A SyntaxError less detailed since 3.10 in specific example #94192

Serpens66 · 2022-06-24T04:03:56Z

Python 3.10.5

New SyntaxError ^ pointer is misleading in following example compared to older python versions.

d = { "foo":"foo", "bar":lambda b:{"bar":testfn(von="1"b=b)}, }
(code written in 4 lines, but github...)

Results in error message on 3.10.5:

File "test.py", line 3
"bar":lambda b:{"bar":testfn(von="1"b=b)},
^
SyntaxError: expression expected after dictionary key and ':'

While on python 3.8 it was more helpful:

File "test.py", line 3
"bar":lambda b:{"bar":testfn(von="1"b=b)},
^
SyntaxError: invalid syntax

(the formatting of this "^" seems to be not correct here at github. On 3.10.5 it is pointing on the ":" prior to lambda, while on 3.8 it is pointing on the missing comma)

The text was updated successfully, but these errors were encountered:

hauntsaninja · 2022-06-24T12:57:42Z

You can use triple backquotes (```) to preserve formatting on Github.

λ python3.9
Python 3.9.12 (main, Apr 16 2022, 17:49:09) 
[Clang 13.0.0 (clang-1300.0.27.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> d = { "foo":"foo", "bar":lambda b:{"bar":testfn(von="1"b=b)}, }
  File "<stdin>", line 1
    d = { "foo":"foo", "bar":lambda b:{"bar":testfn(von="1"b=b)}, }
                                                           ^
SyntaxError: invalid syntax

λ python3.10
Python 3.10.5 (main, Jun 18 2022, 23:46:13) [Clang 13.0.0 (clang-1300.0.27.3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> d = { "foo":"foo", "bar":lambda b:{"bar":testfn(von="1"b=b)}, }
  File "<stdin>", line 1
    d = { "foo":"foo", "bar":lambda b:{"bar":testfn(von="1"b=b)}, }
                            ^
SyntaxError: expression expected after dictionary key and ':'

Serpens66 added the type-bug label Jun 24, 2022

AlexWaygood added the interpreter-core label Jun 24, 2022

A SyntaxError less detailed since 3.10 in specific example #94192

A SyntaxError less detailed since 3.10 in specific example #94192

Serpens66 commented Jun 24, 2022 •

edited

hauntsaninja commented Jun 24, 2022 •

edited

A SyntaxError less detailed since 3.10 in specific example #94192

A SyntaxError less detailed since 3.10 in specific example #94192

Comments

Serpens66 commented Jun 24, 2022 • edited

hauntsaninja commented Jun 24, 2022 • edited

Serpens66 commented Jun 24, 2022 •

edited

hauntsaninja commented Jun 24, 2022 •

edited