a longer docstring

[Gribouillis]

I've been experimenting and you can use parentheses and implicit string concatenation

>>> def func():
...     ("This is the beginning of a very long docstring which must stand on one line"
...     " now the rest of this very long docstring hope it will be allright.")
...     print('Hello from func()')
... 
>>> func()
Hello from func()
>>> func.__doc__
'This is the beginning of a very long docstring which must stand on one line now the rest of this very long docstring hope it will be allright.'

The uncommon part is that usually docstrings have a reasonably sized first line and may have other lines.