PEP8: full review (checked with Spyder)
PEP8: full review (checked with Spyder)

oesteban/dipy,rfdougherty/dipy,demianw/dipy,nilgoyyou/dipy,villalonreina/dipy,oesteban/dipy,jyeatman/dipy,nilgoyyou/dipy,JohnGriffiths/dipy,FrancoisRheaultUS/dipy,sinkpoint/dipy,jyeatman/dipy,demianw/dipy,StongeEtienne/dipy,rfdougherty/dipy,StongeEtienne/dipy,villalonreina/dipy,matthieudumont/dipy,matthieudumont/dipy,JohnGriffiths/dipy,sinkpoint/dipy,FrancoisRheaultUS/dipy