Monday, July 29, 2019

Python - Keywords


Python Keywords
Keywords are the reserved words and we cannot use a keyword as variable name, function name or an Identifier. Almost 33 keywords are available in Python which is quite lesser than other languages like Java, C++ etc.

Method
Description
and
A logical operator
as
To create an alias
assert
For debugging
break
To break out of a loop
class
To define a class
continue
To continue to the next iteration of a loop
def
To define a function
del
To delete an object
elif
Used in conditional statements, same as else if
else
Used in conditional statements
except
Used with exceptions, what to do when an exception occurs
False
Boolean value, result of comparison operations
finally
Used with exceptions, a block of code that will be executed no matter if there is an exception or not
for
To create a for loop
from
To import specific parts of a module
global
To declare a global variable
if
To make a conditional statement
import
To import a module
To check if a value is present in a list, tuple, etc.
To test if two variables are equal
lambda
To create an anonymous function
None
Represents a null value
nonlocal
To declare a non-local variable
A logical operator
or
A logical operator
pass
A null statement, a statement that will do nothing
raise
To raise an exception
return
To exit a function and return a value
True
Boolean value, result of comparison operations
try
To make a try...except statement
while
To create a while loop
with
Used to simplify exception handling
yield
To end a function, returns a generator



                                                  List of Key Words

There are some basic rules that need to be followed with the keywords.No identifiers should have the same name as any of the keywords.Names that begin with __ underscore should not be used.







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