Python: Find a string contains a vowel between two consonants, in a given string

Last update on May 28 2022 13:41:29 (UTC/GMT +8 hours)

Python Programming Puzzles: Exercise-73 with Solution

Write a Python program to find a substring in a given string contains a vowel between two consonants.

From vocabulary.com:
A consonant is a speech sound that is not a vowel. It also refers to letters of the alphabet that represent those sounds: Z, B, T, G, and H are all consonants. Consonants are all the non-vowel sounds, or their corresponding letters: A, E, I, O, U and sometimes Y are not consonants.

Input: Hello
Output:
Hel

Input: Sandwhich
Output:
San

Input: Python
Output:
hon

Pictorial Presentation:

Python: Find a string contains a vowel between two consonants, in a given string.

Sample Solution:

Python Code:

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

def test(s):
    cons = "bcdfghjklmnpqrstvwxz"
    vows = "aeiou"
    return next(s[i - 1:i + 2] for i in range(1, len(s) - 1)
                if s[i].lower() in vows and s[i - 1].lower() in cons and s[i + 1].lower() in cons)
strs = "Hello"
print("Original string:",strs) 
print("Find a vowel between two consonants, contained in said string:")
print(test(strs))
strs = "Sandwhich"
print("\nOriginal string:",strs) 
print("Find a vowel between two consonants, contained in said string:")
print(test(strs))
strs = "Python"
print("\nOriginal string:",strs) 
print("Find a vowel between two consonants, contained in said string:")
print(test(strs))

Sample Output:

Original string: Hello
Find a vowel between two consonants, contained in said string:
Hel

Original string: Sandwhich
Find a vowel between two consonants, contained in said string:
San

Original string: Python
Find a vowel between two consonants, contained in said string:
hon

Flowchart:

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Python Code Editor :

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Next: Find a string consisting of space-separated characters with given counts.

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