Mercurial > repos > guerler > hhblits
comparison lib/python3.8/site-packages/pip/_internal/cli/main.py @ 0:9e54283cc701 draft
"planemo upload commit d12c32a45bcd441307e632fca6d9af7d60289d44"
| author | guerler |
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| date | Mon, 27 Jul 2020 03:47:31 -0400 |
| parents | |
| children |
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| -1:000000000000 | 0:9e54283cc701 |
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| 1 """Primary application entrypoint. | |
| 2 """ | |
| 3 from __future__ import absolute_import | |
| 4 | |
| 5 import locale | |
| 6 import logging | |
| 7 import os | |
| 8 import sys | |
| 9 | |
| 10 from pip._internal.cli.autocompletion import autocomplete | |
| 11 from pip._internal.cli.main_parser import parse_command | |
| 12 from pip._internal.commands import create_command | |
| 13 from pip._internal.exceptions import PipError | |
| 14 from pip._internal.utils import deprecation | |
| 15 from pip._internal.utils.typing import MYPY_CHECK_RUNNING | |
| 16 | |
| 17 if MYPY_CHECK_RUNNING: | |
| 18 from typing import List, Optional | |
| 19 | |
| 20 logger = logging.getLogger(__name__) | |
| 21 | |
| 22 | |
| 23 # Do not import and use main() directly! Using it directly is actively | |
| 24 # discouraged by pip's maintainers. The name, location and behavior of | |
| 25 # this function is subject to change, so calling it directly is not | |
| 26 # portable across different pip versions. | |
| 27 | |
| 28 # In addition, running pip in-process is unsupported and unsafe. This is | |
| 29 # elaborated in detail at | |
| 30 # https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program. | |
| 31 # That document also provides suggestions that should work for nearly | |
| 32 # all users that are considering importing and using main() directly. | |
| 33 | |
| 34 # However, we know that certain users will still want to invoke pip | |
| 35 # in-process. If you understand and accept the implications of using pip | |
| 36 # in an unsupported manner, the best approach is to use runpy to avoid | |
| 37 # depending on the exact location of this entry point. | |
| 38 | |
| 39 # The following example shows how to use runpy to invoke pip in that | |
| 40 # case: | |
| 41 # | |
| 42 # sys.argv = ["pip", your, args, here] | |
| 43 # runpy.run_module("pip", run_name="__main__") | |
| 44 # | |
| 45 # Note that this will exit the process after running, unlike a direct | |
| 46 # call to main. As it is not safe to do any processing after calling | |
| 47 # main, this should not be an issue in practice. | |
| 48 | |
| 49 def main(args=None): | |
| 50 # type: (Optional[List[str]]) -> int | |
| 51 if args is None: | |
| 52 args = sys.argv[1:] | |
| 53 | |
| 54 # Configure our deprecation warnings to be sent through loggers | |
| 55 deprecation.install_warning_logger() | |
| 56 | |
| 57 autocomplete() | |
| 58 | |
| 59 try: | |
| 60 cmd_name, cmd_args = parse_command(args) | |
| 61 except PipError as exc: | |
| 62 sys.stderr.write("ERROR: %s" % exc) | |
| 63 sys.stderr.write(os.linesep) | |
| 64 sys.exit(1) | |
| 65 | |
| 66 # Needed for locale.getpreferredencoding(False) to work | |
| 67 # in pip._internal.utils.encoding.auto_decode | |
| 68 try: | |
| 69 locale.setlocale(locale.LC_ALL, '') | |
| 70 except locale.Error as e: | |
| 71 # setlocale can apparently crash if locale are uninitialized | |
| 72 logger.debug("Ignoring error %s when setting locale", e) | |
| 73 command = create_command(cmd_name, isolated=("--isolated" in cmd_args)) | |
| 74 | |
| 75 return command.main(cmd_args) |