Additional features are discussed in this article.

1. setitem (ob, pos, val) : — This function is used to assign a value at a specific position in a container.
Operation — ob [pos] = val

2. delitem (ob, pos) : — This function is used to remove a value at a specific position in a container.
Operation — del ob [pos]

3. getitem (ob, pos) : — This function is used to access to a value at a specific position in a container.
Operation — Ob [pos]

# Python code to demonstrate how it works # setitem (), delitem () and getitem ()    # import operator module import operator   # Initializing list li = [ 1 , 5 , 6 , 7 , 8 ]   # print the original list print ( "The original list is:" , end = "") for i in range ( 0 , len (li)): print (li [i], end = " " )    print ( "" )    # using setitem () to assign 3 in 4th position operator.setitem (li, 3 , 3 )   # print the modified list after setitem () print ( "The modified list after setitem () is: " , end = " ") for i in range ( 0 , len (li)): print (li [i], end = "" )    print ( "" )   # using delitem () to remove the value in the second index operator .delitem (li, 1 )    # print the modified list after delitem () print ( "The modified list after delitem () is:" , end = "") for i in range ( 0 , len (li)): print (li [i], end = "" )   print ( "" )   # using getitem () to access to 4th element print ( "The 4th element of list is:" , end = " ") print (operator.getitem (li, 3 ))

Output:

 The original list is: 1 5 6 7 8 The modified list after setitem () is: 1 5 6 3 8 The modified list after delitem () is: 1 6 3 8 The 4th element of list is: 8 

4. setitem (ob, slice (a, b), vals) : — This function is used to set values ​​within a specific range in a container.
Operation — obj [a: b] = vals

5. delitem (ob, slice (a, b)) : — this function is used to remove values ​​from a specific range in a container.
Operation — del obj [a: b]

6. getitem (ob, slice (a, b)) : — this function is used to access values ​​within a specific range in a container.
Operation — object [a: b]

# Python code to demonstrate how it works # setitem (), delitem () and getitem ()   # import operator module import operator   # Initializing list li = [ 1 , 5 , 6 , 7 , 8 ]    # print original list print ( "The original list is:" , end = "") for i in range ( 0 , len (li)): print (li [i], end = "" )   print ( " " )   # using setitem () to assign 2,3,4 to the 2nd, 3rd and 4th index operator.setitem (li, slice ( 1 , 4 ), [ 2 , 3 , 4 ])    # print the modified list after setitem () print ( " The modified list after setitem () is: " , end = " ") for i in range ( 0 , len (li)): print (li [i], end = "" )   print ( "" )   # using delitem () to remove a value in 3rd and 4th indices operator.delitem (li, slice ( 2 , 4 ))   # prints the modified list after delitem () print ( "The modified list after delitem () is:" , end = "") for i in range ( 0 , len (li)): print (li [i], end = "" )   print ( " " )    # using getitem () to access 1st and 2nd elements print ( "The 1st and 2nd element of list is:" , end = "") print (operator.getitem (li, slice ( 0 , 2 )))

Output:

 The original list is: 1 5 6 7 8 The modified list after setitem () is: 1 2 3 4 8 The modified list after delitem () is: 1 2 8 The 1st and 2nd element of list is: [1, 2] 

7. concat (ob1, obj2) : — This function is used to merge two containers.
Operation — obj1 + obj2

8. contains (ob1, obj2) : — This function is used to check for obj2 in obj1 .
Operation — obj2 in obj1

# Python code to demonstrate how it works # concat () and contains ()   # import operator module import operator   # Initializing line 1 s1 = "geeksfor"    # Initializing line 2 s2 = "geeks"   # using concat () to concatenate two lines print ( "The concatenated string is: " , end = " ") print (operator.concat (s1, s2))   # using contains () to check if s1 s2 contains if (operator.contains (s1, s2)):   print ( "geeksfor contains geeks" ) else : print ( " geeksfor does not contain geeks " )

Output:

 The concatenated string is: pythonengineering geeksfor contains geeks 

9. and_ (a, b) : — This function is used to evaluate the bitwise and referenced arguments.
Operation — a & amp; b

10. or_ (a, b) : — This function is used to evaluate the bitwise or of the mentioned arguments.
Operation — a | b

11. xor (a, b) : — This function is used to compute the bitwise xor of the arguments mentioned.
Operation — a ^ b

12. invert (s) : — This function is used to calculate the bitwise inversion of the mentioned argument.
Operation — ~ a

# Python code to demonstrate how it works # and_ (), or_ (), xor (), invert ()   # import operator module import operator   # Initializing a and b   a = 1   b = 0   # using and_ () to display bitmap and operation print ( "The bitwise and of a and b is: " , end = " ") print (operator.and_ (a, b))   # using or_ () to display a bitmap or operation print ( "The bitwise or of a and b is:" , end = "") print (operator.or_ (a, b))    # using xor () to display a bitwise exception or operation print ( "The bitwise xor of a and b is:" , end = "") print (operator.xor (a, b))   # using invert () to invert the value operator.invert (a)    # print modified value print ( " The inverted value of a is: " , end = "") print (a)

Output:

 The bitwise and of a and b is: 0 The bitwise or of a and b is: 1 The bitwise xor of a and b is: 1 The inverted value of a is: 1 

This article courtesy of Manjit Singh . If you are as Python.Engineering and would like to contribute, you can also write an article using contribute.python.engineering or by posting an article contribute @ python.engineering. See my article appearing on the Python.Engineering homepage and help other geeks.

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