Fix python env issues.

PythonHome/Lib/site-packages/pip/commands/__init__.py

@@ -0,0 +1,88 @@
+"""
+Package containing all pip commands
+"""
+
+
+from pip.commands.bundle import BundleCommand
+from pip.commands.completion import CompletionCommand
+from pip.commands.freeze import FreezeCommand
+from pip.commands.help import HelpCommand
+from pip.commands.list import ListCommand
+from pip.commands.search import SearchCommand
+from pip.commands.show import ShowCommand
+from pip.commands.install import InstallCommand
+from pip.commands.uninstall import UninstallCommand
+from pip.commands.unzip import UnzipCommand
+from pip.commands.zip import ZipCommand
+from pip.commands.wheel import WheelCommand
+
+
+commands = {
+    BundleCommand.name: BundleCommand,
+    CompletionCommand.name: CompletionCommand,
+    FreezeCommand.name: FreezeCommand,
+    HelpCommand.name: HelpCommand,
+    SearchCommand.name: SearchCommand,
+    ShowCommand.name: ShowCommand,
+    InstallCommand.name: InstallCommand,
+    UninstallCommand.name: UninstallCommand,
+    UnzipCommand.name: UnzipCommand,
+    ZipCommand.name: ZipCommand,
+    ListCommand.name: ListCommand,
+    WheelCommand.name: WheelCommand,
+}
+
+
+commands_order = [
+    InstallCommand,
+    UninstallCommand,
+    FreezeCommand,
+    ListCommand,
+    ShowCommand,
+    SearchCommand,
+    WheelCommand,
+    ZipCommand,
+    UnzipCommand,
+    BundleCommand,
+    HelpCommand,
+]
+
+
+def get_summaries(ignore_hidden=True, ordered=True):
+    """Yields sorted (command name, command summary) tuples."""
+
+    if ordered:
+        cmditems = _sort_commands(commands, commands_order)
+    else:
+        cmditems = commands.items()
+
+    for name, command_class in cmditems:
+        if ignore_hidden and command_class.hidden:
+            continue
+
+        yield (name, command_class.summary)
+
+
+def get_similar_commands(name):
+    """Command name auto-correct."""
+    from difflib import get_close_matches
+
+    close_commands = get_close_matches(name, commands.keys())
+
+    if close_commands:
+        guess = close_commands[0]
+    else:
+        guess = False
+
+    return guess
+
+
+def _sort_commands(cmddict, order):
+    def keyfn(key):
+        try:
+            return order.index(key[1])
+        except ValueError:
+            # unordered items should come last
+            return 0xff
+
+    return sorted(cmddict.items(), key=keyfn)