"I want to learn Python, but where should I start?" "I just want to make something!"
The solution to such beginners' problems isBuild your own ToDo appis.
This app isBasic grammar, file operations, conditional branching, loops, functionsIt is packed with elements such as these.
And once completed,Tools that can actually be used in everyday lifeIt will be.
In this article,A detailed explanation of how to create a ToDo app that anyone can easily make, with all the code exposedI will.
What is a ToDo app? Basic Concept
Conclusion: This is an app that lets you add, view, and save tasks.
A ToDo app is a tool for managing your to-do list.
It looks simple,Basic programming functionsIt's packed with a lot of.
What can you do specifically?
- Add a task
- List tasks
- Mark a task as completed
- Delete a task
- Save and reuse data
Let's try to create a set of such functions using only Python.
List of Python functions used
Conclusion: It can be created with a syntax that is easy to remember even for beginners.
The main features of this app are:
input()(user input)print()(output)open()(File saving/loading)for/if(Repetition and Conditions)def(Function definition)
This is all you need to complete your ToDo app.
Overview and structure of the code
Conclusion: Composition is a combination of simple functions
The entire app is divided into the following functions:
load_tasks(): Load a task from a filesave_tasks(): Write a task to a fileshow_tasks(): Shows the current task listadd_task(): Add a new taskdelete_task(): Delete a taskmain(): Menus and Controls
This structure aims to achieve both "ease of viewing" and "ease of use."
The complete code is now revealed!
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Common errors and how to fix them
Conclusion: Be careful with file operations and input errors
We have summarized the points that beginners often find difficult.
FileNotFoundError
- Cause:
tasks.txtAttempting to load something that doesn't exist - Solution:
try-exceptThe error has been avoided by surrounding the process with
ValueError
- Cause: Entering something other than a number when deleting
- Solution:
int()ConversiontryBlock and protect
IndexError
- Cause: A task with a non-existent number was specified.
- Solution:
1 <= num <= len(tasks)Check the range in advance
Summary: Let's create a ToDo app with Python
The ToDo app isSimple in structure, highly practical, and an ideal subject for learningis.
What you will learn:
- Receiving User Input
- Conditional branching and repetition
- Data storage and loading
- Structural design using functions
Application points:
- Added the ability to check completed tasks
- Date and time and category saving function
- Development towards GUI (apps with screens)
The best way to learn is to "just try making it."
Please run this code,Your personal ToDo appPlease complete it!
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