PyCharm Concepts

Internal

• PyCharm

Python Interpreter

PyCharm needs at least one Python interpreter. It can be chosen from the system interpreter

System Interpreter

A system interpreter is the interpreter that comes with the Python installation on the system. The system interpreter can be used solely for all Python scripts or as a base interpreter for the Python virtual environments.

Virtual Environment

https://virtualenv.pypa.io/en/latest/index.html

virtualenv is a tool to create isolated Python environments. A virtual environment manages settings and dependencies of a particular project, regardless of other Python projects.

virtualenv is bundled in PyCharm, which uses it to create a project-specific virtual environment. For Python 3.3+, the built-in venv module is used, instead of virtualenv