Python Exercises

This repository contains exercises and projects for the Python programming language. The exercises are organized into three folders:

python-hello_world

The python-hello_world folder contains exercises related to basic Python syntax and programming concepts. These exercises include:

• 2-print.py: A script that prints a specific string to the console.
• 3-print_number.py: A script that prints a specific number to the console.
• 4-print_float.py: A script that prints a specific float to the console.
• 5-print_string.py: A script that prints a specific string with special characters to the console.
• 6-concat.py: A script that concatenates two strings and prints the result to the console.
• 7-edges.py: A script that prints specific substrings of a string to the console.
• 8-concat_edges.py: A script that concatenates specific substrings of two strings and prints the result to the console.
• 9-easter_egg.py: A script that prints a specific string with an Easter egg to the console.

python-if_else_loops_functions

The python-if_else_loops_functions folder contains exercises related to control flow statements, loops, and functions in Python. These exercises include:

• 0-positive_or_negative.py: A script that generates a random number and prints whether it is positive, negative, or zero.
• 1-last_digit.py: A script that generates a random number and prints whether its last digit is greater than 5, less than 6 but not 0, or 0.
• 2-print_alphabet.py: A script that prints the alphabet in lowercase using a loop.
• 3-print_alphabt.py: A script that prints the alphabet in lowercase, except for the letters "q" and "e".
• 4-print_hexa.py: A script that prints the numbers from 0 to 98 in decimal and hexadecimal format.
• 5-print_comb2.py: A script that prints all possible combinations of two digits.
• 6-print_comb3.py: A script that prints all possible combinations of three digits.
• 7-islower.py: A function that checks whether a given character is lowercase.
• 8-uppercase.py: A function that converts a string to uppercase.
• 9-print_last_digit.py: A function that prints the last digit of a given number.
• 10-add.py: A function that adds two numbers and returns the result.
• 11-pow.py: A function that calculates the power of a given number.
• 12-fizzbuzz.py: A function that prints the numbers from 1 to 100, replacing multiples of 3 with "Fizz", multiples of 5 with "Buzz", and multiples of both with "FizzBuzz".
• 100-print_tebahpla.py: A script that prints the alphabet in reverse order, alternating between uppercase and lowercase letters.
• 101-remove_char_at.py: A function that removes a character at a given position from a string.
• 101-main.py: A script that tests the 101-remove_char_at.py function.
• 11-main.py: A script that tests the 11-pow.py function.
• 10-main.py: A script that tests the 10-add.py function.
• 9-main.py: A script that tests the 9-print_last_digit.py function.
• 8-main.py: A script that tests the 8-uppercase.py function.
• 7-main.py: A script that tests the 7-islower.py function.
• 6-print_comb3.py: A script that tests the 6-print_comb3.py script.
• 5-print_comb2.py: A script that tests the 5-print_comb2.py script.
• 4-print_hexa.py: A script that tests the 4-print_hexa.py script.
• 3-print_alphabt.py: A script that tests the 3-print_alphabt.py script.

Note that the __pycache__/ directory contains compiled bytecode files that Python generates to improve the performance of importing modules. You can safely ignore this directory.

python-import_modules

The python-import_modules folder contains exercises related to importing and using modules in Python. These exercises include:

• 0-add.py: A script that imports a function from add-0 and uses it to add two numbers.
• 1-calculation.py: A script that imports functions from a module and uses them to perform various calculations.
• 2-args.py: A script that prints the arguments passed to it using the sys module.
• 3-infinite_add.py: A script that adds any number of positive integers passed to it as arguments.
• 4-hidden_discovery.py: A script that prints all the names defined in a module that do not start with "__".
• 5-variable_load.py: A script that imports a variable from a module and prints its value.
• 100-my_calculator.py: A script that imports all functions from a module and uses them to perform various calculations.
• 101-easy_print.py: A script that prints a specific string to the console using the sys module.
• 102-magic_calculation.py: A Python function that replicates the following Python bytecode:

  3           0 LOAD_CONST               1 (98)
              3 LOAD_FAST                0 (a)
              6 LOAD_FAST                1 (b)
              9 BINARY_POWER
             10 BINARY_ADD
             11 RETURN_VALUE

• 103-fast_alphabet.py: A script that prints the alphabet in uppercase without using loops, conditional statements, string literals, or system calls.

python-data_structures

The python-data_structures repository contains exercises related to data structures in Python. These exercises include:

• 0-print_list_integer.py: A script that prints all integers of a list.
• 1-element_at.py: A function that retrieves an element from a list like in C.
• 2-replace_in_list.py: A function that replaces an element of a list at a specific position.
• 3-print_reversed_list_integer.py: A script that prints all integers of a list, in reverse order.
• 4-new_in_list.py: A function that replaces an element in a list at a specific position without modifying the original list.
• 5-no_c.py: A function that removes all characters c and C from a string.
• 6-print_matrix_integer.py: A function that prints a matrix of integers.
• 7-add_tuple.py: A function that adds 2 tuples.
• 8-multiple_returns.py: A function that returns a tuple with the length of a string and its first character.
• 9-max_integer.py: A function that finds the biggest integer of a list.
• 10-divisible_by_2.py: A function that finds all multiples of 2 in a list.
• 11-delete_at.py: A function that deletes the item at a specific position in a list.
• 12-switch.py: A function that switches the values of two variables.

Note that the __pycache__/ directory contains compiled bytecode files that Python generates to improve the performance of importing modules. You can safely ignore this directory.

Author

Joshua Santiago