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    List of Python Keywords

    List of Python Programming Keywords

    Like other programming languages for Python has got certain reserved words, which can not be used as variable names.

    The most important Python keywords are the following.

    and

    FALSE

    nonlocal

    as

    finally

    not

    assert

    for

    or

    break

    from

    pass

    class

    global

    raise

    continue

    if

    return

    def

    import

    TRUE

    del

    in

    try

    elif

    is

    while

    else

    lambda

    with

    except

    None

    yield


    Let's continue to learn more in detail about keywords and their uses.

    Keyword     |  Description                            | Code example
    ---------------------------------------------------------------------------
    False,True   Data values from the data type Boolean   False == ( 5 > 3 )
                                                           True == ( 20 > 10 )
    ---------------------------------------------------------------------------
    and,or,not   Logical operators: 
                  (x and y) → both x and y must be True    x, y = True , False
                  (x or y) → either x or y must be True    (x or y) == True # True
                                                           (x and y) == False # True
                  ( not x) → x must be false               (not y) == True # True
    ---------------------------------------------------------------------------
    break        Ends loop                                while True ):     
                                                           break # no infinite loop
                                                           print"hello world" )
    --------------------------------------------------------------------------
    continue     Finishes current loop                    while True ):
                                                           continue
                                                           print"83" ) # dead code
    --------------------------------------------------------------------------
    class       to create a class                         classperson:
    --------------------------------------------------------------------------
    def         Defines a new function or                 def my_function():
                 class method.                     print("Hello from a function")
                                                           my_function()
    --------------------------------------------------------------------------
    if           Conditional program                      = 12
                                                           if x > 10:
                                                           print("YES")
    ---------------------------------------------------------------------------
    elif         Conditional program                      = 12
                                                         if x > 10:
                                                         print("YES")
                                                        else:
                                                         print("No")
    ---------------------------------------------------------------------------
    else         Conditional program                      if x > 25 : 
                                                            print"Big" )
                                                           elif x == 25 : 
                                                            print"Medium" )
                                                           else : 
                                                            print"Small" )
    -------------------------------------------------------------------------
    for        create a for loop.                    for i in [ 0 , 1 , 2 ]:
                                                             print(i)        
                                                    
    while      create a while loop.                    j=0
                                                            while j<3:
                                                            print(j)
                                                            j=j+1;
    ------------------------------------------------------------------------
    in        Checks whether element is       mobile=["Nokia""Apple","Samsung"]
               in sequence                         if "Apple" in mobile:
                                                    print("Yes")

                                                   for x in mobile:
                                                    print(x)
    --------------------------------------------------------------------------
    is        Checks whether both             x=y=["Nokia""Apple","Samsung"]
               element point to the                   print(x is y) #True
                 same object                 y = "Apple"
                                                    print(x is y#False
    --------------------------------------------------------------------------
    None       Empty value constant         def f () :
                                                 x = 2
                                                f() is None # True
    --------------------------------------------------------------------------
     lambda     Function with no name             (lambda x: x + 3)(3)
                (anonymous)                            #returns value 6
    --------------------------------------------------------------------------
    return
    Terminates function execution and passes the execution flow to the caller. 
    An optional value after the return keyword specifies the result.

        def incrementor (x) : #incrementor is function here
            return x + 1
            incrementor( 4 ) # returns 5
    ------------------------------------------------------------------------
    Python

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