Mercurial > hgrepos > Python > apps > py-cutils

annotate cutils/util/constants.py @ 126:dfe7bb0579e2

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Extend copyright years to 2025
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 02 Jan 2025 17:09:50 +0100
parents e51f34ad6d71
children a813094ae4f5
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1 # -*- coding: utf-8 -*-
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2 # :-
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3 # :Copyright: (c) 2020-2025 Franz Glasner
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4 # :License: BSD-3-Clause
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5 # :-
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6 r"""Common constants and compatibility definitions.
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7
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8 """
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9
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10 __all__ = ["PY2",
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11 "PATH_TYPES",
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12 "READ_CHUNK_SIZE",
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13 "MAX_AUTO_MAP_SIZE",
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14 "MAP_WINDOW_SIZE"
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15 ]
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17
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18 import sys
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19 try:
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20 import pathlib
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21 except ImportError:
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22 pathlib = None
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25 PY2 = sys.version_info[0] < 3
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27 if PY2:
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28 PATH_TYPES = (unicode, str) # noqa: F821 (undefined name 'unicode')
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29 else:
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30 if pathlib:
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31 PATH_TYPES = (str, bytes, pathlib.Path)
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32 else:
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33 PATH_TYPES = (str, bytes)
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34
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35 READ_CHUNK_SIZE = 2 * 1024 * 1024 # like BUFSIZE_MAX on FreeBSD
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36 MAX_AUTO_MAP_SIZE = 8 * 1024 * 1024
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37 MAP_WINDOW_SIZE = MAX_AUTO_MAP_SIZE # do not totally trash memory on big files