tendo

Tendo is a Python library that extends core functionality, providing tools such as transparent Unicode support for file operations, a `tee` implementation for concurrent output, and an improved `execfile` function. Its prominent `singleton` module ensures that only a single instance of a Python script or application can run at a time on a given machine, leveraging lock files for process management. As of version 0.4.0, it requires Python 3.8+ and uses `SingleInstance` as a context manager.