Table of Contents

    Essential Python List Built-In Functions: A Complete Guide

    Rumman Ansari July 26, 2024 743 views

    Python provides the following built-in functions, which can be used with the lists.

    SN Function Description Example
    1 cmp(list1, list2) It compares the elements of both the lists. This method is not used in the Python 3 and the above versions.
    2 len(list) It is used to calculate the length of the list. 
    L1 = [1,2,3,4,5,6,7,8]
print(len(L1))
    8
    3 max(list) It returns the maximum element of the list. 
    L1 = [12,34,26,48,72]
print(max(L1))
72
    4 min(list) It returns the minimum element of the list. 
    L1 = [12,34,26,48,72]
print(min(L1))
12
    5 list(seq) It converts any sequence to the list. 
    str = "Johnson"
s = list(str)
print(type(s))

    Python List/Array Methods

    Sr. No. Method Description Example
    1 append() Adds an element at the end of the list my_list = [1, 2, 3]
    my_list.append(4)
    print(my_list)
    Output: [1, 2, 3, 4]
    2 clear() Removes all the elements from the list my_list = [1, 2, 3]
    my_list.clear()
    print(my_list)
    Output: []
    3 copy() Returns a copy of the list my_list = [1, 2, 3]
    new_list = my_list.copy()
    print(new_list)
    Output: [1, 2, 3]
    4 count() Returns the number of elements with the specified value my_list = [1, 2, 2, 3, 2]
    count = my_list.count(2)
    print(count)
    Output: 3
    5 extend() Add the elements of a list (or any iterable) to the end of the current list my_list = [1, 2, 3]
    my_list.extend([4, 5])
    print(my_list)
    Output: [1, 2, 3, 4, 5]
    6 index() Returns the index of the first element with the specified value my_list = [1, 2, 3, 2]
    index = my_list.index(2)
    print(index)
    Output: 1
    7 insert() Adds an element at the specified position my_list = [1, 2, 3]
    my_list.insert(1, 4)
    print(my_list)
    Output: [1, 4, 2, 3]
    8 pop() Removes the element at the specified position my_list = [1, 2, 3]
    element = my_list.pop(1)
    print(element)
    Output: 2
    9 remove() Removes the first item with the specified value my_list = [1, 2, 3, 2]
    my_list.remove(2)
    print(my_list)
    Output: [1, 3, 2]
    10 reverse() Reverses the order of the list my_list = [1, 2, 3]
    my_list.reverse()
    print(my_list)
    Output: [3, 2, 1]
    11 sort() Sorts the list my_list = [3, 1, 2]
    my_list.sort()
    print(my_list)
    Output: [1, 2, 3]
    Practice Quiz 45 MCQs Smart Learning

