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Make lzma.{encode,decode}_filter_properties private.

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These functions were originally added to support LZMA compression in the zipfile
module, and are not of interest for the majority of users.

They can be made public in 3.4 if there is user interest, but in the meanwhile,
I've opted to present a smaller, simpler API for the module's initial release.
This commit is contained in:
Nadeem Vawda 2012-06-21 23:36:48 +02:00
parent 01317d2ed5
commit a425c3d5a2
5 changed files with 31 additions and 63 deletions
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6
Lib/zipfile.py
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@ -495,9 +495,9 @@ class LZMACompressor:
self._comp = None
def _init(self):
props = lzma.encode_filter_properties({'id': lzma.FILTER_LZMA1})
props = lzma._encode_filter_properties({'id': lzma.FILTER_LZMA1})
self._comp = lzma.LZMACompressor(lzma.FORMAT_RAW, filters=[
lzma.decode_filter_properties(lzma.FILTER_LZMA1, props)
lzma._decode_filter_properties(lzma.FILTER_LZMA1, props)
])
return struct.pack('<BBH', 9, 4, len(props)) + props
@ -529,7 +529,7 @@ class LZMADecompressor:
return b''
self._decomp = lzma.LZMADecompressor(lzma.FORMAT_RAW, filters=[
lzma.decode_filter_properties(lzma.FILTER_LZMA1,
lzma._decode_filter_properties(lzma.FILTER_LZMA1,
self._unconsumed[4:4 + psize])
])
data = self._unconsumed[4 + psize:]