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.  

===================
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'
================================================================

This is very unlikely to be a core python bug.  Please post your problem to the python-list mailing list, where you are more likely to get help in solving your problem.