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Python: Convert string values of a given dictionary, into integer/float datatypes

Python dictionary: Exercise-49 with Solution

Write a Python program to convert string values of a given dictionary, into integer/float datatypes.

Sample Solution:

Python Code:

def convert_to_int(lst):
    result = [dict([a, int(x)] for a, x in b.items()) for b in lst]
    return result

def convert_to_float(lst):
    result = [dict([a, float(x)] for a, x in b.items()) for b in lst]
    return result

nums =[{ 'x':'10' , 'y':'20' , 'z':'30' }, { 'p':'40', 'q':'50', 'r':'60'}]
print("Original list:")
print(nums)
print("\nString values of a given dictionary, into integer types:")
print(convert_to_int(nums))
nums =[{ 'x':'10.12', 'y':'20.23', 'z':'30'}, { 'p':'40.00', 'q':'50.19', 'r':'60.99'}]
print("\nOriginal list:")
print(nums)
print("\nString values of a given dictionary, into float types:")
print(convert_to_float(nums))

Sample Output: 

Original list:
[{'x': '10', 'y': '20', 'z': '30'}, {'p': '40', 'q': '50', 'r': '60'}]

String values of a given dictionary, into integer types:
[{'x': 10, 'y': 20, 'z': 30}, {'p': 40, 'q': 50, 'r': 60}]

Original list:
[{'x': '10.12', 'y': '20.23', 'z': '30'}, {'p': '40.00', 'q': '50.19', 'r': '60.99'}]

String values of a given dictionary, into float types:
[{'x': 10.12, 'y': 20.23, 'z': 30.0}, {'p': 40.0, 'q': 50.19, 'r': 60.99}]

Pictorial Presentation:

Python Dictionary: Convert string values of a given dictionary, into integer/float datatypes.

Flowchart:

Flowchart: Convert string values of a given dictionary, into integer/float datatypes.

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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