New submission from Jürgen Gmach <juergen.gm...@googlemail.com>: The usage of flags not at the start of an expression is deprecated.
Also see "Deprecate the use of flags not at the start of regular expression" / https://bugs.python.org/issue22493 A deprecation warning is issued, but is cutoff at 20 characters. For complex expressions this is way too small. Example ( https://github.com/jedie/python-creole/issues/31 ): current output /home/jugmac00/Projects/bliss_deployment/work/_/home/jugmac00/.batou-shared-eggs/python_creole-1.3.2-py3.7.egg/creole/parser/creol2html_parser.py:48 /home/jugmac00/Projects/bliss_deployment/work/_/home/jugmac00/.batou-shared-eggs/python_creole-1.3.2-py3.7.egg/creole/parser/creol2html_parser.py:48: DeprecationWarning: Flags not at the start of the expression '(?P<image>\n ' (truncated) re.VERBOSE | re.UNICODE output with patched sre_parse.py creole/parser/creol2html_parser.py:51 /home/jugmac00/Projects/python-creole/creole/parser/creol2html_parser.py:51: DeprecationWarning: Flags not at the start of the expression '\n \\| \\s*\n (\n (?P<head> [=][^|]+ ) |\n (?P<cell> ( (?P<link>\n \\[\\[\n (?P<link_target>.+?) \\s*\n ([|] \\s* (?P<link_text>.+?) \\s*)?\n ]]\n )|\n (?P<macro_inline>\n << \\s* (?P<macro_inline_start>\\w+) \\s* (?P<macro_inline_args>.*?) \\s* >>\n (?P<macro_inline_text>(.|\\n)*?)\n <</ \\s* (?P=macro_inline_start) \\s* >>\n )\n |(?P<macro_tag>\n <<(?P<macro_tag_name> \\w+) (?P<macro_tag_args>.*?) \\s* /*>>\n )|(?i)(?P<image>\n {{\n (?P<image_target>.+?) \\s*\n (\\| \\s* (?P<image_text>.+?) \\s*)?\n }}\n )|(?P<pre_inline> {{{ (?P<pre_inline_text>.*?) }}} ) | [^|])+ )\n ) \\s*\n ' cell_re = re.compile(x, re.VERBOSE | re.UNICODE) (Line number differs because there was a change in the source between these two test runs). I would like to create a pr and remove the limitation to 20 characters completely, but wanted to get feedback before I do so. The deprecation warning was created by Tim Graham - maybe he could elaborate why it was cut at 20 chars at first? https://github.com/python/cpython/commit/abf275af5804c5f76fbe10c5cb1dd3d2e4b04c5b ---------- components: Regular Expressions messages: 360306 nosy: ezio.melotti, jugmac00, mrabarnett priority: normal severity: normal status: open title: DeprecationWarning for `flag not at the start of expression` is cutoff too early type: enhancement versions: Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39394> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
