None python
# The None keyword is effectively the same as null
# Functions without a return will return None
>>> def has_no_return():
... pass
>>> has_no_return()
>>> print(has_no_return())
None
# Often, you’ll use None as part of a comparison.
# One example is when you need to check and see if some result or parameter is None.
>>> import re
>>> match = re.match(r"Goodbye", "Hello, World!")
>>> if match is None:
... print("It doesn't match.")
"It doesn't match."data type of none in python
In Python, None keyword is an object, and it is a data type of the class NoneType . We can assign None to any variable, but you can not create other NoneType objects. Note: All variables that are assigned None point to the same object. New instances of None are not createCopyright © 2021 Codeinu
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