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📁 ..
📄 __init__.py(3.65 KB)
📁 __pycache__
📄 cache.py(7.35 KB)
📄 check.py(1.65 KB)
📄 completion.py(2.89 KB)
📄 configuration.py(8.73 KB)
📄 debug.py(6.47 KB)
📄 download.py(4.79 KB)
📄 freeze.py(2.88 KB)
📄 hash.py(1.66 KB)
📄 help.py(1.11 KB)
📄 index.py(4.65 KB)
📄 install.py(27.2 KB)
📄 list.py(11.92 KB)
📄 search.py(5.56 KB)
📄 show.py(7.88 KB)
📄 uninstall.py(3.44 KB)
📄 wheel.py(6.02 KB)

Editing: configuration.py

import logging
import os
import subprocess
from optparse import Values
from typing import Any, List, Optional

from pip._internal.cli.base_command import Command
from pip._internal.cli.status_codes import ERROR, SUCCESS
from pip._internal.configuration import (
    Configuration,
    Kind,
    get_configuration_files,
    kinds,
)
from pip._internal.exceptions import PipError
from pip._internal.utils.logging import indent_log
from pip._internal.utils.misc import get_prog, write_output

logger = logging.getLogger(__name__)

class ConfigurationCommand(Command):
    """
    Manage local and global configuration.

Subcommands:

- list: List the active configuration (or from the file specified)
    - edit: Edit the configuration file in an editor
    - get: Get the value associated with name
    - set: Set the name=value
    - unset: Unset the value associated with name
    - debug: List the configuration files and values defined under them

If none of --user, --global and --site are passed, a virtual
    environment configuration file is used if one is active and the file
    exists. Otherwise, all modifications happen to the user file by
    default.
    """

ignore_require_venv = True
    usage = """
        %prog [<file-option>] list
        %prog [<file-option>] [--editor <editor-path>] edit

%prog [<file-option>] get name
        %prog [<file-option>] set name value
        %prog [<file-option>] unset name
        %prog [<file-option>] debug
    """

def add_options(self) -> None:
        self.cmd_opts.add_option(
            "--editor",
            dest="editor",
            action="store",
            default=None,
            help=(
                "Editor to use to edit the file. Uses VISUAL or EDITOR "
                "environment variables if not provided."
            ),
        )

self.cmd_opts.add_option(
            "--global",
            dest="global_file",
            action="store_true",
            default=False,
            help="Use the system-wide configuration file only",
        )

self.cmd_opts.add_option(
            "--user",
            dest="user_file",
            action="store_true",
            default=False,
            help="Use the user configuration file only",
        )

self.cmd_opts.add_option(
            "--site",
            dest="site_file",
            action="store_true",
            default=False,
            help="Use the current environment configuration file only",
        )

self.parser.insert_option_group(0, self.cmd_opts)

def run(self, options: Values, args: List[str]) -> int:
        handlers = {
            "list": self.list_values,
            "edit": self.open_in_editor,
            "get": self.get_name,
            "set": self.set_name_value,
            "unset": self.unset_name,
            "debug": self.list_config_values,
        }

# Determine action
        if not args or args[0] not in handlers:
            logger.error(
                "Need an action (%s) to perform.",
                ", ".join(sorted(handlers)),
            )
            return ERROR

action = args[0]

# Determine which configuration files are to be loaded
        #    Depends on whether the command is modifying.
        try:
            load_only = self._determine_file(
                options, need_value=(action in ["get", "set", "unset", "edit"])
            )
        except PipError as e:
            logger.error(e.args[0])
            return ERROR

# Load a new configuration
        self.configuration = Configuration(
            isolated=options.isolated_mode, load_only=load_only
        )
        self.configuration.load()

