Mercurial > repos > bcclaywell > argo_navis

annotate venv/lib/python2.7/site-packages/pip/commands/help.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 from __future__ import absolute_import
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2
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3 from pip.basecommand import Command, SUCCESS
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4 from pip.exceptions import CommandError
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5
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6
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7 class HelpCommand(Command):
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8 """Show help for commands"""
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9 name = 'help'
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10 usage = """
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11 %prog <command>"""
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12 summary = 'Show help for commands.'
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13
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14 def run(self, options, args):
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15 from pip.commands import commands_dict, get_similar_commands
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16
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17 try:
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18 # 'pip help' with no args is handled by pip.__init__.parseopt()
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19 cmd_name = args[0] # the command we need help for
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20 except IndexError:
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21 return SUCCESS
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22
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23 if cmd_name not in commands_dict:
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24 guess = get_similar_commands(cmd_name)
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25
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26 msg = ['unknown command "%s"' % cmd_name]
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27 if guess:
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28 msg.append('maybe you meant "%s"' % guess)
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30 raise CommandError(' - '.join(msg))
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32 command = commands_dict[cmd_name]()
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33 command.parser.print_help()
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34
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35 return SUCCESS