Python pep425tags.get_supported方法代码示例

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def get_tags(self):
        # type: () -> List[Pep425Tag]
        """
        Return the supported PEP 425 tags to check wheel candidates against.

        The tags are returned in order of preference (most preferred first).
        """
        if self._valid_tags is None:
            tags = get_supported(
                version_info=self._given_py_version_info,
                platforms=self.platforms,
                abi=self.abi,
                impl=self.implementation,
            )
            self._valid_tags = tags

        return self._valid_tags 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def get_tags(self):
        # type: () -> List[Pep425Tag]
        """
        Return the supported PEP 425 tags to check wheel candidates against.

        The tags are returned in order of preference (most preferred first).
        """
        if self._valid_tags is None:
            # Pass versions=None if no py_version_info was given since
            # versions=None uses special default logic.
            py_version_info = self._given_py_version_info
            if py_version_info is None:
                versions = None
            else:
                versions = [version_info_to_nodot(py_version_info)]

            tags = get_supported(
                versions=versions,
                platform=self.platform,
                abi=self.abi,
                impl=self.implementation,
            )
            self._valid_tags = tags

        return self._valid_tags 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def support_index_min(self, tags=None):
        """
        Return the lowest index that one of the wheel's file_tag combinations
        achieves in the supported_tags list e.g. if there are 8 supported tags,
        and one of the file tags is first in the list, then return 0.  Returns
        None is the wheel is not supported.
        """
        if tags is None:  # for mock
            tags = pep425tags.get_supported()
        indexes = [tags.index(c) for c in self.file_tags if c in tags]
        return min(indexes) if indexes else None 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def supported(self, tags=None):
        """Is this wheel supported on this system?"""
        if tags is None:  # for mock
            tags = pep425tags.get_supported()
        return bool(set(tags).intersection(self.file_tags)) 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def support_index_min(self, tags=None):
        # type: (Optional[List[Pep425Tag]]) -> Optional[int]
        """
        Return the lowest index that one of the wheel's file_tag combinations
        achieves in the supported_tags list e.g. if there are 8 supported tags,
        and one of the file tags is first in the list, then return 0.  Returns
        None is the wheel is not supported.
        """
        if tags is None:  # for mock
            tags = pep425tags.get_supported()
        indexes = [tags.index(c) for c in self.file_tags if c in tags]
        return min(indexes) if indexes else None 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def supported(self, tags=None):
        # type: (Optional[List[Pep425Tag]]) -> bool
        """Is this wheel supported on this system?"""
        if tags is None:  # for mock
            tags = pep425tags.get_supported()
        return bool(set(tags).intersection(self.file_tags)) 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def populate_link(self, finder, upgrade, require_hashes):
        # type: (PackageFinder, bool, bool) -> None
        """Ensure that if a link can be found for this, that it is found.

        Note that self.link may still be None - if Upgrade is False and the
        requirement is already installed.

        If require_hashes is True, don't use the wheel cache, because cached
        wheels, always built locally, have different hashes than the files
        downloaded from the index server and thus throw false hash mismatches.
        Furthermore, cached wheels at present have undeterministic contents due
        to file modification times.
        """
        if self.link is None:
            self.link = finder.find_requirement(self, upgrade)
        if self._wheel_cache is not None and not require_hashes:
            old_link = self.link
            supported_tags = pep425tags.get_supported()
            self.link = self._wheel_cache.get(
                link=self.link,
                package_name=self.name,
                supported_tags=supported_tags,
            )
            if old_link != self.link:
                logger.debug('Using cached wheel link: %s', self.link)

    # Things that are valid for all kinds of requirements? 

# 需要导入模块: from pip._internal import pep425tags [as 别名]
# 或者: from pip._internal.pep425tags import get_supported [as 别名]
def __init__(
        self,
        platforms=None,  # type: Optional[List[str]]
        py_version_info=None,  # type: Optional[Tuple[int, ...]]
        abi=None,  # type: Optional[str]
        implementation=None,  # type: Optional[str]
    ):
        # type: (...) -> None
        """
        :param platforms: A list of platform strings or None. If None,
            searches for packages that are supported by the current system.
            Otherwise, will find packages that can be built on the platforms
            passed in. These packages will only be downloaded for
            distribution: they will not be built locally.
        :param py_version_info: An optional tuple of ints representing the
            Python version information to use (e.g. `sys.version_info[:3]`).
            This can have length 1, 2, or 3 when provided.
        :param abi: A string or None. This is passed to pep425tags.py's
            get_supported() function as is.
        :param implementation: A string or None. This is passed to
            pep425tags.py's get_supported() function as is.
        """
        # Store the given py_version_info for when we call get_supported().
        self._given_py_version_info = py_version_info

        if py_version_info is None:
            py_version_info = sys.version_info[:3]
        else:
            py_version_info = normalize_version_info(py_version_info)

        py_version = '.'.join(map(str, py_version_info[:2]))

        self.abi = abi
        self.implementation = implementation
        self.platforms = platforms
        self.py_version = py_version
        self.py_version_info = py_version_info

        # This is used to cache the return value of get_tags().
        self._valid_tags = None  # type: Optional[List[Pep425Tag]]