How to install flask in python 2023 easy guide
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certainly! flask is a lightweight web framework for python that is easy to use and flexible, making it a great choice for building web applications and apis. here’s a step-by-step guide on how to install flask in python (2023).
step 1: install python
before installing flask, you need to have python installed on your system. you can check if python is installed by running the following command in your terminal or command prompt:
or
if python is not installed, download and install it from the official [python website](https://www.python.org/downloads/). make sure to check the box that says "add python to path" during installation.
step 2: set up a virtual environment (optional but recommended)
it's a good practice to use a virtual environment for your projects to manage dependencies. here’s how you can set it up:
1. *open your terminal or command prompt.*
2. *navigate to your project directory* (you can create one if it doesn’t exist):
3. *create a virtual environment:*
or, if you are using python 3:
4. *activate the virtual environment:*
on windows:
on macos/linux:
you should see the name of your virtual environment in your terminal prompt, indicating that it is active.
step 3: install flask
with your virtual environment activated, you can now install flask using pip. run the following command:
you can verify the installation by checking the flask version:
step 4: create a simple flask application
now that flask is installed, let’s create a simple web application.
1. *create a new file called `app.py`:*
(on windows, you can create this file using any text editor or use `echo. app.py` in the command prompt.)
2. *open `app.py` in your favorite text editor and add the following code:*
step 5: run your flask application
to run your flask application, execute the following command in your terminal:
or, if you are using python 3:
you should see outp ...
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