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In python please and clear screenshot of code

In python please and clear screenshot of code

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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In python please and clear screenshot of code
Create a program named yourID_strings.py (replace yourID with your Carleton student ID). i. Add a function named length() to this program that takes a string (e.g., x) parameter and returns the total number of characters in x. You must NOT use the built-in len() method to solve this problem. ii. Add a function named find_all() to this program that takes two parameters, a list of characters (e.g., x) and a character (e.g., y), in this order. This function must return a list containing all index values (positions) where y appears in x. You must NOT use the built-in find() method to solve this problem. iii. Add a function named uppercase() to this program that takes a list of lowercase letters as a parameter (e.g., x). This function must convert each lowercase letter in x to uppercase and return the list. Your function must use the ord() and chr() functions to solve this problem. You must NOT use the built-in upper() method. Hint: for any letter, the difference between its lowercase and uppercase ASCII values is 32. For example, ASCII values of 'a' and 'A' are 97 and 65, respectively; ASCII values of 'z' and 'Z' are 122 and 90, respectively.
Transcribed Image Text:Create a program named yourID_strings.py (replace yourID with your Carleton student ID). i. Add a function named length() to this program that takes a string (e.g., x) parameter and returns the total number of characters in x. You must NOT use the built-in len() method to solve this problem. ii. Add a function named find_all() to this program that takes two parameters, a list of characters (e.g., x) and a character (e.g., y), in this order. This function must return a list containing all index values (positions) where y appears in x. You must NOT use the built-in find() method to solve this problem. iii. Add a function named uppercase() to this program that takes a list of lowercase letters as a parameter (e.g., x). This function must convert each lowercase letter in x to uppercase and return the list. Your function must use the ord() and chr() functions to solve this problem. You must NOT use the built-in upper() method. Hint: for any letter, the difference between its lowercase and uppercase ASCII values is 32. For example, ASCII values of 'a' and 'A' are 97 and 65, respectively; ASCII values of 'z' and 'Z' are 122 and 90, respectively.
the dir ence between its lowercase and uppercase ASCII values is 32. For example, ASCII values of 'a' and 'A' are 97 and 65, respectively; ASCII values of 'z' and 'Z' are 122 and 90, respectively. iv. Add a main() function to this program. Call all three functions in main() with suitable values and print the results. You must add the main guard and call main(). Docstrings and comments are not necessary.
Transcribed Image Text:the dir ence between its lowercase and uppercase ASCII values is 32. For example, ASCII values of 'a' and 'A' are 97 and 65, respectively; ASCII values of 'z' and 'Z' are 122 and 90, respectively. iv. Add a main() function to this program. Call all three functions in main() with suitable values and print the results. You must add the main guard and call main(). Docstrings and comments are not necessary.
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