Old engine for Continuous Time Bayesian Networks. Superseded by reCTBN. 🐍
https://github.com/madlabunimib/PyCTBN
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105 lines
3.2 KiB
105 lines
3.2 KiB
4 years ago
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"""
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A module that implements tooling to enable easy warnings about deprecations.
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"""
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# The following comment should be removed at some point in the future.
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# mypy: disallow-untyped-defs=False
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from __future__ import absolute_import
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import logging
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import warnings
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from pip._vendor.packaging.version import parse
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from pip import __version__ as current_version
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from pip._internal.utils.typing import MYPY_CHECK_RUNNING
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if MYPY_CHECK_RUNNING:
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from typing import Any, Optional
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DEPRECATION_MSG_PREFIX = "DEPRECATION: "
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class PipDeprecationWarning(Warning):
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pass
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_original_showwarning = None # type: Any
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# Warnings <-> Logging Integration
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def _showwarning(message, category, filename, lineno, file=None, line=None):
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if file is not None:
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if _original_showwarning is not None:
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_original_showwarning(
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message, category, filename, lineno, file, line,
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)
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elif issubclass(category, PipDeprecationWarning):
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# We use a specially named logger which will handle all of the
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# deprecation messages for pip.
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logger = logging.getLogger("pip._internal.deprecations")
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logger.warning(message)
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else:
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_original_showwarning(
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message, category, filename, lineno, file, line,
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)
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def install_warning_logger():
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# type: () -> None
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# Enable our Deprecation Warnings
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warnings.simplefilter("default", PipDeprecationWarning, append=True)
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global _original_showwarning
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if _original_showwarning is None:
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_original_showwarning = warnings.showwarning
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warnings.showwarning = _showwarning
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def deprecated(reason, replacement, gone_in, issue=None):
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# type: (str, Optional[str], Optional[str], Optional[int]) -> None
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"""Helper to deprecate existing functionality.
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reason:
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Textual reason shown to the user about why this functionality has
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been deprecated.
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replacement:
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Textual suggestion shown to the user about what alternative
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functionality they can use.
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gone_in:
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The version of pip does this functionality should get removed in.
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Raises errors if pip's current version is greater than or equal to
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this.
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issue:
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Issue number on the tracker that would serve as a useful place for
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users to find related discussion and provide feedback.
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Always pass replacement, gone_in and issue as keyword arguments for clarity
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at the call site.
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"""
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# Construct a nice message.
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# This is eagerly formatted as we want it to get logged as if someone
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# typed this entire message out.
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sentences = [
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(reason, DEPRECATION_MSG_PREFIX + "{}"),
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(gone_in, "pip {} will remove support for this functionality."),
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(replacement, "A possible replacement is {}."),
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(issue, (
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"You can find discussion regarding this at "
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"https://github.com/pypa/pip/issues/{}."
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)),
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]
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message = " ".join(
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template.format(val) for val, template in sentences if val is not None
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)
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# Raise as an error if it has to be removed.
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if gone_in is not None and parse(current_version) >= parse(gone_in):
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raise PipDeprecationWarning(message)
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warnings.warn(message, category=PipDeprecationWarning, stacklevel=2)
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