Hari Sekhon wrote:
> I've seen people using everything from zip to touch, either out of
> laziness or out of the fact it wouldn't work very well in python, this
> zip case is a good example.
so based on a limitation in one library, and some random code you've
seen on the internet, you're making generalizations about the language ?
the zip case is a pretty lousy example, btw; after all, using the
existing API, it's not that hard to implement an *incremental* read
function if the provided read-into-string version isn't sufficient:
import zipfile, zlib
##
# Given a 'zip' instance, copy data from the 'name' to the
# 'out' stream.
def explode(out, zip, name):
zinfo = zip.getinfo(name)
if zinfo.compress_type == zipfile.ZIP_STORED:
decoder = None
elif zinfo.compress_type == zipfile.ZIP_DEFLATED:
decoder = zlib.decompressobj(-zlib.MAX_WBITS)
else:
raise zipfile.BadZipFile("unsupported compression method")
zip.fp.seek(zinfo.file_offset)
size = zinfo.compress_size
while 1:
data = zip.fp.read(min(size, 8192))
if not data:
break
size -= len(data)
if decoder:
data = decoder.decompress(data)
out.write(data)
if decoder:
out.write(decoder.decompress('Z'))
out.write(decoder.flush())
</F>
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