Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/models/target_python.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 import sys |
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2 |
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3 from pip._internal.utils.compatibility_tags import get_supported, version_info_to_nodot |
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4 from pip._internal.utils.misc import normalize_version_info |
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5 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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6 |
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7 if MYPY_CHECK_RUNNING: |
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8 from typing import List, Optional, Tuple |
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9 |
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10 from pip._vendor.packaging.tags import Tag |
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11 |
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12 |
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13 class TargetPython: |
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14 |
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15 """ |
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16 Encapsulates the properties of a Python interpreter one is targeting |
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17 for a package install, download, etc. |
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18 """ |
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19 |
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20 __slots__ = [ |
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21 "_given_py_version_info", |
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22 "abis", |
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23 "implementation", |
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24 "platforms", |
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25 "py_version", |
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26 "py_version_info", |
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27 "_valid_tags", |
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28 ] |
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29 |
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30 def __init__( |
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31 self, |
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32 platforms=None, # type: Optional[List[str]] |
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33 py_version_info=None, # type: Optional[Tuple[int, ...]] |
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34 abis=None, # type: Optional[List[str]] |
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35 implementation=None, # type: Optional[str] |
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36 ): |
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37 # type: (...) -> None |
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38 """ |
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39 :param platforms: A list of strings or None. If None, searches for |
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40 packages that are supported by the current system. Otherwise, will |
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41 find packages that can be built on the platforms passed in. These |
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42 packages will only be downloaded for distribution: they will |
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43 not be built locally. |
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44 :param py_version_info: An optional tuple of ints representing the |
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45 Python version information to use (e.g. `sys.version_info[:3]`). |
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46 This can have length 1, 2, or 3 when provided. |
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47 :param abis: A list of strings or None. This is passed to |
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48 compatibility_tags.py's get_supported() function as is. |
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49 :param implementation: A string or None. This is passed to |
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50 compatibility_tags.py's get_supported() function as is. |
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51 """ |
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52 # Store the given py_version_info for when we call get_supported(). |
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53 self._given_py_version_info = py_version_info |
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54 |
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55 if py_version_info is None: |
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56 py_version_info = sys.version_info[:3] |
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57 else: |
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58 py_version_info = normalize_version_info(py_version_info) |
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59 |
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60 py_version = '.'.join(map(str, py_version_info[:2])) |
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61 |
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62 self.abis = abis |
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63 self.implementation = implementation |
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64 self.platforms = platforms |
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65 self.py_version = py_version |
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66 self.py_version_info = py_version_info |
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67 |
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68 # This is used to cache the return value of get_tags(). |
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69 self._valid_tags = None # type: Optional[List[Tag]] |
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70 |
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71 def format_given(self): |
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72 # type: () -> str |
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73 """ |
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74 Format the given, non-None attributes for display. |
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75 """ |
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76 display_version = None |
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77 if self._given_py_version_info is not None: |
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78 display_version = '.'.join( |
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79 str(part) for part in self._given_py_version_info |
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80 ) |
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81 |
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82 key_values = [ |
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83 ('platforms', self.platforms), |
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84 ('version_info', display_version), |
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85 ('abis', self.abis), |
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86 ('implementation', self.implementation), |
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87 ] |
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88 return ' '.join( |
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89 f'{key}={value!r}' for key, value in key_values |
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90 if value is not None |
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91 ) |
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92 |
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93 def get_tags(self): |
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94 # type: () -> List[Tag] |
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95 """ |
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96 Return the supported PEP 425 tags to check wheel candidates against. |
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97 |
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98 The tags are returned in order of preference (most preferred first). |
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99 """ |
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100 if self._valid_tags is None: |
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101 # Pass versions=None if no py_version_info was given since |
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102 # versions=None uses special default logic. |
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103 py_version_info = self._given_py_version_info |
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104 if py_version_info is None: |
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105 version = None |
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106 else: |
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107 version = version_info_to_nodot(py_version_info) |
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108 |
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109 tags = get_supported( |
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110 version=version, |
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111 platforms=self.platforms, |
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112 abis=self.abis, |
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113 impl=self.implementation, |
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114 ) |
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115 self._valid_tags = tags |
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116 |
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117 return self._valid_tags |