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44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
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import sys
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PY3 = sys.version_info[0] == 3
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try:
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from itertools import izip
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xrange = xrange
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except ImportError:
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# py3
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izip = zip
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xrange = range
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# end handle python version
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try:
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# Python 2
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buffer = buffer
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memoryview = buffer
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# Assume no memory view ...
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def to_bytes(i):
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return i
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except NameError:
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# Python 3 has no `buffer`; only `memoryview`
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# However, it's faster to just slice the object directly, maybe it keeps a view internally
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def buffer(obj, offset, size=None):
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if size is None:
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# return memoryview(obj)[offset:]
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return obj[offset:]
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else:
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# return memoryview(obj)[offset:offset+size]
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return obj[offset:offset + size]
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# end buffer reimplementation
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# smmap can return memory view objects, which can't be compared as buffers/bytes can ...
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def to_bytes(i):
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if isinstance(i, memoryview):
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return i.tobytes()
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return i
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memoryview = memoryview
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try:
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MAXSIZE = sys.maxint
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except AttributeError:
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MAXSIZE = sys.maxsize
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