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#!/usr/bin/env python3
"""Miscellaneous diagnostics for the import system"""
import sys
import argparse
from pprint import pprint
def _dump_state(args):
print(sys.version)
for name in args.attributes:
print("sys.{}:".format(name))
pprint(getattr(sys, name))
def _add_dump_args(cmd):
cmd.add_argument("attributes", metavar="ATTR", nargs="+",
help="sys module attribute to display")
COMMANDS = (
("dump", "Dump import state", _dump_state, _add_dump_args),
)
def _make_parser():
parser = argparse.ArgumentParser()
sub = parser.add_subparsers(title="Commands")
for name, description, implementation, add_args in COMMANDS:
cmd = sub.add_parser(name, help=description)
cmd.set_defaults(command=implementation)
add_args(cmd)
return parser
def main(args):
parser = _make_parser()
args = parser.parse_args(args)
return args.command(args)
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))
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