Python: Convert a given dictionary into a list of lists
Python dictionary: Exercise-56 with Solution
Write a Python program to convert a given dictionary into a list of lists.
Sample Solution:
Python Code:
def test(dictt):
result = list(map(list, dictt.items()))
return result
color_dict = {1 : 'red', 2 : 'green', 3 : 'black', 4 : 'white', 5 : 'black'}
print("\nOriginal Dictionary:")
print(color_dict)
print("Convert the said dictionary into a list of lists:")
print(test(color_dict))
color_dict = {'1' : 'Austin Little', '2' : 'Natasha Howard', '3' : 'Alfred Mullins', '4' : 'Jamie Rowe'}
print("\nOriginal Dictionary:")
print(color_dict)
print("Convert the said dictionary into a list of lists:")
print(test(color_dict))
Sample Output:
Original Dictionary: {1: 'red', 2: 'green', 3: 'black', 4: 'white', 5: 'black'} Convert the said dictionary into a list of lists: [[1, 'red'], [2, 'green'], [3, 'black'], [4, 'white'], [5, 'black']] Original Dictionary: {'1': 'Austin Little', '2': 'Natasha Howard', '3': 'Alfred Mullins', '4': 'Jamie Rowe'} Convert the said dictionary into a list of lists: [['1', 'Austin Little'], ['2', 'Natasha Howard'], ['3', 'Alfred Mullins'], ['4', 'Jamie Rowe']]
Flowchart:
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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
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