Steven D'Aprano <steve+pyt...@pearwood.info> added the comment:
The behaviour is correct and not a bug. Commas are not supported when converting strings to float. The allowed format for floats as strings is described in the docs: https://docs.python.org/3/library/functions.html#float By the way, the negative sign is irrelevant. Commas are not supported regardless of whether there is a negative sign or not. The difficulty with commas is that it is ambiguous whether float('1,234') should interpret the comma as British/American digit grouping separator, and return 1234.0, or as the European decimal point, and return 1.234. For good or bad, Python has a bias towards English (like most programming languages) and so it chooses to only recognise the decimal point as a dot in the British/American style, and reject the comma. If you want to support European-style commas as the decimal point, the easiest way is to call float('1,234'.replace(',', '.')) ---------- nosy: +steven.daprano resolution: -> not a bug stage: -> resolved status: open -> closed _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46183> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
