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Python: Drop empty Items from a given Dictionary

Python dictionary: Exercise-41 with Solution

Write a Python program to drop empty Items from a given Dictionary.

Sample Solution:

Python Code:

dict1 = {'c1': 'Red', 'c2': 'Green', 'c3':None}
print("Original Dictionary:")
print(dict1)
print("New Dictionary after dropping empty items:")
dict1 = {key:value for (key, value) in dict1.items() if value is not None}
print(dict1)

Sample Output: 

Original Dictionary:
{'c1': 'Red', 'c2': 'Green', 'c3': None}
New Dictionary after dropping empty items:
{'c1': 'Red', 'c2': 'Green'}

Pictorial Presentation:

Python Dictionary: Drop empty Items from a given Dictionary.

Flowchart:

Flowchart: Drop empty Items from a given Dictionary.

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Previous: Write a Python program to create a dictionary of keys x, y, and z where each key has as value a list from 11-20, 21-30, and 31-40 respectively. Access the fifth value of each key from the dictionary.
Next: Write a Python program to filter a dictionary based on values.

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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