Python – Rows with all List elements

Python Server Side Programming Programming

When it is required to give the rows with all list elements, a flag value, a simple iteration and the ‘append’ method is used.

Example

Below is a demonstration of the same

my_list = [[8, 6, 3, 2], [1, 6], [2, 1,7], [8, 1, 2]]

print("The list is :")
print(my_list)

sub_list = [1, 2]

result = []
for row in my_list:

   flag = True

   for element in sub_list:
      if element not in row:
         flag = False
   if flag:
      result.append(row)

print("The resultant list is :")
print(result)

Output

The list is :
[[8, 6, 3, 2], [1, 6], [2, 1, 7], [8, 1, 2]]
The resultant list is :
[[2, 1, 7], [8, 1, 2]]

Explanation

A list of list is defined and is displayed on the console.
Another list with integer values is defined.
Another empty list is defined.
The list of list is iterated over and a flag value is set to ‘True’.
If the element present in the integer list is not present in the list, the flag value is set to ‘False’.
In the end, depending on the flag value, the output is determined.
If the value of flag is ‘True’, the element is appended to the empty list.
This is displayed as output on the console.

AmitDiwan

Published on 14-Sep-2021 11:06:56

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