Скачать или смотреть Create your own command line to do list app with python

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creating a command-line to-do list application in python can be a fun and educational project. below, i'll guide you through building a simple to-do list app that allows you to add, view, and delete tasks using the command line. we'll use basic python functionalities and a simple text file to store the tasks.

step 1: setting up the project

1. **create a new directory**:
create a new directory for your project. you can name it `todo_app`.



2. **create a python file**:
inside your project directory, create a new python file named `todo.py`.



step 2: basic structure

open `todo.py` in your favorite text editor and start by defining a basic structure for your app.



step 3: explanation of the code

1. **imports**:
we import the `json` module to handle the json file for storing tasks.
the `os` module is used to check if the file exists.

2. **functions**:
**load_todos()**: loads tasks from a json file.
**save_todos(todos)**: saves the current list of tasks back to the json file.
**add_task(task)**: adds a new task to the list and saves it.
**view_tasks()**: displays all tasks.
**delete_task(index)**: deletes a specific task based on its index.

3. **main loop**:
the `main()` function runs an infinite loop that prompts the user for commands (`add`, `view`, `delete`, `exit`).
depending on the input, it calls the appropriate function.

step 4: running the application

after you've written the code, you can run your to-do list app from the command line:



step 5: usage

to **add a task**, type `add`, followed by the task description.
to **view tasks**, type `view`.
to **delete a task**, type `delete`, followed by the task number shown in the view list.
to **exit**, type `exit`.

conclusion

you've now created a basic command-line to-do list application in python! you can expand upon this by adding features such as task prioritization, due dates, or even a user interface using lib ...

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