mirror of
https://github.com/modelscope/FunASR
synced 2025-09-15 14:48:36 +08:00
98abc0e5ac
* update * update setup * update setup * update setup * update setup * update setup * update setup * update * update * update setup
91 lines
2.7 KiB
Python
91 lines
2.7 KiB
Python
from typing import Mapping
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from typing import Optional
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from typing import Tuple
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from funasr.utils.nested_dict_action import NestedDictAction
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from funasr.utils.types import str_or_none
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class ClassChoices:
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"""Helper class to manage the options for variable objects and its configuration.
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Example:
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>>> class A:
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... def __init__(self, foo=3): pass
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>>> class B:
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... def __init__(self, bar="aaaa"): pass
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>>> choices = ClassChoices("var", dict(a=A, b=B), default="a")
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>>> import argparse
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>>> parser = argparse.ArgumentParser()
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>>> choices.add_arguments(parser)
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>>> args = parser.parse_args(["--var", "a", "--var_conf", "foo=4")
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>>> args.var
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a
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>>> args.var_conf
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{"foo": 4}
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>>> class_obj = choices.get_class(args.var)
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>>> a_object = class_obj(**args.var_conf)
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"""
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def __init__(
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self,
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name: str,
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classes: Mapping[str, type],
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type_check: type = None,
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default: str = None,
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optional: bool = False,
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):
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self.name = name
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self.base_type = type_check
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self.classes = {k.lower(): v for k, v in classes.items()}
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if "none" in self.classes or "nil" in self.classes or "null" in self.classes:
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raise ValueError('"none", "nil", and "null" are reserved.')
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if type_check is not None:
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for v in self.classes.values():
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if not issubclass(v, type_check):
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raise ValueError(f"must be {type_check.__name__}, but got {v}")
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self.optional = optional
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self.default = default
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if default is None:
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self.optional = True
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def choices(self) -> Tuple[Optional[str], ...]:
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retval = tuple(self.classes)
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if self.optional:
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return retval + (None,)
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else:
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return retval
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def get_class(self, name: Optional[str]) -> Optional[type]:
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if name is None or (self.optional and name.lower() == ("none", "null", "nil")):
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retval = None
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elif name.lower() in self.classes:
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class_obj = self.classes[name]
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retval = class_obj
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else:
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raise ValueError(
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f"--{self.name} must be one of {self.choices()}: "
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f"--{self.name} {name.lower()}"
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)
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return retval
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def add_arguments(self, parser):
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parser.add_argument(
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f"--{self.name}",
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type=lambda x: str_or_none(x.lower()),
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default=self.default,
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choices=self.choices(),
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help=f"The {self.name} type",
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)
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parser.add_argument(
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f"--{self.name}_conf",
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action=NestedDictAction,
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default=dict(),
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help=f"The keyword arguments for {self.name}",
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)
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