Python Keywords - A Guide with Examples

Keywords are the reserved words present in all programming languages .Python has a list of keywords that cannot be used as function names or identifiers (variable names) .Python is a dynamic language , so the list of keywords may change in future. Currently, there are 33 keywords in Python 3.3 . Trying to use any of these keywords as variables will create a Syntax Error and your Python script will not run:

>>> False = "Hello campers!"
File "<ipython-input-27-22bd50eb1a1a>", line 1
 False = "Hello campers!"
SyntaxError: can't assign to keyword

>>> break = "Hello campers!"
File ""<ipython-input-28-e668b2a47f09>"", line 1
    break = "Hello campers!"
    SyntaxError: invalid syntax
>>> class = "Hello campers!"
File "<ipython-input-29-189cc6451267>", line 1
class = "Hello campers!"
SyntaxError: invalid syntax

List of Keywords

Keyword - - - -
False class finally is return
None continue for lambda try
True def from nonlocal while
and del global not with
as elif if or yield
assert else import pass
break except in raise

All the keywords except True , False and None are in lowercase as shown above.