Gregory P. Smith <g...@krypto.org> added the comment:
An example code snippet to detect if the API supports the new parameter at
runtime for code that wants to use to use something other than the default '&'.
```
if 'separator' in inspect.signature(urllib.parse.parse_qs).parameters:
... parse_qs(..., separator=';')
else:
... parse_qs(...)
```
calling it with the arg and catching TypeError if that fails would also work,
but might not be preferred as catching things like TypeError is non-specific
and could hide other problems, making it a code maintenance headache.
----------
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue42967>
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