AttributeError: 'module' object has no python attribute

I am new to python and tried to install python 2.7.9 following the steps below here . The installation failed with the following error:

python make: *** [libinstall] Error 1

      

        
        
        
      

    

I tried to reinstall the previous version of python:

sudo apt-get install --reinstall  python2.7-dev

      

        
        
        
      

    

The installation went fine. However, now, when I try to import hashlib , I get the following errors:

Traceback (most recent call last):
  File "./server.py", line 5, in <module>
    import hashlib
  File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
    _hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'

      

        
        
        
      

    

I also cannot install any packages using pip as there is only one output available:

Traceback (most recent call last):
  File "/usr/bin/pip", line 5, in <module>
    from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

      

        
        
        
      

    

I installed python-setuptools :

sudo apt-get install python-setuptools

      

        
        
        
      

    

pip still provides the same output regardless of input. After this question, I ran:

curl -O https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py
chmod +x ez_setup.py
python ez_setup.py

      

        
        
        
      

    

Output:

Traceback (most recent call last):
  File "ez_setup.py", line 19, in <module>
    import tempfile
  File "/usr/lib/python2.7/tempfile.py", line 35, in <module>
    from random import Random as _Random
  File "/usr/lib/python2.7/random.py", line 49, in <module>
    import hashlib as _hashlib
  File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
    _hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'

      

        
        
        
      

    

Where is the problem?

Edit # 1:

The output of sudo apt-get install --reinstall python2.7-dev looks ok:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  libjs-sphinxdoc linux-headers-generic linux-image-generic
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 1 reinstalled, 0 to remove and 310 not upgraded.
Need to get 0 B/269 kB of archives.
After this operation, 0 B of additional disk space will be used.
(Reading database ... 219657 files and directories currently installed.)
Preparing to unpack .../python2.7-dev_2.7.6-8_amd64.deb ...
Unpacking python2.7-dev (2.7.6-8) over (2.7.6-8) ...
Processing triggers for man-db (2.6.7.1-1) ...
Setting up python2.7-dev (2.7.6-8) ...

      

        
        
        
      

    

Edit # 2:

I found this question that solves a similar problem. It points to this thread, which checkinstall uses to extract all written files and create a .deb package from them:

sudo apt-get install checkinstall  # install the checkinstall package
cd /home/user/Python-2.7.9
sudo checkinstall -D --fstrans=no make install   # make the deb package

      

        
        
        
      

    

When running the last command, the provided output is identical to the one given by make install :

...
Listing /usr/lib/python2.7/xml/parsers ...
Compiling /usr/lib/python2.7/xml/parsers/__init__.py ...
Compiling /usr/lib/python2.7/xml/parsers/expat.py ...
Listing /usr/lib/python2.7/xml/sax ...
Compiling /usr/lib/python2.7/xml/sax/__init__.py ...
Compiling /usr/lib/python2.7/xml/sax/_exceptions.py ...
Compiling /usr/lib/python2.7/xml/sax/expatreader.py ...
Compiling /usr/lib/python2.7/xml/sax/handler.py ...
Compiling /usr/lib/python2.7/xml/sax/saxutils.py ...
Compiling /usr/lib/python2.7/xml/sax/xmlreader.py ...
Compiling /usr/lib/python2.7/xmllib.py ...
Compiling /usr/lib/python2.7/xmlrpclib.py ...
Compiling /usr/lib/python2.7/zipfile.py ...
make: *** [libinstall] Error 1

      

        
        
        
      

    

Edit # 3:

It looks like all scripts may not work. I am working on signature algorithms (used in bitcoin) and the tools mentioned here (bu, tx) are outputting the same error:

 Traceback (most recent call last):
  File "/usr/local/bin/bu", line 5, in <module>
    from pkg_resources import load_entry_point
ImportError: No module named pkg_resources

      

        
        
        
      

    

Edit # 4:

I also tried the mentioned approach here . The python get-pip.py output is as follows:

Traceback (most recent call last):
  File "get-pip.py", line 28, in <module>
    import tempfile
  File "/usr/lib/python2.7/tempfile.py", line 35, in <module>
    from random import Random as _Random
  File "/usr/lib/python2.7/random.py", line 49, in <module>
    import hashlib as _hashlib
  File "/usr/lib/python2.7/hashlib.py", line 138, in <module>
    _hashlib.openssl_md_meth_names)
AttributeError: 'module' object has no attribute 'openssl_md_meth_names'

      

        
        
        
      

    

If I comment out the line:

import tempfile

      

        
        
        
      

    

then execution continues until line 141:

Traceback (most recent call last):
  File "get-pip.py", line 19892, in <module>
    main()
  File "get-pip.py", line 141, in main
    tmpdir = tempfile.mkdtemp()
NameError: global name 'tempfile' is not defined

      

        
        
        
      

    

means import of the following libraries:

import os.path
import pkgutil
import shutil
import sys
import struct
# import tempfile

      

        
        
        
      

    

is doing well. This leads me to believe that the python2.7.9 installation is only partially complete (as is reasonably suggested in the comments on this question).

Edit # 5:

I repeated the setup and compilation steps:

./configure --prefix=/usr       \
            --enable-shared     \
            --with-system-expat \
            --with-system-ffi   \
            --enable-unicode=ucs4 &&
make

      

        
        
        
      

    

The lines are terminated with:

Python build finished, but the necessary bits to build these modules were not found:
bsddb185           dl                 imageop         
sunaudiodev                                           
To find the necessary bits, look in setup.py in detect_modules() for the module name.

running build_scripts

      

        
        
        
      

    

Are these modules essential?