Fullscreen eingestellt.

.venv/Lib/site-packages/pip/_internal/vcs/bazaar.py

@@ -44,13 +44,13 @@ class Bazaar(VersionControl):
             display_path(dest),
         )
         if verbosity <= 0:
-            flag = "--quiet"
+            flags = ["--quiet"]
         elif verbosity == 1:
-            flag = ""
+            flags = []
         else:
-            flag = f"-{'v'*verbosity}"
+            flags = [f"-{'v'*verbosity}"]
         cmd_args = make_command(
-            "checkout", "--lightweight", flag, rev_options.to_args(), url, dest
+            "checkout", "--lightweight", *flags, rev_options.to_args(), url, dest
         )
         self.run_command(cmd_args)
 

.venv/Lib/site-packages/pip/_internal/vcs/git.py

@@ -4,6 +4,7 @@ import pathlib
 import re
 import urllib.parse
 import urllib.request
+from dataclasses import replace
 from typing import List, Optional, Tuple
 
 from pip._internal.exceptions import BadCommand, InstallationError
@@ -217,7 +218,7 @@ class Git(VersionControl):
 
         if sha is not None:
             rev_options = rev_options.make_new(sha)
-            rev_options.branch_name = rev if is_branch else None
+            rev_options = replace(rev_options, branch_name=(rev if is_branch else None))
 
             return rev_options
 

.venv/Lib/site-packages/pip/_internal/vcs/subversion.py

@@ -288,12 +288,12 @@ class Subversion(VersionControl):
             display_path(dest),
         )
         if verbosity <= 0:
-            flag = "--quiet"
+            flags = ["--quiet"]
         else:
-            flag = ""
+            flags = []
         cmd_args = make_command(
             "checkout",
-            flag,
+            *flags,
             self.get_remote_call_options(),
             rev_options.to_args(),
             url,

.venv/Lib/site-packages/pip/_internal/vcs/versioncontrol.py

@@ -5,13 +5,14 @@ import os
 import shutil
 import sys
 import urllib.parse
+from dataclasses import dataclass, field
 from typing import (
-    TYPE_CHECKING,
     Any,
     Dict,
     Iterable,
     Iterator,
     List,
+    Literal,
     Mapping,
     Optional,
     Tuple,
@@ -37,14 +38,6 @@ from pip._internal.utils.subprocess import (
     format_command_args,
     make_command,
 )
-from pip._internal.utils.urls import get_url_scheme
-
-if TYPE_CHECKING:
-    # Literal was introduced in Python 3.8.
-    #
-    # TODO: Remove `if TYPE_CHECKING` when dropping support for Python 3.7.
-    from typing import Literal
-
 
 __all__ = ["vcs"]
 
@@ -58,8 +51,8 @@ def is_url(name: str) -> bool:
     """
     Return true if the name looks like a URL.
     """
-    scheme = get_url_scheme(name)
-    if scheme is None:
+    scheme = urllib.parse.urlsplit(name).scheme
+    if not scheme:
         return False
     return scheme in ["http", "https", "file", "ftp"] + vcs.all_schemes
 
@@ -121,34 +114,22 @@ class RemoteNotValidError(Exception):
         self.url = url
 
 
+@dataclass(frozen=True)
 class RevOptions:
-
     """
     Encapsulates a VCS-specific revision to install, along with any VCS
     install options.
 
-    Instances of this class should be treated as if immutable.
+    Args:
+        vc_class: a VersionControl subclass.
+        rev: the name of the revision to install.
+        extra_args: a list of extra options.
     """
 
-    def __init__(
-        self,
-        vc_class: Type["VersionControl"],
-        rev: Optional[str] = None,
-        extra_args: Optional[CommandArgs] = None,
-    ) -> None:
-        """
-        Args:
-          vc_class: a VersionControl subclass.
-          rev: the name of the revision to install.
-          extra_args: a list of extra options.
-        """
-        if extra_args is None:
-            extra_args = []
-
-        self.extra_args = extra_args
-        self.rev = rev
-        self.vc_class = vc_class
-        self.branch_name: Optional[str] = None
+    vc_class: Type["VersionControl"]
+    rev: Optional[str] = None
+    extra_args: CommandArgs = field(default_factory=list)
+    branch_name: Optional[str] = None
 
     def __repr__(self) -> str:
         return f"<RevOptions {self.vc_class.name}: rev={self.rev!r}>"
@@ -362,7 +343,7 @@ class VersionControl:
           rev: the name of a revision to install.
           extra_args: a list of extra options.
         """
-        return RevOptions(cls, rev, extra_args=extra_args)
+        return RevOptions(cls, rev, extra_args=extra_args or [])
 
     @classmethod
     def _is_local_repository(cls, repo: str) -> bool:
@@ -660,6 +641,8 @@ class VersionControl:
                 log_failed_cmd=log_failed_cmd,
                 stdout_only=stdout_only,
             )
+        except NotADirectoryError:
+            raise BadCommand(f"Cannot find command {cls.name!r} - invalid PATH")
         except FileNotFoundError:
             # errno.ENOENT = no such file or directory
             # In other words, the VCS executable isn't available