Use Python Virtual Environment.md

Use Python Virtual Environment

To avoid version or dependence conflicts, we often create a virtual environment (venv) for a complex python project. It is also suggested to do so when you get started with pyquafu-tutorial. If you are beginners for python, the following instructions may be helpful to you.

Firstly make sure there is a suitable version of python on your computer, and note that pyquafu is tested for python>=3.8. You do not have to install heavy IDE like PyCharm. The next step is to open Command Line or Terminal, enter the path where you want to store the venv, and create it by

python -m venv <venv-name>

Here you are free to choose <venv-name> you like. Enter the environment by

<venv-name>\Scripts\activate

Then you may play with python and pyquafu. When you finish your work, to deactivate the venv, just execute

deactivate