Source code for bag.streams

"""Functions that use streams (open files)."""


[docs]def get_file_size(stream) -> int: """Given a seekable file, return its size.""" assert stream.seekable(), 'Streams of type {} are not seekable'.format( type(stream)) stream.seek(0, 2) # Seek to the end of the stream size = stream.tell() # Get the position of EOF stream.seek(0) # Reset the stream position to the beginning return size