Instalé Anaconda con Python 2.7.7.
Sin embargo, cada vez que ejecuto "importar pandas" me sale el error:
"ImportError: C extension: y not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace' to build the C extensions first."
Intenté ejecutar el comando sugerido pero decía que

skipping 'pandas\index.c' Cython extension (up-to-date)      
skipping 'pandas\src\period.c' Cython extension (up-to-date) 
skipping 'pandas\algos.c' Cython extension (up-to-date)      
skipping 'pandas\lib.c' Cython extension (up-to-date)        
skipping 'pandas\tslib.c' Cython extension (up-to-date)      
skipping 'pandas\parser.c' Cython extension (up-to-date)     
skipping 'pandas\hashtable.c' Cython extension (up-to-date)  
skipping 'pandas\src\sparse.c' Cython extension (up-to-date) 
skipping 'pandas\src\testing.c' Cython extension (up-to-date)
skipping 'pandas\msgpack.cpp' Cython extension (up-to-date)

¿Alguien ha encontrado esto antes y ha encontrado una solución?