(Python) Use `str.join` over heavy `+` concats
(Python) Use `str.join` over heavy `+` concats

SabotageAndi/gherkin,SabotageAndi/gherkin,Zearin/gherkin3,chebizarro/gherkin3,concertman/gherkin3,chebizarro/gherkin3,Zearin/gherkin3,concertman/gherkin3,pjlsergeant/gherkin,chebizarro/gherkin3,dirkrombauts/gherkin3,pjlsergeant/gherkin,cucumber/gherkin3,pjlsergeant/gherkin,dirkrombauts/gherkin3,chebizarro/gherkin3,concertman/gherkin3,cucumber/gherkin3,dirkrombauts/gherkin3,dirkrombauts/gherkin3,cucumber/gherkin3,SabotageAndi/gherkin,Zearin/gherkin3,concertman/gherkin3,Zearin/gherkin3,dirkrombauts/gherkin3,dirkrombauts/gherkin3,SabotageAndi/gherkin,pjlsergeant/gherkin,pjlsergeant/gherkin,chebizarro/gherkin3,chebizarro/gherkin3,Zearin/gherkin3,SabotageAndi/gherkin,pjlsergeant/gherkin,Zearin/gherkin3,cucumber/gherkin3,cucumber/gherkin3,dirkrombauts/gherkin3,pjlsergeant/gherkin,SabotageAndi/gherkin,cucumber/gherkin3,Zearin/gherkin3,Zearin/gherkin3,chebizarro/gherkin3,SabotageAndi/gherkin,concertman/gherkin3,concertman/gherkin3,pjlsergeant/gherkin,concertman/gherkin3,dirkrombauts/gherkin3,chebizarro/gherkin3,cucumber/gherkin3,SabotageAndi/gherkin,concertman/gherkin3,pjlsergeant/gherkin,cucumber/gherkin3,SabotageAndi/gherkin,cucumber/gherkin3