python 2.7 - ImportError: No module named cosmolopy.distance and using pip error: unable to find vcvarsall.bat -

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i need cosmolopy finish running program shows error ( importerror: no module named cosmolopy.distance). tried installing cosmolopy using pip , error comes up. how solve this? using python version 2.7.3.

creating build\lib.win32-2.7\cosmolopy\eh

copying cosmolopy\eh\power.py -> build\lib.win32-2.7\cosmolopy\eh

copying cosmolopy\eh_init_.py -> build\lib.win32-2.7\cosmolopy\eh

running build_ext

building 'cosmolopy.eh._power' extension

error: unable find vcvarsall.bat


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