add zsh h()

venv/lib/python2.7/site-packages/pip/_internal/models/__init__.py

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+"""A package that contains models that represent entities.
+"""

venv/lib/python2.7/site-packages/pip/_internal/models/candidate.py

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+from pip._vendor.packaging.version import parse as parse_version
+
+from pip._internal.utils.models import KeyBasedCompareMixin
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from pip._vendor.packaging.version import _BaseVersion
+    from pip._internal.models.link import Link
+    from typing import Any
+
+
+class InstallationCandidate(KeyBasedCompareMixin):
+    """Represents a potential "candidate" for installation.
+    """
+
+    def __init__(self, project, version, location):
+        # type: (Any, str, Link) -> None
+        self.project = project
+        self.version = parse_version(version)  # type: _BaseVersion
+        self.location = location
+
+        super(InstallationCandidate, self).__init__(
+            key=(self.project, self.version, self.location),
+            defining_class=InstallationCandidate
+        )
+
+    def __repr__(self):
+        # type: () -> str
+        return "<InstallationCandidate({!r}, {!r}, {!r})>".format(
+            self.project, self.version, self.location,
+        )

venv/lib/python2.7/site-packages/pip/_internal/models/format_control.py

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+from pip._vendor.packaging.utils import canonicalize_name
+
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional, Set, FrozenSet
+
+
+class FormatControl(object):
+    """Helper for managing formats from which a package can be installed.
+    """
+
+    def __init__(self, no_binary=None, only_binary=None):
+        # type: (Optional[Set], Optional[Set]) -> None
+        if no_binary is None:
+            no_binary = set()
+        if only_binary is None:
+            only_binary = set()
+
+        self.no_binary = no_binary
+        self.only_binary = only_binary
+
+    def __eq__(self, other):
+        return self.__dict__ == other.__dict__
+
+    def __ne__(self, other):
+        return not self.__eq__(other)
+
+    def __repr__(self):
+        return "{}({}, {})".format(
+            self.__class__.__name__,
+            self.no_binary,
+            self.only_binary
+        )
+
+    @staticmethod
+    def handle_mutual_excludes(value, target, other):
+        # type: (str, Optional[Set], Optional[Set]) -> None
+        new = value.split(',')
+        while ':all:' in new:
+            other.clear()
+            target.clear()
+            target.add(':all:')
+            del new[:new.index(':all:') + 1]
+            # Without a none, we want to discard everything as :all: covers it
+            if ':none:' not in new:
+                return
+        for name in new:
+            if name == ':none:':
+                target.clear()
+                continue
+            name = canonicalize_name(name)
+            other.discard(name)
+            target.add(name)
+
+    def get_allowed_formats(self, canonical_name):
+        # type: (str) -> FrozenSet
+        result = {"binary", "source"}
+        if canonical_name in self.only_binary:
+            result.discard('source')
+        elif canonical_name in self.no_binary:
+            result.discard('binary')
+        elif ':all:' in self.only_binary:
+            result.discard('source')
+        elif ':all:' in self.no_binary:
+            result.discard('binary')
+        return frozenset(result)
+
+    def disallow_binaries(self):
+        # type: () -> None
+        self.handle_mutual_excludes(
+            ':all:', self.no_binary, self.only_binary,
+        )

venv/lib/python2.7/site-packages/pip/_internal/models/index.py

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+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+
+class PackageIndex(object):
+    """Represents a Package Index and provides easier access to endpoints
+    """
+
+    def __init__(self, url, file_storage_domain):
+        # type: (str, str) -> None
+        super(PackageIndex, self).__init__()
+        self.url = url
+        self.netloc = urllib_parse.urlsplit(url).netloc
+        self.simple_url = self._url_for_path('simple')
+        self.pypi_url = self._url_for_path('pypi')
+
+        # This is part of a temporary hack used to block installs of PyPI
+        # packages which depend on external urls only necessary until PyPI can
+        # block such packages themselves
+        self.file_storage_domain = file_storage_domain
+
+    def _url_for_path(self, path):
+        # type: (str) -> str
+        return urllib_parse.urljoin(self.url, path)
+
+
+PyPI = PackageIndex(
+    'https://pypi.org/', file_storage_domain='files.pythonhosted.org'
+)
+TestPyPI = PackageIndex(
+    'https://test.pypi.org/', file_storage_domain='test-files.pythonhosted.org'
+)

