Significance of double underscores in Python filename

Question

Other than for __init__.py files, do the leading and trailing double underscores have any significance in a file name? For example, is __model__.py in any way more significant than model.py?

Answer 1

Double underscores in filenames other than __init__.py and __main__.py have no significance to Python itself, but frameworks may use them to indicate/identify various things.