Can't connect to HTTPS sites.

Traceback:

Exception in thread Thread-10:
Traceback (most recent call last):
File "./threading.py", line 901, in _bootstrap_inner
File "/Users/me/Library/Application Support/Sublime Text 3/Packages/Sublpress/plugin.py", line 77, in run
common.sp_wp = Client(self.url, self.username, self.password)
File "/Users/me/Library/Application Support/Sublime Text 3/Packages/Sublpress/wordpress_xmlrpc/base.py", line 151, in init
self.supported_methods = self.server.mt.supportedMethods()
File "./xmlrpc/client.py", line 1090, in call
File "./xmlrpc/client.py", line 1422, in __request
TypeError: object of type 'NoneType' has no len()