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Python JSON: Access only unique key value of a Python object

Python JSON: Exercise-9 with Solution

Write a Python program to access only unique key value of a Python object.

Sample Solution:-

Python Code:

import json
python_obj = '{"a":  1, "a":  2, "a":  3, "a": 4, "b": 1, "b": 2}'
print("Original Python object:")
print(python_obj)
json_obj = json.loads(python_obj)
print("\nUnique Key in a JSON object:")
print(json_obj)

Output:

Original Python object:
{"a":  1, "a":  2, "a":  3, "a": 4, "b": 1, "b": 2}

Unique Key in a JSON object:
{'a': 4, 'b': 2}

Flowchart:

Flowchart: Access only unique key value of a Python object.

Python Code Editor:


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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