[issue37461] email.parser.Parser hang

[Marcin Niemira]

Marcin Niemira <marcin.niemira at gmail.com> added the comment:

Sounds like there is an infinite loop here:


```
Pdb) 
> /usr/lib/python3.7/email/_header_value_parser.py(2370)get_parameter()
-> v.append(token)
(Pdb) 
> /usr/lib/python3.7/email/_header_value_parser.py(2365)get_parameter()
-> while value:
```

the ```v.append(token)``` is just growing with ```ValueTerminal(''), ValueTerminal(''), ValueTerminal('')...```

I'd be happy to try to fix this.

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nosy: +Marcin Niemira

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37461>
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