venv/lib/python2.7/site-packages/pip/_internal/models/link.py

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+import posixpath
+import re
+
+from pip._vendor.six.moves.urllib import parse as urllib_parse
+
+from pip._internal.download import path_to_url
+from pip._internal.utils.misc import (
+    WHEEL_EXTENSION, redact_password_from_url, splitext,
+)
+from pip._internal.utils.models import KeyBasedCompareMixin
+from pip._internal.utils.typing import MYPY_CHECK_RUNNING
+
+if MYPY_CHECK_RUNNING:
+    from typing import Optional, Tuple, Union
+    from pip._internal.index import HTMLPage
+
+
+class Link(KeyBasedCompareMixin):
+    """Represents a parsed link from a Package Index's simple URL
+    """
+
+    def __init__(self, url, comes_from=None, requires_python=None):
+        # type: (str, Optional[Union[str, HTMLPage]], Optional[str]) -> None
+        """
+        url:
+            url of the resource pointed to (href of the link)
+        comes_from:
+            instance of HTMLPage where the link was found, or string.
+        requires_python:
+            String containing the `Requires-Python` metadata field, specified
+            in PEP 345. This may be specified by a data-requires-python
+            attribute in the HTML link tag, as described in PEP 503.
+        """
+
+        # url can be a UNC windows share
+        if url.startswith('\\\\'):
+            url = path_to_url(url)
+
+        self.url = url
+        self.comes_from = comes_from
+        self.requires_python = requires_python if requires_python else None
+
+        super(Link, self).__init__(
+            key=(self.url),
+            defining_class=Link
+        )
+
+    def __str__(self):
+        if self.requires_python:
+            rp = ' (requires-python:%s)' % self.requires_python
+        else:
+            rp = ''
+        if self.comes_from:
+            return '%s (from %s)%s' % (redact_password_from_url(self.url),
+                                       self.comes_from, rp)
+        else:
+            return redact_password_from_url(str(self.url))
+
+    def __repr__(self):
+        return '<Link %s>' % self
+
+    @property
+    def filename(self):
+        # type: () -> str
+        _, netloc, path, _, _ = urllib_parse.urlsplit(self.url)
+        name = posixpath.basename(path.rstrip('/')) or netloc
+        name = urllib_parse.unquote(name)
+        assert name, ('URL %r produced no filename' % self.url)
+        return name
+
+    @property
+    def scheme(self):
+        # type: () -> str
+        return urllib_parse.urlsplit(self.url)[0]
+
+    @property
+    def netloc(self):
+        # type: () -> str
+        return urllib_parse.urlsplit(self.url)[1]
+
+    @property
+    def path(self):
+        # type: () -> str
+        return urllib_parse.unquote(urllib_parse.urlsplit(self.url)[2])
+
+    def splitext(self):
+        # type: () -> Tuple[str, str]
+        return splitext(posixpath.basename(self.path.rstrip('/')))
+
+    @property
+    def ext(self):
+        # type: () -> str
+        return self.splitext()[1]
+
+    @property
+    def url_without_fragment(self):
+        # type: () -> str
+        scheme, netloc, path, query, fragment = urllib_parse.urlsplit(self.url)
+        return urllib_parse.urlunsplit((scheme, netloc, path, query, None))
+
+    _egg_fragment_re = re.compile(r'[#&]egg=([^&]*)')
+
+    @property
+    def egg_fragment(self):
+        # type: () -> Optional[str]
+        match = self._egg_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _subdirectory_fragment_re = re.compile(r'[#&]subdirectory=([^&]*)')
+
+    @property
+    def subdirectory_fragment(self):
+        # type: () -> Optional[str]
+        match = self._subdirectory_fragment_re.search(self.url)
+        if not match:
+            return None
+        return match.group(1)
+
+    _hash_re = re.compile(
+        r'(sha1|sha224|sha384|sha256|sha512|md5)=([a-f0-9]+)'
+    )
+
+    @property
+    def hash(self):
+        # type: () -> Optional[str]
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(2)
+        return None
+
+    @property
+    def hash_name(self):
+        # type: () -> Optional[str]
+        match = self._hash_re.search(self.url)
+        if match:
+            return match.group(1)
+        return None
+
+    @property
+    def show_url(self):
+        # type: () -> Optional[str]
+        return posixpath.basename(self.url.split('#', 1)[0].split('?', 1)[0])
+
+    @property
+    def is_wheel(self):
+        # type: () -> bool
+        return self.ext == WHEEL_EXTENSION
+
+    @property
+    def is_artifact(self):
+        # type: () -> bool
+        """
+        Determines if this points to an actual artifact (e.g. a tarball) or if
+        it points to an "abstract" thing like a path or a VCS location.
+        """
+        from pip._internal.vcs import vcs
+
+        if self.scheme in vcs.all_schemes:
+            return False
+
+        return True