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* Bump packaging from 21.3 to 22.0 Bumps [packaging](https://github.com/pypa/packaging) from 21.3 to 22.0. - [Release notes](https://github.com/pypa/packaging/releases) - [Changelog](https://github.com/pypa/packaging/blob/main/CHANGELOG.rst) - [Commits](https://github.com/pypa/packaging/compare/21.3...22.0) --- updated-dependencies: - dependency-name: packaging dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> * Update packaging==22.0 Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com> [skip ci]
96 lines
3.2 KiB
Python
96 lines
3.2 KiB
Python
# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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import urllib.parse
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from typing import Any, List, Optional, Set
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from ._parser import parse_requirement
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from ._tokenizer import ParserSyntaxError
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from .markers import Marker, _normalize_extra_values
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from .specifiers import SpecifierSet
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class InvalidRequirement(ValueError):
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"""
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An invalid requirement was found, users should refer to PEP 508.
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"""
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class Requirement:
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"""Parse a requirement.
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Parse a given requirement string into its parts, such as name, specifier,
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URL, and extras. Raises InvalidRequirement on a badly-formed requirement
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string.
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"""
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# TODO: Can we test whether something is contained within a requirement?
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# If so how do we do that? Do we need to test against the _name_ of
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# the thing as well as the version? What about the markers?
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# TODO: Can we normalize the name and extra name?
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def __init__(self, requirement_string: str) -> None:
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try:
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parsed = parse_requirement(requirement_string)
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except ParserSyntaxError as e:
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raise InvalidRequirement(str(e)) from e
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self.name: str = parsed.name
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if parsed.url:
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parsed_url = urllib.parse.urlparse(parsed.url)
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if parsed_url.scheme == "file":
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if urllib.parse.urlunparse(parsed_url) != parsed.url:
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raise InvalidRequirement("Invalid URL given")
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elif not (parsed_url.scheme and parsed_url.netloc) or (
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not parsed_url.scheme and not parsed_url.netloc
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):
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raise InvalidRequirement(f"Invalid URL: {parsed.url}")
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self.url: Optional[str] = parsed.url
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else:
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self.url = None
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self.extras: Set[str] = set(parsed.extras if parsed.extras else [])
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self.specifier: SpecifierSet = SpecifierSet(parsed.specifier)
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self.marker: Optional[Marker] = None
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if parsed.marker is not None:
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self.marker = Marker.__new__(Marker)
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self.marker._markers = _normalize_extra_values(parsed.marker)
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def __str__(self) -> str:
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parts: List[str] = [self.name]
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if self.extras:
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formatted_extras = ",".join(sorted(self.extras))
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parts.append(f"[{formatted_extras}]")
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if self.specifier:
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parts.append(str(self.specifier))
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if self.url:
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parts.append(f"@ {self.url}")
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if self.marker:
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parts.append(" ")
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if self.marker:
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parts.append(f"; {self.marker}")
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return "".join(parts)
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def __repr__(self) -> str:
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return f"<Requirement('{self}')>"
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def __hash__(self) -> int:
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return hash((self.__class__.__name__, str(self)))
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def __eq__(self, other: Any) -> bool:
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if not isinstance(other, Requirement):
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return NotImplemented
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return (
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self.name == other.name
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and self.extras == other.extras
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and self.specifier == other.specifier
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and self.url == other.url
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and self.marker == other.marker
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)
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