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