43 lines
1.0 KiB
Python
43 lines
1.0 KiB
Python
"""Miscellaneous functions."""
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from __future__ import annotations
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from typing import Any
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def to_list(value: Any | list[Any] | None) -> list[Any]:
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"""
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Convert value into a list.
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- if value is ``None`` then return an empty list
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- if value is already a list then return it unchanged
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- if value is not a list then return ``[value]``
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:param value: Value that should be converted to a list.
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:type value: Any | list[Any] | None
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:return: List with the value as an element.
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:rtype: list[Any]
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"""
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if value is None:
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return []
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if isinstance(value, list):
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return value
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return [value]
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def to_list_of_strings(value: Any | list[Any] | None) -> list[str]:
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"""
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Convert given list or single value to list of strings.
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The ``value`` is first converted to a list and then ``str(item)`` is run on
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each of its item.
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:param value: Value to convert.
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:type value: Any | list[Any] | None
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:return: List of strings.
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:rtype: list[str]
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"""
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return [str(x) for x in to_list(value)]
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