32 lines
976 B
Python
32 lines
976 B
Python
import argparse
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import contextlib
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import io
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import utils
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class ArgumentParser:
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def __init__(self, command, description):
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self.parser = argparse.ArgumentParser(
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command, description=description, exit_on_error=False
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)
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def print_help(self):
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help_buffer = io.StringIO()
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with contextlib.redirect_stdout(help_buffer):
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self.parser.print_help()
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return help_buffer.getvalue().replace(" and exit", "")
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def add_argument(self, *args, **kwargs):
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self.parser.add_argument(*args, **kwargs)
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async def parse_args(self, message, tokens) -> argparse.Namespace | None:
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try:
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with contextlib.redirect_stdout(io.StringIO()):
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args = self.parser.parse_args(tokens[1:])
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return args
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except SystemExit:
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await utils.reply(message, f"```\n{self.print_help()}```")
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except Exception as e:
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await utils.reply(message, f"`{e}`")
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