Traceback (most recent call last):

 "D:\Anaconda3\envs\py35\lib\site-packages\neo4j\v1\session.py", line 127, in session
session = self.session_pool.pop()IndexError: pop from an empty deque
Traceback (most recent call last):

 "/usr/local/Cellar/mycli/1.5.1/libexec/bin/mycli", line 9, in <module>
load_entry_point('mycli==1.5.1', 'console_scripts', 'mycli')()

 "/usr/local/Cellar/mycli/1.5.1/libexec/vendor/lib/python2.7/site-packages/click/core.py", line 700, in **call**
return self.main(_args, *_kwargs)

 "/usr/local/Cellar/mycli/1.5.1/libexec/vendor/lib/python2.7/site-packages/click/core.py", line 680, in main
rv = self.invoke(ctx)

 "/usr/local/Cellar/mycli/1.5.1/libexec/vendor/lib/python2.7/site-packages/click/core.py", line 873, in invoke
return ctx.invoke(self.callback, *_ctx.params)

 "/usr/local/Cellar/mycli/1.5.1/libexec/vendor/lib/python2.7/site-packages/click/core.py", line 508, in invoke
return callback(_args, **kwargs)

 "/usr/local/Cellar/mycli/1.5.1/libexec/lib/python2.7/site-packages/mycli/main.py", line 639, in cli
mycli.connect(database, user, password, host, port, socket)

 "/usr/local/Cellar/mycli/1.5.1/libexec/lib/python2.7/site-packages/mycli/main.py", line 292, in connect
port = int(port or cnf['port']) or 3306TypeError: int() argument must be a string or a number, not 'NoneType'