fix flake8 error
fix flake8 error

thenewguy/wagtail,thenewguy/wagtail,kurtw/wagtail,wagtail/wagtail,mixxorz/wagtail,jnns/wagtail,kurtw/wagtail,nutztherookie/wagtail,mixxorz/wagtail,nimasmi/wagtail,thenewguy/wagtail,davecranwell/wagtail,jnns/wagtail,gasman/wagtail,FlipperPA/wagtail,torchbox/wagtail,hamsterbacke23/wagtail,timorieber/wagtail,nealtodd/wagtail,quru/wagtail,gogobook/wagtail,kaedroho/wagtail,takeflight/wagtail,nilnvoid/wagtail,nimasmi/wagtail,nealtodd/wagtail,iansprice/wagtail,zerolab/wagtail,rsalmaso/wagtail,kurtrwall/wagtail,jnns/wagtail,davecranwell/wagtail,mixxorz/wagtail,jnns/wagtail,gasman/wagtail,nilnvoid/wagtail,kaedroho/wagtail,nutztherookie/wagtail,kaedroho/wagtail,nimasmi/wagtail,iansprice/wagtail,timorieber/wagtail,chrxr/wagtail,zerolab/wagtail,gogobook/wagtail,mikedingjan/wagtail,gasman/wagtail,kurtrwall/wagtail,torchbox/wagtail,rsalmaso/wagtail,quru/wagtail,davecranwell/wagtail,wagtail/wagtail,iansprice/wagtail,Toshakins/wagtail,wagtail/wagtail,mikedingjan/wagtail,kaedroho/wagtail,mixxorz/wagtail,gogobook/wagtail,FlipperPA/wagtail,torchbox/wagtail,kurtrwall/wagtail,hamsterbacke23/wagtail,wagtail/wagtail,hamsterbacke23/wagtail,Toshakins/wagtail,iansprice/wagtail,zerolab/wagtail,gogobook/wagtail,mikedingjan/wagtail,nealtodd/wagtail,takeflight/wagtail,nutztherookie/wagtail,quru/wagtail,thenewguy/wagtail,nilnvoid/wagtail,thenewguy/wagtail,wagtail/wagtail,FlipperPA/wagtail,kurtw/wagtail,torchbox/wagtail,chrxr/wagtail,takeflight/wagtail,zerolab/wagtail,hamsterbacke23/wagtail,nealtodd/wagtail,takeflight/wagtail,chrxr/wagtail,kurtw/wagtail,chrxr/wagtail,quru/wagtail,mikedingjan/wagtail,gasman/wagtail,kurtrwall/wagtail,mixxorz/wagtail,FlipperPA/wagtail,timorieber/wagtail,nimasmi/wagtail,Toshakins/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,zerolab/wagtail,nilnvoid/wagtail,davecranwell/wagtail,gasman/wagtail,rsalmaso/wagtail,kaedroho/wagtail,timorieber/wagtail,nutztherookie/wagtail,Toshakins/wagtail