New submission from Vitaly Kruglikov <[email protected]>:
```
In [9]: from urllib.parse import urlencode, parse_qs
In [10]: import ast, ssl
In [11]: d = dict(cert_reqs=ssl.CERT_NONE)
In [12]: urlencode(d)
Out[12]: 'cert_reqs=VerifyMode.CERT_NONE'
In [25]: parse_qs('cert_reqs=VerifyMode.CERT_NONE')
Out[25]: {'cert_reqs': ['VerifyMode.CERT_NONE']}
In [29]: ast.literal_eval('VerifyMode.CERT_NONE')
Traceback (most recent call last)
...
ValueError: malformed node or string: <_ast.Attribute object at 0x105c22358>
```
This used to work fine and produce `'cert_reqs=0'` on Python 2.7, allowing it
to be decoded properly downstream. However, `'cert_reqs=VerifyMode.CERT_NONE'`
can't be decoded generically. So, something it's that used to work in prior
python versions that is breaking now.
Additional information. json.dumps() actually dumps that value as a number
instead of 'VerifyMode.CERT_NONE'.
It appears that urlencode doesn't work properly with enums, where I would
expect it to emit the numeric value of the enum.
----------
assignee: christian.heimes
components: Library (Lib), SSL
messages: 313424
nosy: christian.heimes, vitaly.krug
priority: normal
severity: normal
status: open
title: urlencode produces bad output from ssl.CERT_NONE and friends that chokes
decoders
type: crash
versions: Python 3.6, Python 3.7
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<https://bugs.python.org/issue33025>
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