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bpo-43317: Use io.DEFAULT_BUFFER_SIZE instead of arbitrary number in gzip module #24645

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Merged
merged 2 commits into from
Feb 26, 2021
Merged

bpo-43317: Use io.DEFAULT_BUFFER_SIZE instead of arbitrary number in gzip module #24645

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Use io.DEFAULT_BUFFER_SIZE instead of arbitrary number in gzip module
rhpvorderman Feb 25, 2021
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Add news entry
rhpvorderman Feb 25, 2021
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2 changes: 1 addition & 1 deletion Lib/gzip.py
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Original file line number Diff line number Diff line change
Expand Up @@ -596,7 +596,7 @@ def main():
f = builtins.open(arg, "rb")
g = open(arg + ".gz", "wb")
while True:
chunk = f.read(1024)
chunk = f.read(io.DEFAULT_BUFFER_SIZE)
if not chunk:
break
g.write(chunk)
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Library/2021-02-25-09-08-55.bpo-43317.qrOOpB.rst
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@@ -0,0 +1,3 @@
Set the chunk size for the ``gzip`` module main function to
io.DEFAULT_BUFFER_SIZE. This is slightly faster than the 1024 bytes constant
that was used previously.