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All of the sudden, all windows based python stopped working. qtconsole and spyder. Also, conda, pip, and easy_setup are issuing error messages. Below is the feedback I am getting. I uninstalled and reinstalled the package that was working perfectly fine. Also, downloaded Anaconda-2.2.0-Windows-x86_64.exe. 
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ipython qtconsole:
-------------------
Error in sys.excepthook:
Traceback (most recent call last):
 File "D:\Anaconda\lib\site-packages\IPython\qt\console\qtconsoleapp.py", line 45, in gui_excepthook
 old_excepthook(exctype, value, tb)
TypeError: 'NoneType' object is not callable
Original exception was:
Traceback (most recent call last):
 File "D:\Anaconda\Scripts\ipython-script.py", line 5, in <module>
 sys.exit(start_ipython())
 File "D:\Anaconda\lib\site-packages\IPython\__init__.py", line 120, in start_ipython
 return launch_new_instance(argv=argv, **kwargs)
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 573, in launch_instance
 app.initialize(argv)
 File "<string>", line 2, in initialize
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 75, in catch_config_error
 return method(app, *args, **kwargs)
 File "D:\Anaconda\lib\site-packages\IPython\terminal\ipapp.py", line 321, in initialize
 super(TerminalIPythonApp, self).initialize(argv)
 File "<string>", line 2, in initialize
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 75, in catch_config_error
 return method(app, *args, **kwargs)
 File "D:\Anaconda\lib\site-packages\IPython\core\application.py", line 369, in initialize
 self.parse_command_line(argv)
 File "D:\Anaconda\lib\site-packages\IPython\terminal\ipapp.py", line 316, in parse_command_line
 return super(TerminalIPythonApp, self).parse_command_line(argv)
 File "<string>", line 2, in parse_command_line
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 75, in catch_config_error
 return method(app, *args, **kwargs)
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 471, in parse_command_line
 return self.initialize_subcommand(subc, subargv)
 File "<string>", line 2, in initialize_subcommand
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 75, in catch_config_error
 return method(app, *args, **kwargs)
 File "D:\Anaconda\lib\site-packages\IPython\config\application.py", line 402, in initialize_subcommand
 subapp = import_item(subapp)
 File "D:\Anaconda\lib\site-packages\IPython\utils\importstring.py", line 42, in import_item
 module = __import__(package, fromlist=[obj])
 File "D:\Anaconda\lib\site-packages\IPython\qt\console\qtconsoleapp.py", line 56, in <module>
 from IPython.qt.console.ipython_widget import IPythonWidget
 File "D:\Anaconda\lib\site-packages\IPython\qt\console\ipython_widget.py", line 23, in <module>
 from .frontend_widget import FrontendWidget
 File "D:\Anaconda\lib\site-packages\IPython\qt\console\frontend_widget.py", line 25, in <module>
 from .pygments_highlighter import PygmentsHighlighter
 File "D:\Anaconda\lib\site-packages\IPython\qt\console\pygments_highlighter.py", line 3, in <module>
 from pygments.formatters.html import HtmlFormatter
 File "D:\Anaconda\lib\site-packages\pygments\formatters\__init__.py", line 19, in <module>
 from pygments.plugin import find_plugin_formatters
 File "D:\Anaconda\lib\site-packages\pygments\plugin.py", line 39, in <module>
 import pkg_resources
 File "D:\Anaconda\lib\site-packages\setuptools-14.3-py2.7.egg\pkg_resources\__init__.py", line 1366, in <module>
 File "D:\Anaconda\lib\site-packages\setuptools-14.3-py2.7.egg\pkg_resources\__init__.py", line 1370, in MarkerEvaluation
AttributeError: 'module' object has no attribute 'python_version'
===============================================
D:\>pip
---------
Traceback (most recent call last):
 File "D:\Anaconda\Scripts\pip-script.py", line 3, in <module>
 from pip import main
 File "D:\Anaconda\lib\site-packages\pip\__init__.py", line 13, in <module>
 from pip.utils import get_installed_distributions, get_prog
 File "D:\Anaconda\lib\site-packages\pip\utils\__init__.py", line 22, in <module>
 from pip._vendor import pkg_resources, six
 File "D:\Anaconda\lib\site-packages\pip\_vendor\__init__.py", line 61, in load_module
 __import__(name)
 File "D:\Anaconda\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1316, in <module>
 class MarkerEvaluation(object):
 File "D:\Anaconda\lib\site-packages\pip\_vendor\pkg_resources\__init__.py", line 1320, in MarkerEvaluation
 'python_full_version': platform.python_version,
AttributeError: 'module' object has no attribute 'python_version'
========================================================
D:\>conda
----------
Traceback (most recent call last):
 File "D:\Anaconda\Scripts\conda-script.py", line 2, in <module>
 from conda.cli import main
 File "D:\Anaconda\lib\site-packages\conda\cli\__init__.py", line 8, in <module>
 from conda.cli.main import main
 File "D:\Anaconda\lib\site-packages\conda\cli\main.py", line 45, in <module>
 from conda.cli import common
 File "D:\Anaconda\lib\site-packages\conda\cli\common.py", line 11, in <module>
 import conda.config as config
 File "D:\Anaconda\lib\site-packages\conda\config.py", line 12, in <module>
 from platform import machine
ImportError: cannot import name machine
====================================================
D:\>spyder
----------
'module' object has no attribute 'python_version'
Traceback (most recent call last):
 File "D:\Anaconda\Scripts\spyder-script.py", line 1, in <module>
 from spyderlib import start_app
 File "D:\Anaconda\lib\site-packages\spyderlib\start_app.py", line 14, in <module>
 from spyderlib.config import CONF
 File "D:\Anaconda\lib\site-packages\spyderlib\config.py", line 22, in <module>
 from spyderlib.utils import iofuncs, codeanalysis
 File "D:\Anaconda\lib\site-packages\spyderlib\utils\iofuncs.py", line 26, in <module>
 import pandas as pd
 File "D:\Anaconda\lib\site-packages\pandas\__init__.py", line 7, in <module>
 from . import hashtable, tslib, lib
 File "pandas\tslib.pyx", line 46, in init pandas.tslib (pandas\tslib.c:79899)
 File "D:\Anaconda\lib\site-packages\pytz\__init__.py", line 29, in <module>
 from pkg_resources import resource_stream
 File "D:\Anaconda\lib\site-packages\setuptools-14.3-py2.7.egg\pkg_resources\__init__.py", line 1366, in <module>
 File "D:\Anaconda\lib\site-packages\setuptools-14.3-py2.7.egg\pkg_resources\__init__.py", line 1370, in MarkerEvaluation
AttributeError: 'module' object has no attribute 'python_version'
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