I am installed some modules for python, numpy, biopython, mx.. on my mac (10.10.5). I started the Terminal and tried to import them and it works.
After that I installed Spyder, when I try to import bumpy in Spyder it works but biopython (from Bio import *) does not work -> (ImportError: No module named Bio). also import mx does not works.
If I start Python in the Terminal the import still works.