My First Project

Overview

1. Prerequisites
2. Create Project From Command Line
3. Hello World from PyCharm
4. Getting User Input
5. Tracing Program Execution

Pre requisites

1. Install Python
2. Install PyCharm

Create Project From Command Line

mkdir my-first-python-project
cd my-first-python-project

mkdir -p src/main/
mkdir -p src/test/

touch src/main/main_application.py
touch src/test/main_application_test.py

echo "My Project Description!" > README.md

start pycharm .

Setting Python Interpreter

“Hello World” from PyCharm

print("Hello World!")

Reading Input From Console at Runtime

user_input = input("What is your name?")
print("Your name is " + user_input)

Expanding Expressions

user_input_prompt = "What is your name?"
user_input = input(user_input_prompt)
user_output_prompt_prefix = "Your name is "
user_output_prompt = user_output_prompt_prefix + user_input
print(user_output_prompt)

Tracing Program Execution

Fetching Variable Type

user_input_prompt = "What is your age?"
user_input_as_string = input(user_input_prompt)
user_input_as_string_type = type(user_input)

user_input_as_int = int(user_input_as_string)
user_input_as_int_type = type(user_input_as_int)

print("user_input_as_string: " + user_input_as_string)
print("user_input_as_string_type: " + user_input_as_string_type)
print("user_input_as_int: " + user_input_as_int)
print("user_input_as_int_type: " + user_input_as_int_type)

Tracing Program Execution