upgrade of python-3parclient from 4.2.5 to 4.2.7 is failing

[rakeshcn]

On Ubuntu 16.04

lsb_release -a

No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 16.04.2 LTS
Release: 16.04
Codename: xenial

pip install -U python-3parclient

Collecting python-3parclient
Downloading https://files.pythonhosted.org/packages/9e/03/a236d0efec29db8e8765681d81b1f6aad5c040490cf1425c2236620f0fae/python-3parclient-4.2.7.tar.gz (109kB)
100% |████████████████████████████████| 112kB 122kB/s
Requirement already up-to-date: paramiko in /usr/local/lib/python2.7/dist-packages (from python-3parclient)
Collecting eventlet (from python-3parclient)
Downloading https://files.pythonhosted.org/packages/75/5c/09d277692cb7d44258062a46b553067662b530266776e5cb0306e7a83770/eventlet-0.23.0-py2.py3-none-any.whl (409kB)
100% |████████████████████████████████| 419kB 169kB/s
Requirement already up-to-date: requests in /usr/local/lib/python2.7/dist-packages (from python-3parclient)
Requirement already up-to-date: pyasn1>=0.1.7 in /usr/local/lib/python2.7/dist-packages (from paramiko->python-3parclient)
Requirement already up-to-date: bcrypt>=3.1.3 in /usr/local/lib/python2.7/dist-packages (from paramiko->python-3parclient)
Requirement already up-to-date: cryptography>=1.5 in /usr/local/lib/python2.7/dist-packages (from paramiko->python-3parclient)
Requirement already up-to-date: pynacl>=1.0.1 in /usr/local/lib/python2.7/dist-packages (from paramiko->python-3parclient)
Requirement already up-to-date: enum34; python_version < "3.4" in /usr/local/lib/python2.7/dist-packages (from eventlet->python-3parclient)
Requirement already up-to-date: greenlet>=0.3 in /usr/local/lib/python2.7/dist-packages (from eventlet->python-3parclient)
Requirement already up-to-date: certifi>=2017.4.17 in /usr/local/lib/python2.7/dist-packages (from requests->python-3parclient)
Requirement already up-to-date: chardet<3.1.0,>=3.0.2 in /usr/local/lib/python2.7/dist-packages (from requests->python-3parclient)
Requirement already up-to-date: idna<2.7,>=2.5 in /usr/local/lib/python2.7/dist-packages (from requests->python-3parclient)
Requirement already up-to-date: urllib3<1.23,>=1.21.1 in /usr/local/lib/python2.7/dist-packages (from requests->python-3parclient)
Requirement already up-to-date: six>=1.4.1 in /usr/local/lib/python2.7/dist-packages (from bcrypt>=3.1.3->paramiko->python-3parclient)
Requirement already up-to-date: cffi>=1.1 in /usr/local/lib/python2.7/dist-packages (from bcrypt>=3.1.3->paramiko->python-3parclient)
Requirement already up-to-date: asn1crypto>=0.21.0 in /usr/local/lib/python2.7/dist-packages (from cryptography>=1.5->paramiko->python-3parclient)
Requirement already up-to-date: ipaddress; python_version < "3" in /usr/local/lib/python2.7/dist-packages (from cryptography>=1.5->paramiko->python-3parclient)
Requirement already up-to-date: pycparser in /usr/local/lib/python2.7/dist-packages (from cffi>=1.1->bcrypt>=3.1.3->paramiko->python-3parclient)
Building wheels for collected packages: python-3parclient
Running setup.py bdist_wheel for python-3parclient ... done
Stored in directory: /root/.cache/pip/wheels/12/ac/9c/48f7783850b3934dcd5483a252fbaa83f3f63674e8da0c92e6
Successfully built python-3parclient
Installing collected packages: eventlet, python-3parclient
Found existing installation: eventlet 0.22.1
Uninstalling eventlet-0.22.1:
Successfully uninstalled eventlet-0.22.1
Found existing installation: python-3parclient 4.2.5
Uninstalling python-3parclient-4.2.5:
Successfully uninstalled python-3parclient-4.2.5
Successfully installed eventlet python-3parclient
Traceback (most recent call last):
File "/usr/bin/pip", line 11, in
sys.exit(main())
File "/usr/lib/python2.7/dist-packages/pip/init.py", line 217, in main
return command.main(cmd_args)
File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 246, in main
pip_version_check(session)
File "/usr/lib/python2.7/dist-packages/pip/utils/outdated.py", line 102, in pip_version_check
installed_version = get_installed_version("pip")
File "/usr/lib/python2.7/dist-packages/pip/utils/init.py", line 866, in get_installed_version
working_set = pkg_resources.WorkingSet()
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 619, in init
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 675, in add_entry
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 1942, in find_eggs_in_zip
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 1463, in has_metadata
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 1824, in _has
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 1704, in zipinfo
File "/usr/share/python-wheels/pkg_resources-0.0.0-py2.py3-none-any.whl/pkg_resources/init.py", line 1644, in load
OSError: [Errno 2] No such file or directory: '/usr/local/lib/python2.7/dist-packages/python_3parclient-4.2.5-py2.7.egg'