New submission from Sebastian Rittau <[email protected]>:
Consider the following code:
import cgi
from io import BytesIO
cgi.FieldStorage(BytesIO(b"{}"), environ={
"REQUEST_METHOD": "POST",
"CONTENT_TYPE": "application/json",
"CONTENT_LENGTH": "14",
})
This will throw the following exception:
Traceback (most recent call last):
File "foo.py", line 7, in <module>
"CONTENT_LENGTH": "14",
File "/usr/lib/python3.6/cgi.py", line 561, in __init__
self.read_single()
File "/usr/lib/python3.6/cgi.py", line 740, in read_single
self.read_binary()
File "/usr/lib/python3.6/cgi.py", line 762, in read_binary
self.file.write(data)
TypeError: write() argument must be str, not bytes
Of course, the input does not contain any argument string to be parsed by
FieldStorage. Nevertheless, a TypeError in a totally unrelated part of the code
seems like a bug. In my opinion, FieldStorage should just remain empty in this
case, or - at best - throw a ValueError with a sensible error message.
----------
messages: 306244
nosy: srittau
priority: normal
severity: normal
status: open
title: cgi: TypeError
versions: Python 3.6
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Python tracker <[email protected]>
<https://bugs.python.org/issue32029>
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