2023-09-12 7:10 UTC+02:00, Dom Grigonis <dom.grigo...@gmail.com>: > I don’t think your example depicts the ambiguity well. > > 1. is the correct parsing of the Original1, 2. is the correct parsing of > Original2 and 3. is not correct for either of those. > > Original1 >> while a < b (x := c) - 42 > Original2 >> while a < b(x := c) - 42
They're the same. AFAIK `foo(...)` and `foo (...)` are parsed exactly the same way. A space in this place is irrelevant. And it's unlikely to change in the next few decades. > > 1. In this case, it’s obviously this one >> while a < b: >> (x := c) - 42 Why tho? Why would this one be more obvious than the other alternatives? What would be the rules to decide? If I may quote the PEP 20: > In the face of ambiguity, refuse the temptation to guess. > 2. In here your removed the space, which is not ambiguity, but rather > mistype Again, the space in this place doesn't matter. I removed it to show more explicitely how it could be parsed. > 3. Same as in 2. But also, this is not an option, because if there was no > indent on the next line, then body exists. So this is incorrect. >> Or: >> while a < b(x := c) - 42: >> # ??? I actually think this is the better parsing of the three: a SyntaxError. Celelibi _______________________________________________ Python-ideas mailing list -- python-ideas@python.org To unsubscribe send an email to python-ideas-le...@python.org https://mail.python.org/mailman3/lists/python-ideas.python.org/ Message archived at https://mail.python.org/archives/list/python-ideas@python.org/message/WSOJIXRMEYCNQGVNABPCJJ4S23PB6X4L/ Code of Conduct: http://python.org/psf/codeofconduct/
