Write it in python. Write a group of required functions for text processing in the script p5.py.

Write it in python.

 

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Write a group of required functions for text processing in the script p5.py. The input test_string should be a single string. Implement the count_digit (test_string) function and return the number of digital char- acters 0-9 in the test_string. Implement the check_isogram (test_string) function and return the bool variable to indicate whether test_string has duplicate letters. If test_string is an isogram, then the function returns True. If test_string is not an isogram, then the function returns False. Implement the join(original_string, inserted_list) function and return a new string which made by joining characters in Inserted_list with original_string inserted between every element. Implement the search (test_string, sub) function and return the highest index in test_string where substring sub is found. If not found, it returns -1. Write a group of required functions for text processing in the script p5.py. The input test_string should be a single string. Implement the count_digit (test_string) function and return the number of digital char- acters 0-9 in the test_string. Implement the check_isogram (test_string) function and return the bool variable to indicate whether test_string has duplicate letters. If test_string is an isogram, then the function returns True. If test_string is not an isogram, then the function returns False. Implement the join(original_string, inserted_list) function and return a new string which made by joining characters in Inserted_list with original_string inserted between every element. Implement the search (test_string, sub) function and return the highest index in test_string where substring sub is found. If not found, it returns -1.