Please note, this is a STATIC archive of website www.w3resource.com from 19 Jul 2022, cach3.com does not collect or store any user information, there is no "phishing" involved.
w3resource

Python: Remove a specified dictionary from a given list

Python dictionary: Exercise-48 with Solution

Write a Python program to remove a specified dictionary from a given list.

Sample Solution:

Python Code:

def remove_dictionary(colors, r_id):
    colors[:] = [d for d in colors if d.get('id') != r_id]
    return colors

colors = [{"id" : "#FF0000", "color" : "Red"}, 
          {"id" : "#800000", "color" : "Maroon"}, 
          {"id" : "#FFFF00", "color" : "Yellow"}, 
          {"id" : "#808000", "color" : "Olive"}] 
print('Original list of dictionary:')
print(colors)
r_id = "#FF0000"
print("\nRemove id",r_id,"from the said list of dictionary:")
print(remove_dictionary(colors, r_id))

Sample Output:

Original list of dictionary:
[{'id': '#FF0000', 'color': 'Red'}, {'id': '#800000', 'color': 'Maroon'}, {'id': '#FFFF00', 'color': 'Yellow'}, {'id': '#808000', 'color': 'Olive'}]

Remove id #FF0000 from the said list of dictionary:
[{'id': '#800000', 'color': 'Maroon'}, {'id': '#FFFF00', 'color': 'Yellow'}, {'id': '#808000', 'color': 'Olive'}]

Pictorial Presentation:

Python Dictionary: Remove a specified dictionary from a given list.

Flowchart:

Flowchart: Remove a specified dictionary from a given list.

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 split a given dictionary of lists into list of dictionaries.
Next: Write a Python program to convert string values of a given dictionary, into integer/float datatypes.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m