Mercurial > repos > shellac > guppy_basecaller

comparison env/lib/python3.7/site-packages/packaging/utils.py @ 0:26e78fe6e8c4 draft

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"planemo upload commit c699937486c35866861690329de38ec1a5d9f783"
author shellac
date Sat, 02 May 2020 07:14:21 -0400
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-1:000000000000 0:26e78fe6e8c4
1 # This file is dual licensed under the terms of the Apache License, Version
2 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
3 # for complete details.
4 from __future__ import absolute_import, division, print_function
5
6 import re
7
8 from ._typing import MYPY_CHECK_RUNNING
9 from .version import InvalidVersion, Version
10
11 if MYPY_CHECK_RUNNING: # pragma: no cover
12 from typing import Union
13
14 _canonicalize_regex = re.compile(r"[-_.]+")
15
16
17 def canonicalize_name(name):
18 # type: (str) -> str
19 # This is taken from PEP 503.
20 return _canonicalize_regex.sub("-", name).lower()
21
22
23 def canonicalize_version(_version):
24 # type: (str) -> Union[Version, str]
25 """
26 This is very similar to Version.__str__, but has one subtle difference
27 with the way it handles the release segment.
28 """
29
30 try:
31 version = Version(_version)
32 except InvalidVersion:
33 # Legacy versions cannot be normalized
34 return _version
35
36 parts = []
37
38 # Epoch
39 if version.epoch != 0:
40 parts.append("{0}!".format(version.epoch))
41
42 # Release segment
43 # NB: This strips trailing '.0's to normalize
44 parts.append(re.sub(r"(\.0)+$", "", ".".join(str(x) for x in version.release)))
45
46 # Pre-release
47 if version.pre is not None:
48 parts.append("".join(str(x) for x in version.pre))
49
50 # Post-release
51 if version.post is not None:
52 parts.append(".post{0}".format(version.post))
53
54 # Development release
55 if version.dev is not None:
56 parts.append(".dev{0}".format(version.dev))
57
58 # Local version segment
59 if version.local is not None:
60 parts.append("+{0}".format(version.local))
61
62 return "".join(parts)