Python all() Function with Examples

In the previous article, we have discussed Program for Python String swapcase() Function
all() Function in Python:

The function all() returns If all of the items in an iterable are true, it returns True; otherwise, it returns False.

The all() function returns True if the iterable object is empty.

Syntax:

all(iterable)

Parameters

iterable: It may be any iterable object like list, tuple, dictionary, set, etc.

Note: When applied to a dictionary, the all() function determines whether all of the keys are true, rather than the values.

Return value:

The function all() returns:

True if all of the elements in an iterable are true.
If any element in an iterable is false, then it returns false.

Note:

when 0 is given in the form as string, then it returns true
0 = False
'0' = True
for example: number = '00000'
# output = True

Examples:

Example1:

Input:

Given list =  [0, 1, 2, 3]
Given tuple = (10, 30, -10)
Given dictionary = {0: 'good', 1: 'morning'}

Output:

The result after applying all() function on the given list =  False
The result after applying all() function on the given tuple =  True
The result after applying all() function on the given dictionary =  False

Example2:

Input:

Given list =  ['True', 'True', 'True']
Given tuple = ()
Given dictionary = {3: 'welcome', 2: 'to', 1: 'Python-programs'}

Output:

The result after applying all() function on the given list =  True
The result after applying all() function on the given tuple =  True
The result after applying all() function on the given dictionary =  True

Method #1: Using Built-in Functions (Static Input)

Approach:

Give the list as static input and store it in a variable.
Give the tuple as static input and store it in another variable.
Give the dictionary as static input and store it in another variable.
Apply all() function on the given list that returns true if all of the items in an iterable are true, otherwise, it returns False.
Store it in another variable.
Apply all() function on the given tuple and store it in another variable.
Apply the all() function on the given dictionary and store it in another variable.
Print the result after applying all() the function on the given list.
Print the result after applying all() the function on the given tuple.
Print the result after applying all() the function on the given dictionary.
The Exit of the Program.

Below is the implementation:

# Give the list as static input and store it in a variable.
gvn_lst = [0, 1, 2, 3]
# Give the tuple as static input and store it in another variable.
gvn_tupl = (10, 30, -10)
# Give the dictionary as static input and store it in another variable.
gvn_dictnry = {0: 'good', 1: 'morning'}
# Apply all() function on the given list that returns true if all of the
# items in an iterable are true, otherwise, it returns False.
# Store it in another variable.
rslt_lst = all(gvn_lst)
# Apply all() function on the given tuple and store it in another variable.
rslt_tupl = all(gvn_tupl)
# Apply all() function on the given dictionary and store it in another variable.
rslt_dictnry = all(gvn_dictnry)
# Print the result after applying all() function on the given list.
print("The result after applying all() function on the given list = ", rslt_lst)
# Print the result after applying all() function on the given tuple.
print("The result after applying all() function on the given tuple = ", rslt_tupl)
# Print the result after applying all() function on the given dictionary.
print("The result after applying all() function on the given dictionary = ", rslt_dictnry)

Output:

The result after applying all() function on the given list =  False
The result after applying all() function on the given tuple =  True
The result after applying all() function on the given dictionary =  False

Method #2: Using Built-in Functions (User Input)

Approach:

Give the list as user input using list(),map(),input(),and split() functions and store it in a variable.
Give the tuple user input using list(),map(),input(),and split() functions and store it in another variable.
Take a dictionary and initialize it with an empty dictionary using dict() or {}.
Give the number of keys as user input using int(input()) and store it in a variable.
Loop till the given number of keys using for loop.
Inside the for loop scan the key and value as user input using input(), split() functions, and store them in two separate variables.
Initialize the key with the value of the dictionary.
Apply all() function on the given list that returns true if all of the items in an iterable are true, otherwise, it returns False.
Store it in another variable.
Apply all() function on the given tuple and store it in another variable.
Apply the all() function on the given dictionary and store it in another variable.
Print the result after applying all() the function on the given list.
Print the result after applying all() the function on the given tuple.
Print the result after applying all() the function on the given dictionary.
The Exit of the Program.

Below is the implementation:

# Give the list as User input using list(),map(),input(),and split() functions
# and store it in a variable.
gvn_lst = list(map(int, input(
    'Enter some random List Elements separated by spaces = ').split()))
# Give the tuple as User input using list(),map(),input(),and split() functions
# and store it in another variable.
gvn_tupl = tuple(map(int, input(
    'Enter some random Tuple Elements separated by spaces = ').split()))
# Take a dictionary and initialize it with an empty dictionary using dict() or {}.
gvn_dict = {}
# Give the number of keys as user input using int(input()) and store it in a variable.
numb_of_kys = int(
    input('Enter some random number of keys of the dictionary = '))
# Loop till the given number of keys using for loop.
for p in range(numb_of_kys):
        # Inside the for loop scan the key and value as
    # user input using input(),split() functions
    # and store them in two separate variables.
    keyy, valuee = input(
        'Enter key and value separated by spaces = ').split()
    # Initialize the key with the value of the dictionary.
    gvn_dict[int(keyy)] = valuee

# Apply all() function on the given list that returns true if all of the
# items in an iterable are true, otherwise, it returns False.
# Store it in another variable.
rslt_lst = all(gvn_lst)
# Apply all() function on the given tuple and store it in another variable.
rslt_tupl = all(gvn_tupl)
# Apply all() function on the given dictionary and store it in another variable.
rslt_dictnry = all(gvn_dict)
# Print the result after applying all() function on the given list.
print("The result after applying all() function on the given list = ", rslt_lst)
# Print the result after applying all() function on the given tuple.
print("The result after applying all() function on the given tuple = ", rslt_tupl)
# Print the result after applying all() function on the given dictionary.
print("The result after applying all() function on the given dictionary = ", rslt_dictnry)

Output:

Enter some random List Elements separated by spaces = 10 25 35 0
Enter some random Tuple Elements separated by spaces = 1 1 1 1
Enter some random number of keys of the dictionary = 3
Enter key and value separated by spaces = 3 welcome
Enter key and value separated by spaces = 2 to
Enter key and value separated by spaces = 1 Python-programs
The result after applying all() function on the given list = False
The result after applying all() function on the given tuple = True
The result after applying all() function on the given dictionary = True

Find a Comprehensive Collection of Python Built in Functions that you need to be aware of and use them as a part of your program.