Errores al construir / instalar el módulo C para Python 2.7

Estoy intentando obtener los siguientes errores al intentar instalar / compilarherramientas para python (información de la versión)

ActivePython 2.7.2.5 (ActiveState Software Inc.) based on
Python 2.7.2 (default, Jun 24 2011, 12:22:14) [MSC v.1500 64 bit (AMD64)] on win32
SO: Windows 7 Professional de 64 bits (Service Pack 1)Instalado: Microsoft Visual C ++ 2008 Express Edition

Error:

building 'deap.cTools' extension
Traceback (most recent call last):
  File "setup.py", line 40, in <module>
    cmdclass = {'build_py': build_py}
  File "C:\Python27\lib\distutils\core.py", line 152, in setup
    dist.run_commands()
  File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Python27\lib\distutils\command\install.py", line 563, in run
    self.run_command('build')
  File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Python27\lib\distutils\command\build.py", line 127, in run
    self.run_command(cmd_name)
  File "C:\Python27\lib\distutils\cmd.py", line 326, in run_command
    self.distribution.run_command(command)
  File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Python27\lib\distutils\command\build_ext.py", line 340, in run
    self.build_extensions()
  File "C:\Python27\lib\distutils\command\build_ext.py", line 449, in build_extensions
    self.build_extension(ext)
  File "C:\Python27\lib\distutils\command\build_ext.py", line 499, in build_extension
    depends=ext.depends)
  File "C:\Python27\lib\distutils\msvc9compiler.py", line 473, in compile
    self.initialize()
  File "C:\Python27\lib\distutils\msvc9compiler.py", line 383, in initialize
    vc_env = query_vcvarsall(VERSION, plat_spec)
  File "C:\Python27\lib\distutils\msvc9compiler.py", line 299, in query_vcvarsall
    raise ValueError(str(list(result.keys())))
ValueError: [u'path']

He instalado PyWin como se sugiere enaquí, pero no sirvió de nada. Apreciaría ayuda para resolver este problema.

Editar

El mismo problema surge al intentar instalarscikit-learn

  File "C:\Python27\lib\distutils\msvc9compiler.py", line 299, in query_vcvarsall
    raise ValueError(str(list(result.keys())))
ValueError: [u'path']

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