pep8: Add compliance with rule E261 to sessions.py.
pep8: Add compliance with rule E261 to sessions.py.

dhcrzf/zulip,verma-varsha/zulip,jrowan/zulip,kou/zulip,brainwane/zulip,kou/zulip,Galexrt/zulip,jackrzhang/zulip,verma-varsha/zulip,rht/zulip,andersk/zulip,hackerkid/zulip,rht/zulip,shubhamdhama/zulip,brainwane/zulip,timabbott/zulip,rht/zulip,Galexrt/zulip,jphilipsen05/zulip,vaidap/zulip,christi3k/zulip,dhcrzf/zulip,timabbott/zulip,brockwhittaker/zulip,hackerkid/zulip,jrowan/zulip,ryanbackman/zulip,showell/zulip,dhcrzf/zulip,vaidap/zulip,christi3k/zulip,showell/zulip,shubhamdhama/zulip,synicalsyntax/zulip,tommyip/zulip,jackrzhang/zulip,dhcrzf/zulip,andersk/zulip,tommyip/zulip,brainwane/zulip,christi3k/zulip,mahim97/zulip,verma-varsha/zulip,hackerkid/zulip,tommyip/zulip,hackerkid/zulip,rishig/zulip,jackrzhang/zulip,amanharitsh123/zulip,andersk/zulip,kou/zulip,amanharitsh123/zulip,timabbott/zulip,timabbott/zulip,vabs22/zulip,rishig/zulip,zulip/zulip,tommyip/zulip,dhcrzf/zulip,showell/zulip,amanharitsh123/zulip,Galexrt/zulip,synicalsyntax/zulip,jackrzhang/zulip,rht/zulip,ryanbackman/zulip,mahim97/zulip,andersk/zulip,synicalsyntax/zulip,hackerkid/zulip,ryanbackman/zulip,eeshangarg/zulip,shubhamdhama/zulip,vabs22/zulip,eeshangarg/zulip,jrowan/zulip,vabs22/zulip,timabbott/zulip,mahim97/zulip,rishig/zulip,jackrzhang/zulip,tommyip/zulip,verma-varsha/zulip,jphilipsen05/zulip,amanharitsh123/zulip,punchagan/zulip,mahim97/zulip,Galexrt/zulip,showell/zulip,brainwane/zulip,ryanbackman/zulip,Galexrt/zulip,vaidap/zulip,christi3k/zulip,punchagan/zulip,brainwane/zulip,christi3k/zulip,brainwane/zulip,hackerkid/zulip,rht/zulip,amanharitsh123/zulip,jphilipsen05/zulip,synicalsyntax/zulip,j831/zulip,dhcrzf/zulip,vabs22/zulip,brockwhittaker/zulip,j831/zulip,rishig/zulip,vaidap/zulip,eeshangarg/zulip,punchagan/zulip,brockwhittaker/zulip,vabs22/zulip,zulip/zulip,punchagan/zulip,jphilipsen05/zulip,eeshangarg/zulip,brockwhittaker/zulip,ryanbackman/zulip,rishig/zulip,zulip/zulip,ryanbackman/zulip,vaidap/zulip,kou/zulip,tommyip/zulip,synicalsyntax/zulip,showell/zulip,timabbott/zulip,eeshangarg/zulip,dhcrzf/zulip,punchagan/zulip,andersk/zulip,amanharitsh123/zulip,jackrzhang/zulip,vaidap/zulip,Galexrt/zulip,zulip/zulip,shubhamdhama/zulip,rishig/zulip,christi3k/zulip,vabs22/zulip,verma-varsha/zulip,synicalsyntax/zulip,shubhamdhama/zulip,shubhamdhama/zulip,kou/zulip,j831/zulip,andersk/zulip,brainwane/zulip,rht/zulip,rishig/zulip,mahim97/zulip,showell/zulip,jphilipsen05/zulip,showell/zulip,zulip/zulip,brockwhittaker/zulip,jrowan/zulip,mahim97/zulip,kou/zulip,andersk/zulip,brockwhittaker/zulip,zulip/zulip,hackerkid/zulip,timabbott/zulip,punchagan/zulip,tommyip/zulip,jackrzhang/zulip,j831/zulip,eeshangarg/zulip,shubhamdhama/zulip,Galexrt/zulip,j831/zulip,kou/zulip,rht/zulip,verma-varsha/zulip,jphilipsen05/zulip,synicalsyntax/zulip,j831/zulip,jrowan/zulip,eeshangarg/zulip,jrowan/zulip,punchagan/zulip,zulip/zulip