Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:

> It's no different from other edge cases where for some reason the space seems 
> optional, like `1and 2`.

The parser is not consistent here. `0or[]` is an error, while `0and[]` and 
`1or[]` are valid. See 
https://mail.python.org/archives/list/python-...@python.org/message/D2WPCITHG2LBQAP7DBTC6CY26WQUBAKP/

> A possible solution would be to only emit a SyntaxError if the NAME directly 
> preceding a STRING token contains one of the valid string prefixes (either 
> one of 'f', 'r', 'u', 'b').

This would not help for `if'a'<=x<='z'`. And we will get more breakage when add 
more string prefixes.

We should either require a whitespace between an identifier and a string 
literal (with SyntaxWarning in meantime) or allow to omit it.

----------

_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40246>
_______________________________________
_______________________________________________
Python-bugs-list mailing list
Unsubscribe: 
https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com

Reply via email to