# You can import and rename things to work with them internally, # without exposing them publicly or to avoid naming conflicts! from atomicwrites import atomic_write as _backend_writer, AtomicWriter # You probably need to inspect and override some internals of the package class SuffixWriter(AtomicWriter): def get_fileobject(self, dir=None, **kwargs): # Override functions like this ... @contextmanager def atomic_write(file, mode='w', as_file=True, new_default='asdf', **kwargs): # You can override things just fine... with _backend_writer(some_path, writer_cls=SuffixWriter, **kwargs) as f: # Don't forget to handle the as_file logic! yield f

goal and requirement:

import and apply python lib atomic_wrtie to this module; this module would have the same result without using atomic_write directly