PyCharm Concepts
Internal
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
A virtual environment consists of a base interpreter and installed packages. It manages settings and dependencies of a particular project, regardless of other Python projects. Several types of virtual environments are available: Virtualenv, Pipenv, [|#Poetry|Poetry]] and Conda.
Virtualenv
virtualenv
is a tool to create isolated Python environments. 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