pip commands fail with a python traceback and error undefined symbol: _PyErr_ReplaceException ?

Issue

• Getting error while trying to install requests via pip
• pip installation fails for the requests module
• Errors while running pip module installations
• pip command fails with Traceback as follows,

[root@PIP ~]# /opt/rh/python27/root/usr/bin/python test1.py
Traceback (most recent call last):
  File "test1.py", line 2, in <module>
    import requests
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/requests/__init__. py", line 43, in <module>
    import urllib3
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/__init__.py", line 8, in <module>
    from .connectionpool import (
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/connectionpool.py", line 11, in <module>
    from .exceptions import (
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/exceptions.py", line 2, in <module>
    from .packages.six.moves.http_client import (
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/packages/six.py", line 203, in load_module
    mod = mod._resolve()
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/packages/six.py", line 115, in _resolve
    return _import_module(self.mod)
  File "/opt/rh/python27/root/usr/lib/python2.7/site-packages/urllib3/packages/six.py", line 82, in _import_module
    __import__(name)
  File "/opt/rh/python27/root/usr/lib64/python2.7/httplib.py", line 80, in <module>
    import mimetools
  File "/opt/rh/python27/root/usr/lib64/python2.7/mimetools.py", line 6, in <module>
    import tempfile
  File "/opt/rh/python27/root/usr/lib64/python2.7/tempfile.py", line 32, in <module>
    import io as _io
  File "/opt/rh/python27/root/usr/lib64/python2.7/io.py", line 51, in <module>
    import _io
ImportError: /opt/rh/python27/root/usr/lib64/python2.7/lib-dynload/_io.so: undefined symbol: _PyErr_ReplaceException