w3resource

Python: Iterate over two lists simultaneously

Python List: Exercise - 64 with Solution

Write a Python program to iterate over two lists simultaneously.

Sample Solution-1:

Python Code:

num = [1, 2, 3]
color = ['red', 'white', 'black']
for (a,b) in zip(num, color):
     print(a, b)
	 

Sample Output:

1 red                                                                                                         
2 white                                                                                                       
3 black

Pictorial Presentation:

Python List: Iterate over two lists simultaneously.

Flowchart:

Flowchart: Iterate over two lists simultaneously

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Sample Solution-2:

Python Code:

def print_itr(itr1, itr2, fn):
    for (itr1, itr2) in zip(num, color):
     fn(itr1, itr2)     
num = [1, 2, 3]
color = ['red', 'white', 'black']
print_itr(num, color, print)

Sample Output:

1 red
2 white
3 black

Flowchart:

Flowchart: Iterate over two lists simultaneously

Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:


Python Code Editor:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous: Write a Python program to insert a given string at the beginning of all items in a list.
Next: Write a Python program to move all zero digits to end of a given list of numbers.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Follow us on Facebook and Twitter for latest update.

Python: Tips of the Day

Returns True if the provided function returns True for every element in the list, False otherwise:

Example:

def tips_every(lst, fn=lambda x: x):
  return all(map(fn, lst))

print(tips_every([2, 4, 3], lambda x: x > 1))
print(tips_every([1, 2, 3]))

Output:

True
True