Install flask under Windows

1. Install the Python environment:

This is not to be discussed here.

2, install VIRTUALENV virtual environment:

This is used to create a virtual environment using the third-party tool Virtualenv . The benefits of the virtual environment are as follows (excerpt network):

  "  install  flask  The most convenient way is to use a virtual environment. The virtual environment is a private copy of the  python  interpreter, in In this environment you can install private packages , and does not affect the global  python  interpreter installed in the system. "

  "< Span class= "Fontstyle2" > Virtual environment is very useful, can be in the system  python  The interpreter avoids the confusion of the package and the version conflict. Creating a separate virtual environment for each neat, Make it a source for creating (more) virtual environments. The advantage of using a virtual environment is that you do not need Administrator privileges. "

Enter command in CMD: virtualenv--version to detect if the Windows system has Virtualenv installed, error description not installed, Install virtualenv with the command pip install.

Install and then enter the command: Virtualenv--version, such as:

Create a project directory that you can either receive or create with the following command:

A venv folder is generated under the Pythonproject folder on the G-disk.

To activate a virtual environment:

Enter Command venv\scripts\activate

3. Install flask in virtual environment:

Use the command pip install flask

Start the Python interpreter, import Flask, and verify that it is installed:

If there is no error, the installation is successful.

4. Open the project with Pycharm:

Select "File", "Open", such as:

can be easily developed.

As a beginner, I create projects like this, and how to create them in real work is unclear.

Install flask under Windows