[issue43692] Raise SyntaxError on implicit string concatentation in list

2021-04-01 Thread Carsten Docktor
Carsten Docktor added the comment: I'd consider this a bug, because I find it quite error prone. But I get the point that it might be currently used. Thank you for your response. I'll rely on third party checkers for this. -- resolution: -> rejected stage: -> resolved status: ope

[issue43692] Raise SyntaxError on implicit string concatentation in list

2021-04-01 Thread Serhiy Storchaka
Serhiy Storchaka added the comment: It is valid Python syntax, so SyntaxErorr cannot be raised. SyntaxWarning is an option, but the Python compiler only emits it if we absolutely sure that the code contains a bug (either it does not work as intended or can work differently on other implement

[issue43692] Raise SyntaxError on implicit string concatentation in list

2021-04-01 Thread Carsten Docktor
New submission from Carsten Docktor : I recently found several bugs, which came from the "feature" shown below. Is python supposed to use string concatenation in a list environment like this? Why would this be appreciated? ## Expected Behavior The example below should raise a SyntaxErorr for