Michael Ströder wrote:
> For tracking the cause of a UnicodeWarning I'd like to make the Python
> interpreter to raise an UnicodeError exception with full stack trace. Is
> there a short trick to achieve this?
You can control warning behaviour with the -W commandline option:
$ cat unicodewarning_demo.py
# -*- coding: utf-8 -*-
def g():
"ä" == u"ä"
def f(n=3):
if n:
f(n-1)
else:
g()
if __name__ == "__main__":
f()
$ python unicodewarning_demo.py
unicodewarning_demo.py:4: UnicodeWarning: Unicode equal comparison failed to
convert both arguments to Unicode - interpreting them as being unequal
"ä" == u"ä"
$ python -W error::UnicodeWarning unicodewarning_demo.py
Traceback (most recent call last):
File "unicodewarning_demo.py", line 13, in <module>
f()
File "unicodewarning_demo.py", line 8, in f
f(n-1)
File "unicodewarning_demo.py", line 8, in f
f(n-1)
File "unicodewarning_demo.py", line 8, in f
f(n-1)
File "unicodewarning_demo.py", line 10, in f
g()
File "unicodewarning_demo.py", line 4, in g
"ä" == u"ä"
UnicodeWarning: Unicode equal comparison failed to convert both arguments to
Unicode - interpreting them as being unequal
$
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