Issue with running commands in starcluster README

[kk663]

I run all the steps in the starcluster README up to this step:
starcluster start mycluster

I get the error below on a Mac. Could you please tell me what is causing the error?

error occurred in job (id=node001): 'EntryPoint' object has no attribute 'resolve'
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/threadpool.py", line 48, in run
job.run()
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/threadpool.py", line 75, in run
r = self.method(_self.args, *_self.kwargs)
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/cluster.py", line 1429, in
self.pool.map(lambda n: n.wait(interval=self.refresh_interval), nodes,
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/node.py", line 1019, in wait
while not self.is_up():
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/node.py", line 1025, in is_up
if not self.is_ssh_up():
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/node.py", line 1010, in is_ssh_up
return self.ssh.transport is not None
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/node.py", line 1070, in ssh
private_key=self.key_location)
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/sshutils.py", line 78, in init
self._pkey = self.load_private_key(private_key, private_key_pass)
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/sshutils.py", line 89, in load_private_key
pkey = self._load_rsa_key(private_key, private_key_pass)
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/sshutils.py", line 184, in _load_rsa_key
passphrase=private_key_pass)
File "/Library/Python/2.7/site-packages/StarCluster-0.95.6-py2.7.egg/starcluster/sshutils.py", line 816, in get_rsa_key
password=passphrase)
File "build/bdist.macosx-10.11-intel/egg/paramiko/pkey.py", line 217, in from_private_key
key = cls(file_obj=file_obj, password=password)
File "build/bdist.macosx-10.11-intel/egg/paramiko/rsakey.py", line 42, in init
self._from_private_key(file_obj, password)
File "build/bdist.macosx-10.11-intel/egg/paramiko/rsakey.py", line 168, in _from_private_key
self._decode_key(data)
File "build/bdist.macosx-10.11-intel/egg/paramiko/rsakey.py", line 173, in _decode_key
data, password=None, backend=default_backend()
File "/Library/Python/2.7/site-packages/cryptography-1.4-py2.7-macosx-10.11-intel.egg/cryptography/hazmat/backends/init.py", line 35, in default_backend
_default_backend = MultiBackend(_available_backends())
File "/Library/Python/2.7/site-packages/cryptography-1.4-py2.7-macosx-10.11-intel.egg/cryptography/hazmat/backends/init.py", line 22, in _available_backends
"cryptography.backends"
AttributeError: 'EntryPoint' object has no attribute 'resolve'

[vttrifonov]

same here. any solution to this?

surprisingly, running (??)

python -v /path-to-starcluster/starcluster start mycluster

works every now and then (i was trying to see what is happening in python and it magically went through). not always though...

[vttrifonov]

It went down to upgrading Python packages in /System and I could not figure out how to do it nicely (I am on Mac OS X El Capitain). So I ditched the default Mac OS X python installation and went with a new one from MacPorts which solved the problem.

[sanghamd]

I am having this same error in mac yosemite. Can you tell me how you exactly upgraded the python packages in mac?

[vasisht]

You would just need to upgrade setuptools.
sudo pip install -U setuptools