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# MIT License
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# Copyright (c) 2022 GT4SD team
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"""Parsing utilities."""
import argparse
import ast
from typing import Union
[docs]def str2bool(s: Union[str, bool]) -> bool:
"""Convert a string into a bool.
Args:
s: a string representation of a boolean.
Raises:
argparse.ArgumentTypeError: in case the conversion is failing.
Returns:
the converted value.
"""
if isinstance(s, bool):
return s
if s.lower() in ("yes", "true", "t", "y", "1"):
return True
elif s.lower() in ("no", "false", "f", "n", "0"):
return False
else:
raise argparse.ArgumentTypeError("Boolean value expected.")
[docs]def convert_string_to_class(s: str):
"""Convert a string into a python object.
Fallback to ast in case of unexpected strings.
Args:
s: a string.
Returns:
the converted python object.
"""
if s.lower() == "true":
return True
elif s.lower() == "false":
return False
elif s.lower() == "none":
return None
elif s:
try:
return ast.literal_eval(s)
except (ValueError, SyntaxError):
return s