My python doesn't work
<p>I accidentally replace python binary files located at /usr/local/bin/. Since then, I can't run any python script or even run the interactive mode of python. </p>

<pre><code>$ python
Traceback (most recent call last):
  File "/usr/lib/python2.7/site.py", line 562, in &lt;module&gt;
    main()
  File "/usr/lib/python2.7/site.py", line 544, in main
    known_paths = addusersitepackages(known_paths)
  File "/usr/lib/python2.7/site.py", line 271, in addusersitepackages
    user_site = getusersitepackages()
  File "/usr/lib/python2.7/site.py", line 246, in getusersitepackages
    user_base = getuserbase() # this will also set USER_BASE
  File "/usr/lib/python2.7/site.py", line 236, in getuserbase
    USER_BASE = get_config_var('userbase')
  File "/usr/lib/python2.7/sysconfig.py", line 558, in get_config_var
    return get_config_vars().get(name)
  File "/usr/lib/python2.7/sysconfig.py", line 457, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python2.7/sysconfig.py", line 303, in _init_posix
    makefile = _get_makefile_filename()
  File "/usr/lib/python2.7/sysconfig.py", line 297, in _get_makefile_filename
    return os.path.join(get_path('platstdlib').replace("/usr/local","/usr",1), "config" + (sys.pydebug and "_d" or ""), "Makefile")
AttributeError: 'module' object has no attribute 'pydebug'
</code></pre>

<p>I have see related questions with the "AttributeError: 'module' object has no attribute 'pydebug' " error, but I still can't figure out how to solve this problem.</p>

<p>When I try to re-install appears the same error:</p>

<pre><code>$ sudo apt-get install python2.7-minimal
[sudo] password for : 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
python2.7-minimal is already the newest version.
The following packages were automatically installed and are no longer required:
  libgsasl7 libmailutils2 libntlm0
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 402 not upgraded.
4 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue [Y/n]? Y
Setting up python2.7-minimal (2.7.1-5ubuntu2.2) ...
Traceback (most recent call last):
  File "/usr/lib/python2.7/site.py", line 562, in &lt;module&gt;
    main()
  File "/usr/lib/python2.7/site.py", line 544, in main
    known_paths = addusersitepackages(known_paths)
  File "/usr/lib/python2.7/site.py", line 271, in addusersitepackages
    user_site = getusersitepackages()
  File "/usr/lib/python2.7/site.py", line 246, in getusersitepackages
    user_base = getuserbase() # this will also set USER_BASE
  File "/usr/lib/python2.7/site.py", line 236, in getuserbase
    USER_BASE = get_config_var('userbase')
  File "/usr/lib/python2.7/sysconfig.py", line 558, in get_config_var
    return get_config_vars().get(name)
  File "/usr/lib/python2.7/sysconfig.py", line 457, in get_config_vars
    _init_posix(_CONFIG_VARS)
  File "/usr/lib/python2.7/sysconfig.py", line 303, in _init_posix
    makefile = _get_makefile_filename()
  File "/usr/lib/python2.7/sysconfig.py", line 297, in _get_makefile_filename
    return os.path.join(get_path('platstdlib').replace("/usr/local","/usr",1), "config" + (sys.pydebug and "_d" or ""), "Makefile")
AttributeError: 'module' object has no attribute 'pydebug'
dpkg: error processing python2.7-minimal (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of python2.7:
 python2.7 depends on python2.7-minimal (= 2.7.1-5ubuntu2.2); however:
  Package python2.7-minimal is not configured yet.
dpkg: error processing python2.7 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of libpython2.7:
 libpython2.7 depends on python2.7 (= 2.7.1-5ubuntu2.2); however:
  Package python2.7 is not configured yet.
dpkg: error processing libpython2.7 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python2.7-dev:
 python2.7-dev depends on python2.7 (= 2.7.1-5ubuntu2.2); however:
  Package python2.7 is not configured yet.
 python2.7-dev depeNo apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                                             No apport report written because the error message indicates its a followup error from a previous failure.
                                                                          No apport report written because MaxReports is reached already
                                                                                                                                        nds on libpython2.7 (= 2.7.1-5ubuntu2.2); however:
  Package libpython2.7 is not configured yet.
dpkg: error processing python2.7-dev (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 python2.7-minimal
 python2.7
 libpython2.7
 python2.7-dev
E: Sub-process /usr/bin/dpkg returned an error code (1)
</code></pre>
