib/Lib/traceback.py", line 745
f'Ignored error getting __notes__: {_safe_string(e, '__notes__', repr)}']
^
SyntaxError: invalid syntax. Got unexpected token '__notes__'