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Python Data Structures and Algorithms - Recursion: Sum of a list of numbers

Python Recursion: Exercise-1 with Solution

Write a Python program to calculate the sum of a list of numbers.

Sample Solution:

Python Code:

def list_sum(num_List):
    if len(num_List) == 1:
        return num_List[0]
    else:
        return num_List[0] + list_sum(num_List[1:])
        
print(list_sum([2, 4, 5, 6, 7]))

Sample Output:

24

Flowchart:

Flowchart: Recursion: Sum of a list of numbers.

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Python: Tips of the Day

Decapitalizes the first letter of a string:

Example:

def tips_decapitalize(s, upper_rest=False):
  return s[:1].lower() + (s[1:].upper() if upper_rest else s[1:])
print(tips_decapitalize('PythonTips'))
print(tips_decapitalize('PythonTips', True)) 

Output:

pythonTips
pYTHONTIPS