+def recv_chunk(sock): # -> bytearray:
+
+ buf = sock.recv(8) # Scan for an up to 16MiB chunk size (0xffffff).
+ crlf = buf.find(b'\r\n') # Find the HTTP chunk size.
+
+ if crlf > 0: # If there is a length, then process it
+
+ remaining = int(buf[:crlf], 16) # Decode the chunk size.
+
+ start = crlf + 2 # Add in the length of the header's CRLF pair.
+ end = len(buf) - start
+
+ chunk = bytearray(remaining)
+
+ if remaining <= 2: # E.g. an HTTP chunk with just a keep-alive delimiter.
+ chunk[:remaining] = buf[start:start + remaining]
+ # There are several edge cases (remaining == [3-6]) as the chunk size exceeds the length
+ # of the initial read of 8 bytes. With Twitter, these do not, in practice, occur. The
+ # shortest JSON message starts with '{"limit":{'. Hence, it exceeds in size the edge cases
+ # and eliminates the need to address them.
+ else: # There is more to read in the chunk.
+ chunk[:end] = buf[start:]
+ chunk[end:] = sock.recv(remaining - end)
+ sock.recv(2) # Read the trailing CRLF pair. Throw it away.
+
+ return chunk
+
+ return bytearray()
+
+## recv_chunk()
+
+