Example Python return null (None).
def NoOne(x): print(x) return None print(NoOne("Function Called"))
Note: There is no such term as “return null” in Python. Every function returns some value (unless it raises an exception). If no explicit return statement is used, Python treats it as returning None
To literally return ‘nothing’ use
pass, which basically returns the value None if put in a function(Functions must return a value, so why not ‘nothing’). You can do this explicitly and
return None yourself though.
if x>1: return(x) else: pass
if x>1: return(x) else: return None
It’s worth noting that
None is not the same as an empty string (
''), an empty list (
), or a zero value (
0). These are all valid values in Python that represent something specific.
None is used specifically to represent a missing or undefined value.
Comment if you have any doubts or suggestions on this Python return topic.
Note: IDE: PyCharm 2021.3.3 (Community Edition)
All Python Examples are in Python 3, so Maybe its different from python 2 or upgraded versions.