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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
__init__.py	63 B	-rw-r--r--
candidate.py	990 B	-rw-r--r--
direct_url.py	6.2 KB	-rw-r--r--
format_control.py	2.46 KB	-rw-r--r--
index.py	1.01 KB	-rw-r--r--
link.py	9.59 KB	-rw-r--r--
scheme.py	738 B	-rw-r--r--
search_scope.py	4.41 KB	-rw-r--r--
selection_prefs.py	1.86 KB	-rw-r--r--
target_python.py	3.77 KB	-rw-r--r--
wheel.py	3.42 KB	-rw-r--r--

Code Editor : format_control.py

from typing import FrozenSet, Optional, Set

from pip._vendor.packaging.utils import canonicalize_name

from pip._internal.exceptions import CommandError

class FormatControl:
    """Helper for managing formats from which a package can be installed."""

__slots__ = ["no_binary", "only_binary"]

def __init__(
        self,
        no_binary: Optional[Set[str]] = None,
        only_binary: Optional[Set[str]] = None,
    ) -> 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: object) -> bool:
        if not isinstance(other, self.__class__):
            return NotImplemented

if self.__slots__ != other.__slots__:
            return False

return all(getattr(self, k) == getattr(other, k) for k in self.__slots__)

def __repr__(self) -> str:
        return "{}({}, {})".format(
            self.__class__.__name__, self.no_binary, self.only_binary
        )

@staticmethod
    def handle_mutual_excludes(value: str, target: Set[str], other: Set[str]) -> None:
        if value.startswith("-"):
            raise CommandError(
                "--no-binary / --only-binary option requires 1 argument."
            )
        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: str) -> FrozenSet[str]:
        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) -> None:
        self.handle_mutual_excludes(
            ":all:",
            self.no_binary,
            self.only_binary,
        )

${this.title}

Code Editor : format_control.py