Terry J. Reedy <tjre...@udel.edu> added the comment:
I do not think your wish is sensibly possible. GzipFile wraps an object that is
or simulates a file. This is necessary because GzipFile "simulates most of the
methods of a file object, with the exception of the readinto() and truncate()
methods." Note that seek, rewind, and tell are not excluded. For instance, I
see no way that this:
def rewind(self):
'''Return the uncompressed stream file position indicator to the
beginning of the file'''
if self.mode != READ:
raise IOError("Can't rewind in write mode")
self.fileobj.seek(0)
...
could be implemented without seek, and without having a complete local copy of
everything read.
urllib.request.urlopen returns a 'file-like' object that does not quite fully
simulate a file. The downstream OP should save the gzip file locally using
urlretrieve() and *then* open and iterate through it. Feel free to forward this
suggestion to the OP.
----------
nosy: +terry.reedy
resolution: -> wont fix
status: open -> closed
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue9664>
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