check if a variable is none python code example
Example 1: python 2.7 check if variable is none
>>> NoneType = type(None)
>>> x = None
>>> type(x) == NoneType
True
>>> isinstance(x, NoneType)
True
Example 2: pythonhow to check if value is None
# How to check if a variable is None
var = None
# variable is None in this example
if var is None:
# if var is None
print("var is None")
# code...
else:
# if var is not None
print("var is not None")
# code...
# result of above example "var is None"
var = "sometext"
# variable is not None in this example
if var is None:
# if var is None
print("var is None")
# code...
else:
# if var is not None
print("var is not None")
# code...
# result of above example "var is not None"