w3resource

Python: Remove key values pairs from a list of dictionaries

Python List: Exercise - 55 with Solution

Write a Python program to remove key-value pairs from a list of dictionaries.

Python: Remove key values pairs from a list of dictionaries

Sample Solution:-

Python Code:

original_list = [{'key1':'value1', 'key2':'value2'}, {'key1':'value3', 'key2':'value4'}]
print("Original List: ")
print(original_list)
new_list = [{k: v for k, v in d.items() if k != 'key1'} for d in original_list]
print("New List: ")
print(new_list)

Sample Output: 

Original List:                                                                                                
[{'key1': 'value1', 'key2': 'value2'}, {'key1': 'value3', 'key2': 'value4'}]                                  
New List:                                                                                                     
[{'key2': 'value2'}, {'key2': 'value4'}]

Flowchart:

Flowchart: Remove key values pairs from a list of dictionaries

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 concatenate elements of a list.
Next: Write a Python program to convert a string to a list.

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

Given a predicate function, fn, and a prop string, this curried function will then take an object to inspect by calling the property and passing it to the predicate:

Example:

def tips_check_prop(fn, prop):
  return lambda obj: fn(obj[prop])
check_age = tips_check_prop(lambda x: x >= 25, 'age')
user = {'name': 'Owen', 'age': 25}

print(check_age(user))

Output:

True

 

We are closing our Disqus commenting system for some maintenanace issues. You may write to us at reach[at]yahoo[dot]com or visit us at Facebook