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Python: Convert a given decimal number to binary list

Python List: Exercise - 185 with Solution

Write a Python program to convert a given decimal number to binary list.

Sample Solution:

Python Code:

def decimal_to_binary_list(n):
    result = [int(x) for x in list('{0:0b}'.format(n))]
    return result
n = 8
print("Original Number:",n)
print("Decimal number (",n,") to binary list:")
print(decimal_to_binary_list(n))
n = 45
print("\nOriginal Number:",n)
print("Decimal number (",n,") to binary list:")
print(decimal_to_binary_list(n))
n = 100
print("\nOriginal Number:",n)
print("Decimal number (",n,") to binary list:")
print(decimal_to_binary_list(n))

Sample Output:

Original Number: 8
Decimal number ( 8 ) to binary list:
[1, 0, 0, 0]

Original Number: 45
Decimal number ( 45 ) to binary list:
[1, 0, 1, 1, 0, 1]

Original Number: 100
Decimal number ( 100 ) to binary list:
[1, 1, 0, 0, 1, 0, 0]

Pictorial Presentation:

Python List: Convert a given decimal number to binary list.

Flowchart:

Flowchart: Convert a given decimal number to binary list.

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Next: Write a Python program to swap two sublists in a given list.

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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