Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/packaging/utils.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 # This file is dual licensed under the terms of the Apache License, Version |
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2 # 2.0, and the BSD License. See the LICENSE file in the root of this repository |
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3 # for complete details. |
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4 from __future__ import absolute_import, division, print_function |
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5 |
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6 import re |
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7 |
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8 from ._typing import TYPE_CHECKING, cast |
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9 from .tags import Tag, parse_tag |
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10 from .version import InvalidVersion, Version |
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11 |
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12 if TYPE_CHECKING: # pragma: no cover |
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13 from typing import FrozenSet, NewType, Tuple, Union |
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14 |
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15 BuildTag = Union[Tuple[()], Tuple[int, str]] |
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16 NormalizedName = NewType("NormalizedName", str) |
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17 else: |
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18 BuildTag = tuple |
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19 NormalizedName = str |
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20 |
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21 |
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22 class InvalidWheelFilename(ValueError): |
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23 """ |
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24 An invalid wheel filename was found, users should refer to PEP 427. |
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25 """ |
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26 |
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27 |
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28 class InvalidSdistFilename(ValueError): |
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29 """ |
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30 An invalid sdist filename was found, users should refer to the packaging user guide. |
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31 """ |
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32 |
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33 |
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34 _canonicalize_regex = re.compile(r"[-_.]+") |
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35 # PEP 427: The build number must start with a digit. |
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36 _build_tag_regex = re.compile(r"(\d+)(.*)") |
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37 |
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38 |
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39 def canonicalize_name(name): |
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40 # type: (str) -> NormalizedName |
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41 # This is taken from PEP 503. |
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42 value = _canonicalize_regex.sub("-", name).lower() |
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43 return cast(NormalizedName, value) |
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44 |
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45 |
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46 def canonicalize_version(version): |
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47 # type: (Union[Version, str]) -> Union[Version, str] |
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48 """ |
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49 This is very similar to Version.__str__, but has one subtle difference |
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50 with the way it handles the release segment. |
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51 """ |
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52 if not isinstance(version, Version): |
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53 try: |
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54 version = Version(version) |
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55 except InvalidVersion: |
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56 # Legacy versions cannot be normalized |
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57 return version |
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58 |
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59 parts = [] |
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60 |
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61 # Epoch |
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62 if version.epoch != 0: |
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63 parts.append("{0}!".format(version.epoch)) |
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64 |
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65 # Release segment |
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66 # NB: This strips trailing '.0's to normalize |
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67 parts.append(re.sub(r"(\.0)+$", "", ".".join(str(x) for x in version.release))) |
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68 |
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69 # Pre-release |
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70 if version.pre is not None: |
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71 parts.append("".join(str(x) for x in version.pre)) |
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72 |
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73 # Post-release |
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74 if version.post is not None: |
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75 parts.append(".post{0}".format(version.post)) |
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76 |
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77 # Development release |
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78 if version.dev is not None: |
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79 parts.append(".dev{0}".format(version.dev)) |
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80 |
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81 # Local version segment |
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82 if version.local is not None: |
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83 parts.append("+{0}".format(version.local)) |
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84 |
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85 return "".join(parts) |
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86 |
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87 |
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88 def parse_wheel_filename(filename): |
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89 # type: (str) -> Tuple[NormalizedName, Version, BuildTag, FrozenSet[Tag]] |
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90 if not filename.endswith(".whl"): |
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91 raise InvalidWheelFilename( |
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92 "Invalid wheel filename (extension must be '.whl'): {0}".format(filename) |
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93 ) |
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94 |
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95 filename = filename[:-4] |
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96 dashes = filename.count("-") |
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97 if dashes not in (4, 5): |
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98 raise InvalidWheelFilename( |
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99 "Invalid wheel filename (wrong number of parts): {0}".format(filename) |
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100 ) |
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101 |
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102 parts = filename.split("-", dashes - 2) |
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103 name_part = parts[0] |
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104 # See PEP 427 for the rules on escaping the project name |
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105 if "__" in name_part or re.match(r"^[\w\d._]*$", name_part, re.UNICODE) is None: |
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106 raise InvalidWheelFilename("Invalid project name: {0}".format(filename)) |
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107 name = canonicalize_name(name_part) |
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108 version = Version(parts[1]) |
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109 if dashes == 5: |
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110 build_part = parts[2] |
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111 build_match = _build_tag_regex.match(build_part) |
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112 if build_match is None: |
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113 raise InvalidWheelFilename( |
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114 "Invalid build number: {0} in '{1}'".format(build_part, filename) |
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115 ) |
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116 build = cast(BuildTag, (int(build_match.group(1)), build_match.group(2))) |
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117 else: |
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118 build = () |
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119 tags = parse_tag(parts[-1]) |
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120 return (name, version, build, tags) |
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121 |
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122 |
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123 def parse_sdist_filename(filename): |
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124 # type: (str) -> Tuple[NormalizedName, Version] |
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125 if not filename.endswith(".tar.gz"): |
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126 raise InvalidSdistFilename( |
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127 "Invalid sdist filename (extension must be '.tar.gz'): {0}".format(filename) |
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128 ) |
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129 |
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130 # We are requiring a PEP 440 version, which cannot contain dashes, |
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131 # so we split on the last dash. |
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132 name_part, sep, version_part = filename[:-7].rpartition("-") |
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133 if not sep: |
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134 raise InvalidSdistFilename("Invalid sdist filename: {0}".format(filename)) |
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135 |
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136 name = canonicalize_name(name_part) |
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137 version = Version(version_part) |
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138 return (name, version) |