STY: pep8 in model.py
STY: pep8 in model.py

arokem/nipy,alexis-roche/nipy,bthirion/nipy,alexis-roche/register,arokem/nipy,alexis-roche/nipy,alexis-roche/register,nipy/nireg,nipy/nireg,alexis-roche/nipy,alexis-roche/nipy,alexis-roche/nireg,bthirion/nipy,bthirion/nipy,arokem/nipy,bthirion/nipy,alexis-roche/niseg,nipy/nipy-labs,arokem/nipy,nipy/nipy-labs,alexis-roche/nireg,alexis-roche/register,alexis-roche/niseg