Error message after working for perfectly for an hour

[JonFranco]

First time writing a github issue, so please forgive if this is an obvious fix. I downloaded your software and everything was working well for an hour or two. Then my laptop battery died, and vim started throwing the following error message when I started trying to use the plugin again. It succesfully establishes a connection to the extempore server, but cannot evaluate an expression without throwing an error.

Traceback (most recent call last):
File "", line 1, in
File "/Users/jon/.vim/plugged/extempore.vim/python/extempore2.py", line 68, in
send_enclosing_block
send_string(get_enclosing_block())
File "/Users/jon/.vim/plugged/extempore.vim/python/extempore2.py", line 42, in
send_string
telnet.write(value, 'utf-8')
TypeError: write() takes exactly 2 arguments (3 given)

Using MacOS 10.13.5, Python 2.7.10, Python 3.7.0 if that helps