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Python: Sort a given list of strings(numbers) numerically

Python List: Exercise - 139 with Solution

Write a Python program to sort a given list of strings(numbers) numerically.

Sample Solution:

Python Code:

def sort_numeric_strings(nums_str):
    result = [int(x) for x in nums_str]
    result.sort()
    return result
nums_str = ['4','12','45','7','0','100','200','-12','-500']
print("Original list:")
print(nums_str)
print("\nSort the said list of strings(numbers) numerically:")
print(sort_numeric_strings(nums_str))

Sample Output: 

Original list:
['4', '12', '45', '7', '0', '100', '200', '-12', '-500']

Sort the said list of strings(numbers) numerically:
[-500, -12, 0, 4, 7, 12, 45, 100, 200]

Flowchart:

Flowchart: Sort a given list of strings(numbers) numerically.

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Previous: Write a Python program to sort a given mixed list of integers and strings. Numbers must be sorted before strings.
Next: Write a Python program to remove the specific item from a given list of lists.

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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