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https://github.com/clearml/clearml
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54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
import base64
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from distutils.util import strtobool
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from typing import Union, Optional, Any, TypeVar, Callable, Tuple
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import six
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try:
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from typing import Text
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except ImportError:
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# windows conda-less hack
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Text = Any
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ConverterType = TypeVar("ConverterType", bound=Callable[[Any], Any])
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def base64_to_text(value):
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# type: (Any) -> Text
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return base64.b64decode(value).decode("utf-8")
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def text_to_bool(value):
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# type: (Text) -> bool
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return bool(strtobool(value))
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def any_to_bool(value):
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# type: (Optional[Union[int, float, Text]]) -> bool
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if isinstance(value, six.text_type):
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return text_to_bool(value)
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return bool(value)
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def or_(*converters, **kwargs):
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# type: (ConverterType, Tuple[Exception, ...]) -> ConverterType
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"""
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Wrapper that implements an "optional converter" pattern. Allows specifying a converter
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for which a set of exceptions is ignored (and the original value is returned)
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:param converters: A converter callable
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:param exceptions: A tuple of exception types to ignore
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"""
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# noinspection PyUnresolvedReferences
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exceptions = kwargs.get("exceptions", (ValueError, TypeError))
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def wrapper(value):
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for converter in converters:
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try:
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return converter(value)
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except exceptions:
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pass
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return value
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return wrapper
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