pygame why init() & not __init__()?

[ryfoa6]

Why does Pygame use init() to initialize all imported modules instead of __init__()?
What's the difference between init() and __init__()?

[buran]

init() is regular function, just as any other.
__init__() is a special function, part of a set of functions (so called dunders, from double-undercore) that are used to customize your own classes. In the case __init__() is called at class instantiation.