New submission from Laurent Gautier:
When creating a `gzip.GzipFile` using the named parameter `fileobj`
rather than filename, iterating over it is broken:
```
AttributeError: 'GzipFile' object has no attribute 'extrastart'
```
The short example below is demonstrating the problem:
## ---
import gzip, tempfile
_data = (b'@WXOVW:25:85', b'ATACGCGGCT'+b'GATCGTAGCG',
b'+',
b'@@))CCCCBB'+b'???ECCEECC')
data = gzip.zlib.compress(b'\n'.join(_data))
foo = tempfile.NamedTemporaryFile()
foo.write(data)
foo.flush()
foo.seek(0)
gzf = gzip.GzipFile(fileobj=foo)
# this will trigger the AttributeError
for x in gzf:
print(x)
----------
components: Library (Lib)
messages: 191989
nosy: Laurent.Gautier
priority: normal
severity: normal
status: open
title: 'GzipFile' object has no attribute 'extrastart'
type: crash
versions: Python 2.7
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue18323>
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