Python: Expand Spaces

Python Programming Puzzles: Exercise-99 with Solution

Write a Python program to find a string such that, when three or more spaces are compacted to a '-' and one or two spaces are replaced by underscores, leads to the target.

Input: 
Python-Exercises
Output:
Python   Exercises

Input:  
Python_Exercises
Output:
Python Exercises

Input:  
-Hello,_world!__This_is-so-easy!-
Output:
Hello, world!  This is   so   easy! 

Pictorial Presentation:

Sample Solution:

Python Code:

#License: https://bit.ly/3oLErEI

def test(strs):
       return strs.replace("-", " " * 3).replace("_", " ")

strs = "Python-Exercises"
print("Original strings:",strs)
print("Depth of groups of matched nested parentheses separated by parentheses:")
print(test(strs))
strs = "Python_Exercises"
print("\nOriginal strings:",strs)
print("Depth of groups of matched nested parentheses separated by parentheses:")
print(test(strs))
strs = "-Hello,_world!__This_is-so-easy!-"
print("\nOriginal strings:",strs)
print("Depth of groups of matched nested parentheses separated by parentheses:")
print(test(strs))

Sample Output:

Original strings: Python-Exercises
Depth of groups of matched nested parentheses separated by parentheses:
Python   Exercises

Original strings: Python_Exercises
Depth of groups of matched nested parentheses separated by parentheses:
Python Exercises

Original strings: -Hello,_world!__This_is-so-easy!-
Depth of groups of matched nested parentheses separated by parentheses:
   Hello, world!  This is   so   easy!  

Flowchart:

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