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    MCQ Section

    MCQ 1
    What will be the output after the following statements? 
    x = -4
if abs(x) > 0:
    print('This is absolute value')
    MCQ 2
    What will be the output after the following statements? 
    x = -3
if abs(x) < 3:
    print(x)
else:
    print(0)
    MCQ 3
    What will be the output after the following statements? 
    x = -4
if bool(x):
    print(x)
else:
    print(0)
    MCQ 4
    What will be the output after the following statements? 
    x = 0
if bool(x):
    print(x)
else:
    print(5)
    MCQ 5
    What will be the output after the following statements? 
    x = 'None'
if bool(x):
    print('Yes')
else:
    print('No')
    MCQ 6
    What will be the output after the following statements? 
    x = ''
if bool(x):
    print('Yes')
else:
    print('No')
    MCQ 7
    What will be the output after the following statements? 
    x = ' '
if bool(x):
    print('Yes')
else:
    print('No')
    MCQ 8
    What will be the output after the following statements? 
    x = []
if bool(x):
    print('Yes')
else:
    print('No')
    MCQ 9
    What will be the output after the following statements? 
    x = [1, 2, 3]
if bool(x):
    print('Yes')
else:
    print('No')
    MCQ 10
    What will be the output after the following statements? 
    x = ''
if not bool(x):
    print('Yes')
else:
    print('No')
    MCQ 11
    What will be the output after the following statements? 
    x = 'print("Python")'
eval(x)
    MCQ 12
    What will be the output after the following statements if input entered is 45*2 ? 
    x = input("Enter an expression: ")
print(eval(x))
    MCQ 13
    What will be the output after the following statements? 
    x = '''print("Python 3", end='')
print(" is Good")'''
exec(x)
    MCQ 14
    What will be the output after the following statements? 
    a = ['a', 'b', 'c', 'A', 'B']
print(max(a))
    MCQ 15
    What will be the output after the following statements? 
    a = ['a', 'b', 'c', 'A', 'B']
print(min(a))
    MCQ 16
    What will be the output after the following statements? 
    a = ['a', 'b', 'c', '1', '2', 'A', 'B']
print(max(a))
    MCQ 17
    What will be the output after the following statements? 
    a = ['a', 'b', 'c', '1', '2', 'A', 'B']
print(min(a))
    MCQ 18
    What will be the output after the following statements? 
    a = [1, 2, 3]
print(sum(a))
    MCQ 19
    What will be the output after the following statements? 
    a = list(range(0,10,3))
print(sum(a))
    MCQ 20
    What will be the output after the following statements? 
    a = list(range(10,-10,3))
print(sum(a))
    MCQ 21
    What will be the output after the following statements? 
    a = list(range(-10,5,2))
print(sum(a))
    MCQ 22
    What will be the output after the following statements? 
    x = [5, 4, 3, 2, 1]
y = x.copy()
x[0] = 6
print(y)
    MCQ 23
    What will be the output after the following statements? 
    import copy
x = [5, 4, 3, 2, 1]
y = copy.copy(x)
x.append(6)
print(y[0])
    MCQ 24
    What will be the output after the following statements? 
    import keyword
print(keyword.iskeyword('IS'))
    MCQ 25
    What will be the output after the following statements? 
    import keyword
print(keyword.iskeyword('for'))
    MCQ 26
    What will be the output after the following statements? 
    import keyword
print(keyword.iskeyword('Python'))
    MCQ 27
    What will be the output after the following statements? 
    import random
x = [3, 8, 6, 5, 0]
print(random.choice(x))
    MCQ 28
    What will be the output after the following statements? 
    import random
x = [3, 8, 6, 5, 0]
random.shuffle(x)
print(x)
    MCQ 29
    What will be the output after the following statements? 
    import random
x = [3, 8, 6, 5, 0]
y = random.shuffle(x)
print(y)
    MCQ 30
    What will be the output after the following statements? 
    import sys
x = sys.stdout.write('Python Jobs')
    MCQ 31
    What will be the output after the following statements? 
    x = ['a', 'b', 'c', 'A', 'B', 'C']
x.sort()
print(x)
    MCQ 32
    What will be the output after the following statements? 
    x = ['a', 'b', 'c', 'A', 'B', 'C']
x.sort(key=str.lower)
print(x)
    MCQ 33
    What will be the output after the following statements? 
    x = ['a', 'b', 'c', 'A', 'B', 'C']
x.sort(key=str.swapcase)
print(x)
    MCQ 34
    What will be the output after the following statements? 
    x = 'python jobs'
x.upper()
print(x)
    MCQ 35
    What will be the output after the following statements? 
    x = 'Python Jobs'
x.lower()
print(x)
    MCQ 36
    What will be the output after the following statements? 
    x = 'Python Jobs'
if x.lower() == 'python jobs':
    print('Python jobs')
else:
    print('python 3 jobs')
    MCQ 37
    What will be the output after the following statements? 
    x = 'Python Jobs'
if x.isupper():
    print('Python jobs')
else:
    print('python 3 jobs')
    MCQ 38
    What will be the output after the following statements? 
    x = 'Python Jobs'
y = x.upper().lower().upper()
print(y)
    MCQ 39
    What will be the output after the following statements? 
    x = 'Python Jobs'
y = x.upper().lower().isupper()
print(y)
    MCQ 40
    What will be the output after the following statements? 
    x = ['Python', 'is', 'interesting']
y = ' '.join(x)
print(y)
    MCQ 41
    What will be the output after the following statements? 
    x = 'Python is interesting'
y = x.split()
print(y)
    MCQ 42
    What will be the output after the following statements? 
    x = '''Today is a nice day.
Let's go for a walk.
We'll also go to the park.'''
y = x.split('\n')
print(y)
    MCQ 43
    What will be the output after the following statements? 
    x = 'Python 2 and Python 3'
print(x.strip('and'))
    MCQ 44
    What will be the output after the following statements? 
    x = 'Python 2 and Python 3'
print(x.strip('thon 3'))
    MCQ 45
    What is the first line of the following statements on Windows? 
    #! python3
x = 'Python 3'