Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/pip/_internal/commands/help.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 from pip._internal.cli.base_command import Command |
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2 from pip._internal.cli.status_codes import SUCCESS |
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3 from pip._internal.exceptions import CommandError |
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4 from pip._internal.utils.typing import MYPY_CHECK_RUNNING |
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5 |
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6 if MYPY_CHECK_RUNNING: |
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7 from optparse import Values |
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8 from typing import List |
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9 |
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10 |
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11 class HelpCommand(Command): |
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12 """Show help for commands""" |
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13 |
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14 usage = """ |
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15 %prog <command>""" |
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16 ignore_require_venv = True |
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17 |
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18 def run(self, options, args): |
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19 # type: (Values, List[str]) -> int |
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20 from pip._internal.commands import ( |
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21 commands_dict, |
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22 create_command, |
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23 get_similar_commands, |
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24 ) |
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25 |
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26 try: |
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27 # 'pip help' with no args is handled by pip.__init__.parseopt() |
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28 cmd_name = args[0] # the command we need help for |
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29 except IndexError: |
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30 return SUCCESS |
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31 |
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32 if cmd_name not in commands_dict: |
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33 guess = get_similar_commands(cmd_name) |
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34 |
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35 msg = [f'unknown command "{cmd_name}"'] |
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36 if guess: |
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37 msg.append(f'maybe you meant "{guess}"') |
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38 |
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39 raise CommandError(' - '.join(msg)) |
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40 |
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41 command = create_command(cmd_name) |
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42 command.parser.print_help() |
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43 |
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44 return SUCCESS |