# Error handling happens here, not in the action-handlers.
        try:
            handlers[action](options, args[1:])
        except PipError as e:
            logger.error(e.args[0])
            return ERROR

return SUCCESS

def _determine_file(self, options: Values, need_value: bool) -> Optional[Kind]:
        file_options = [
            key
            for key, value in (
                (kinds.USER, options.user_file),
                (kinds.GLOBAL, options.global_file),
                (kinds.SITE, options.site_file),
            )
            if value
        ]

if not file_options:
            if not need_value:
                return None
            # Default to user, unless there's a site file.
            elif any(
                os.path.exists(site_config_file)
                for site_config_file in get_configuration_files()[kinds.SITE]
            ):
                return kinds.SITE
            else:
                return kinds.USER
        elif len(file_options) == 1:
            return file_options[0]

raise PipError(
            "Need exactly one file to operate upon "
            "(--user, --site, --global) to perform."
        )

def list_values(self, options: Values, args: List[str]) -> None:
        self._get_n_args(args, "list", n=0)

for key, value in sorted(self.configuration.items()):
            write_output("%s=%r", key, value)

def get_name(self, options: Values, args: List[str]) -> None:
        key = self._get_n_args(args, "get [name]", n=1)
        value = self.configuration.get_value(key)

write_output("%s", value)

def set_name_value(self, options: Values, args: List[str]) -> None:
        key, value = self._get_n_args(args, "set [name] [value]", n=2)
        self.configuration.set_value(key, value)

self._save_configuration()

def unset_name(self, options: Values, args: List[str]) -> None:
        key = self._get_n_args(args, "unset [name]", n=1)
        self.configuration.unset_value(key)

self._save_configuration()

def list_config_values(self, options: Values, args: List[str]) -> None:
        """List config key-value pairs across different config files"""
        self._get_n_args(args, "debug", n=0)

self.print_env_var_values()
        # Iterate over config files and print if they exist, and the
        # key-value pairs present in them if they do
        for variant, files in sorted(self.configuration.iter_config_files()):
            write_output("%s:", variant)
            for fname in files:
                with indent_log():
                    file_exists = os.path.exists(fname)
                    write_output("%s, exists: %r", fname, file_exists)
                    if file_exists:
                        self.print_config_file_values(variant)

def print_config_file_values(self, variant: Kind) -> None:
        """Get key-value pairs from the file of a variant"""
        for name, value in self.configuration.get_values_in_config(variant).items():
            with indent_log():
                write_output("%s: %s", name, value)

def print_env_var_values(self) -> None:
        """Get key-values pairs present as environment variables"""
        write_output("%s:", "env_var")
        with indent_log():
            for key, value in sorted(self.configuration.get_environ_vars()):
                env_var = f"PIP_{key.upper()}"
                write_output("%s=%r", env_var, value)

def open_in_editor(self, options: Values, args: List[str]) -> None:
        editor = self._determine_editor(options)

fname = self.configuration.get_file_to_edit()
        if fname is None:
            raise PipError("Could not determine appropriate file.")

try:
            subprocess.check_call([editor, fname])
        except subprocess.CalledProcessError as e:
            raise PipError(
                "Editor Subprocess exited with exit code {}".format(e.returncode)
            )

def _get_n_args(self, args: List[str], example: str, n: int) -> Any:
        """Helper to make sure the command got the right number of arguments"""
        if len(args) != n:
            msg = (
                "Got unexpected number of arguments, expected {}. "
                '(example: "{} config {}")'
            ).format(n, get_prog(), example)
            raise PipError(msg)

if n == 1:
            return args[0]
        else:
            return args

def _save_configuration(self) -> None:
        # We successfully ran a modifying command. Need to save the
        # configuration.
        try:
            self.configuration.save()
        except Exception:
            logger.exception(
                "Unable to save configuration. Please report this as a bug."
            )
            raise PipError("Internal Error.")

def _determine_editor(self, options: Values) -> str:
        if options.editor is not None:
            return options.editor
        elif "VISUAL" in os.environ:
            return os.environ["VISUAL"]
        elif "EDITOR" in os.environ:
            return os.environ["EDITOR"]
        else:
            raise PipError("Could not determine editor to use.")

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Editing: configuration.py

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