runpyrunpathfilename

Runpyrunpathfilename is a descriptive, non-standard term used to refer to a utility that executes a Python script by combining a directory path and a filename. In practice, such a wrapper would typically rely on Python’s runpy.run_path function to run the script in its own namespace, returning the resulting global variables. The concept is commonly used in automation, test runners, and dynamic scripting environments where scripts are stored in a filesystem and need to be executed on demand.

The expected behavior of a runpyrunpathfilename-style utility is to take inputs such as a directory path and a filename, construct a full path, validate the file’s existence and, often, its Python file extension. It would then execute the script in a controlled namespace, usually by invoking runpy.run_path and optionally returning the script’s global dictionary or a subset of it. Some implementations may support optional parameters to influence the run name, initial globals, or to capture standard output and error streams.

Implementation notes emphasize portability and safety. Path handling should use platform-agnostic joins (for example, using os.path.join on Python) to accommodate different operating systems. Error handling is important for situations such as a missing file, invalid Python syntax, or runtime exceptions within the script. Because executing arbitrary files can be unsafe, such utilities are typically restricted to trusted sources or sandboxed environments.

In relation to Python’s standard library, runpyrunpathfilename contrasts with importing a module via importlib, because run_path executes a file as a script rather than as a module. It remains a useful pattern for lightweight, on-the-fly script execution in controlled workflows.