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Python venv (Windows command line)

Create venv with Windows command line (you may also consider Python venv (PyCharm).

This is the recommended method to create a virtual environment for Room plugins.

Install Python 3 on Windows x64 (for Room plugins)

At this time we recommend Python 3.8.0 release which is stable.

Room installer will install Python 3.8.0 in C:\Python38 so we recommend to let Room install Python. Anyway, you can download Python x64 installer from python.org and run the installer yourself, please select C:\Python38 for the target folder.

The installation performed by Room is somehow minimal:

$ python-3.8.0-amd64.exe /quiet TargetDir=C:\Python38 Shortcuts=0 PrependPath=1 Include_doc=0 Include_launcher=0 Include_test=0

For a manual installation, select custom installation:

  • add Python 3.8.0 to PATH is selected
  • unselect all options
  • select pip
  • select tcl/tk and IDLE
  • select create shortcuts
  • select add Pyhton to environment variables
  • install in C:\Python38

To create a new venv in your project folder

Please note that Room plugins are recommended to run in their own venv created with this method.

1) Create venv

$ cd «Your Project Directory»
$ python -m pip install --upgrade pip
$ python -m venv --copies --clear .\venv

2) Activate venv

$ venv\Scripts\activate.bat

3) Update pip and install project requirements (if any)

$ python -m pip install --upgrade pip
$ pip install -r requirements.txt

You can now run your Python script from the command line.

4) Update requirements if you install new packages in this venv

$ pip freeze > requirements.txt

5) Exit venv when you're done

$ venv\Scripts\deactivate.bat

Author

Faure Systems (Dec 5th, 2019)