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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
100 lines
1.8 KiB
Python
100 lines
1.8 KiB
Python
#
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# The Python Imaging Library.
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# $Id$
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#
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# Binary input/output support routines.
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#
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# Copyright (c) 1997-2003 by Secret Labs AB
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# Copyright (c) 1995-2003 by Fredrik Lundh
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# Copyright (c) 2012 by Brian Crowell
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#
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# See the README file for information on usage and redistribution.
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#
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from struct import pack, unpack_from
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from ._util import py3
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if py3:
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def i8(c):
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return c if c.__class__ is int else c[0]
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def o8(i):
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return bytes((i & 255,))
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else:
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def i8(c):
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return ord(c)
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def o8(i):
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return chr(i & 255)
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# Input, le = little endian, be = big endian
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def i16le(c, o=0):
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"""
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Converts a 2-bytes (16 bits) string to an unsigned integer.
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:param c: string containing bytes to convert
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:param o: offset of bytes to convert in string
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"""
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return unpack_from("<H", c, o)[0]
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def si16le(c, o=0):
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"""
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Converts a 2-bytes (16 bits) string to a signed integer.
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:param c: string containing bytes to convert
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:param o: offset of bytes to convert in string
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"""
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return unpack_from("<h", c, o)[0]
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def i32le(c, o=0):
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"""
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Converts a 4-bytes (32 bits) string to an unsigned integer.
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:param c: string containing bytes to convert
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:param o: offset of bytes to convert in string
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"""
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return unpack_from("<I", c, o)[0]
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def si32le(c, o=0):
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"""
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Converts a 4-bytes (32 bits) string to a signed integer.
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:param c: string containing bytes to convert
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:param o: offset of bytes to convert in string
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"""
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return unpack_from("<i", c, o)[0]
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def i16be(c, o=0):
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return unpack_from(">H", c, o)[0]
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def i32be(c, o=0):
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return unpack_from(">I", c, o)[0]
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# Output, le = little endian, be = big endian
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def o16le(i):
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return pack("<H", i)
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def o32le(i):
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return pack("<I", i)
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def o16be(i):
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return pack(">H", i)
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def o32be(i):
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return pack(">I", i)
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