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bpo-39912: Raise appropriate exceptions in filterwarnings() and simplefilter() (GH-18878)

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Rémi Lapeyre 2023-12-01 12:17:47 +01:00 • committed by GitHub
parent 847e4fe0e8
commit a65a3d4806
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3 changed files with 43 additions and 12 deletions
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30
Lib/warnings.py
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@ -139,14 +139,18 @@ def filterwarnings(action, message="", category=Warning, module="", lineno=0,
'lineno' -- an integer line number, 0 matches all warnings
'append' -- if true, append to the list of filters
"""
assert action in ("error", "ignore", "always", "default", "module",
"once"), "invalid action: %r" % (action,)
assert isinstance(message, str), "message must be a string"
assert isinstance(category, type), "category must be a class"
assert issubclass(category, Warning), "category must be a Warning subclass"
assert isinstance(module, str), "module must be a string"
assert isinstance(lineno, int) and lineno >= 0, \
"lineno must be an int >= 0"
if action not in {"error", "ignore", "always", "default", "module", "once"}:
raise ValueError(f"invalid action: {action!r}")
if not isinstance(message, str):
raise TypeError("message must be a string")
if not isinstance(category, type) or not issubclass(category, Warning):
raise TypeError("category must be a Warning subclass")
if not isinstance(module, str):
raise TypeError("module must be a string")
if not isinstance(lineno, int):
raise TypeError("lineno must be an int")
if lineno < 0:
raise ValueError("lineno must be an int >= 0")
if message or module:
import re
@ -172,10 +176,12 @@ def simplefilter(action, category=Warning, lineno=0, append=False):
'lineno' -- an integer line number, 0 matches all warnings
'append' -- if true, append to the list of filters
"""
assert action in ("error", "ignore", "always", "default", "module",
"once"), "invalid action: %r" % (action,)
assert isinstance(lineno, int) and lineno >= 0, \
"lineno must be an int >= 0"
if action not in {"error", "ignore", "always", "default", "module", "once"}:
raise ValueError(f"invalid action: {action!r}")
if not isinstance(lineno, int):
raise TypeError("lineno must be an int")
if lineno < 0:
raise ValueError("lineno must be an int >= 0")
_add_filter(action, None, category, None, lineno, append=append)
def _add_filter(*item, append):