Here is how to create a virtual environment in Python.
On Windows:
Open Command Prompt (CMD), make sure the CMD is set to the folder where your project is, and execute:
py -3 -m venv env
That will create folder named env. To activate the environment execute:
env\Scripts\activate.bat
To use the Python interpreter of your virtual environment execute:
python
On Mac and Linux:
Open Terminal, make sure the terminal is set to the folder where your project is, and execute:
python3. -m venv env
That will create a folder named env. To activate the environment execute:
source env/bin/activate
To use the Python interpreter of your virtual environment execute:
python
Output
On Windows:
C:\Users\YourUsername\Documents\my_project>py -3 -m venv env
C:\Users\YourUsername\Documents\my_project>env\Scripts\activate.bat
(env) C:\Users\YourUsername\Documents\my_project>python
Python 3.x.x (tags/v3.x.x:xxxxxx, date xxxxxx) [MSC v.xxxx 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>>
On Mac and Linux:
$ cd /path/to/your/project
$ python3 -m venv env
$ source env/bin/activate
(env) $ python
Python 3.x.x (default, date xxxx) [GCC x.x.x] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>
Explanation
The above code uses the Python venv standard library. In the above example, venv will create an env folder in the current working directory of the terminal/cmd. The env folder contains a new Python installation/interpreter. That interpreter can be invoked by using the python command after having activated the virtual environment.
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