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authorrahulp132020-03-17 14:55:41 +0530
committerrahulp132020-03-17 14:55:41 +0530
commit296443137f4288cb030e92859ccfbe3204bc1088 (patch)
treeca4798c2da1e7244edc3bc108d81b462b537aea2 /lib/python2.7/site-packages/pip/commands/help.py
parent0db48f6533517ecebfd9f0693f89deca28408b76 (diff)
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Diffstat (limited to 'lib/python2.7/site-packages/pip/commands/help.py')
-rw-r--r--lib/python2.7/site-packages/pip/commands/help.py35
1 files changed, 35 insertions, 0 deletions
diff --git a/lib/python2.7/site-packages/pip/commands/help.py b/lib/python2.7/site-packages/pip/commands/help.py
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+++ b/lib/python2.7/site-packages/pip/commands/help.py
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+from __future__ import absolute_import
+
+from pip.basecommand import Command, SUCCESS
+from pip.exceptions import CommandError
+
+
+class HelpCommand(Command):
+ """Show help for commands"""
+ name = 'help'
+ usage = """
+ %prog <command>"""
+ summary = 'Show help for commands.'
+
+ def run(self, options, args):
+ from pip.commands import commands_dict, get_similar_commands
+
+ try:
+ # 'pip help' with no args is handled by pip.__init__.parseopt()
+ cmd_name = args[0] # the command we need help for
+ except IndexError:
+ return SUCCESS
+
+ if cmd_name not in commands_dict:
+ guess = get_similar_commands(cmd_name)
+
+ msg = ['unknown command "%s"' % cmd_name]
+ if guess:
+ msg.append('maybe you meant "%s"' % guess)
+
+ raise CommandError(' - '.join(msg))
+
+ command = commands_dict[cmd_name]()
+ command.parser.print_help()
+
+ return SUCCESS