How can i compare a string which is non null and empty

[Georg Brandl]

Plissken.s at gmail.com schrieb:
> Hi,
> 
> how can i compare a string which is non null and empty?
> 
> 
> i look thru the string methods here, but cant find one which does it?
> 
> http://docs.python.org/lib/string-methods.html#string-methods
> 
> In java,I do this:
> if (str != null) && (!str.equals("")) ....
> 
> how can i do that in python?

Strings cannot be "null" in Python.

If you want to check if a string is not empty, use "if str".

This also includes the case that "str" may not only be an empty
string, but also None.

Georg