python attributeError 'SSLTimeoutError' after upgrade

Description: Ubuntu 14.04.2 LTS

I use use a nagios script called check_esxi_hardware.py to check several esxi platforms.
After last uBuntu upgrade it stopped working giving the following error:

##########
Traceback (most recent call last):
  File "/usr/lib/nagios/plugins/check_esxi_hardware.py", line 619, in <module>
    instance_list = wbemclient.EnumerateInstances(classe)
  File "/usr/lib/pymodules/python2.7/pywbem/cim_operations.py", line 421, in EnumerateInstances
    **params)
  File "/usr/lib/pymodules/python2.7/pywbem/cim_operations.py", line 183, in imethodcall
    no_verification = self.no_verification)
  File "/usr/lib/pymodules/python2.7/pywbem/cim_http.py", line 268, in wbem_request
    h.endheaders()
  File "/usr/lib/python2.7/httplib.py", line 969, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python2.7/httplib.py", line 829, in _send_output
    self.send(msg)
  File "/usr/lib/pymodules/python2.7/pywbem/cim_http.py", line 115, in send
    self.connect()
  File "/usr/lib/pymodules/python2.7/pywbem/cim_http.py", line 167, in connect
    except ( Err.SSLError, SSL.SSLError, SSL.SSLTimeoutError
AttributeError: 'module' object has no attribute 'SSLTimeoutError'
############

- 'module' here refers to m2crypto. This look like an incompatibility between
the versions of python-m2crypto and python-pywbem.

- python-m2crypto did not exist before the upgrade

Here is the comparison of installed python packages, before and after the upgrade, and

$ diff python-packages-no-problem.txt python-packages-problem.txt
2d1
< ii libfile-copy-recursive-perl 0.38-1 all Perl extension for recursively copying files and directories
8d6
< rc libpython3.3-minimal:amd64 3.3.2-7ubuntu3.1 amd64 Minimal subset of the Python language (version 3.3)
19a18
> ii python-m2crypto 0.21.1-3ubuntu5 amd64 a crypto and SSL toolkit for Python
21d19
< ii python-newt 0.52.15-2ubuntu5 amd64 NEWT module for Python
27,28c25,26
< ii python-pywbem 0.7.0-4 all Python WBEM Client and Provider Interface
< ii python-requests 2.2.1-1ubuntu0.1 all elegant and simple HTTP library for Python, built for human beings
---
> ii python-pywbem 0.7.0-4ubuntu1~14.04.1 all Python WBEM Client and Provider Interface
> ii python-requests 2.2.1-1ubuntu0.2 all elegant and simple HTTP library for Python, built for human beings
51a50
> ii python3-newt 0.52.15-2ubuntu5 amd64 NEWT module for Python3
56,57d54
< rc python3.3 3.3.2-7ubuntu3.1 amd64 Interactive high-level object-oriented language (version 3.3)
< rc python3.3-minimal 3.3.2-7ubuntu3.1 amd64 Minimal subset of the Python language (version 3.3)