is is not the same as equal in Python
1st of December 2006
Don't do the silly misstake that I did today. I improved my code to better support unicode by replacing all plain strings with unicode strings. In there I had code that looked like this:
if type_ is 'textarea':
do something
do something
This was changed to:
if type_ is u'textarea':
do something
do something
And it no longer matched since type_ was a normal ascii string. The correct wat to do these things is like this:
if type_ == u'textarea':
do something
elif type_ is None:
do something else
do something
elif type_ is None:
do something else
Remember:
>>> "peter" is u"peter"
False
>>> "peter" == u"peter"
True
>>> None is None
True
>>> None == None
True
False
>>> "peter" == u"peter"
True
>>> None is None
True
>>> None == None
True
Comment
Show all 10 commentsCommenting is currently disabled in Mobile version