Python: Insert spaces between words starting with capital letters

Last update on March 31 2025 12:58:00 (UTC/GMT +8 hours)

51. Insert Spaces Before Capitals

Write a Python program to insert spaces between words starting with capital letters.

Sample Solution:

Python Code:

import re
def capital_words_spaces(str1):
  return re.sub(r"(\w)([A-Z])", r"\1 \2", str1)

print(capital_words_spaces("Python"))
print(capital_words_spaces("PythonExercises"))
print(capital_words_spaces("PythonExercisesPracticeSolution"))

Sample Output:

Python
Python Exercises
Python Exercises Practice Solution 

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Python program to insert a space before each uppercase letter in a camelCase string.
• Write a Python script to modify a concatenated string of capitalized words by adding spaces between them.
• Write a Python program to convert a string like "HelloWorldPython" to "Hello World Python" using regex.
• Write a Python function to split a PascalCase string into separate words by inserting spaces before each capital letter.

Python Code Editor:

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