Fix python plugin crash issues.
Fix python plugin crash issues.

dstiert/Wox,renzhn/Wox,danisein/Wox,vebin/Wox,AlexCaranha/Wox,Launchify/Launchify,JohnTheGr8/Wox,EmuxEvans/Wox,vebin/Wox,kdar/Wox,mika76/Wox,apprentice3d/Wox,zlphoenix/Wox,EmuxEvans/Wox,renzhn/Wox,apprentice3d/Wox,qianlifeng/Wox,shangvven/Wox,kayone/Wox,lances101/Wox,18098924759/Wox,vebin/Wox,sanbinabu/Wox,danisein/Wox,Wox-launcher/Wox,Megasware128/Wox,medoni/Wox,kayone/Wox,qianlifeng/Wox,EmuxEvans/Wox,Launchify/Launchify,kayone/Wox,derekforeman/Wox,jondaniels/Wox,kdar/Wox,Wox-launcher/Wox,jondaniels/Wox,dstiert/Wox,yozora-hitagi/Saber,AlexCaranha/Wox,JohnTheGr8/Wox,kdar/Wox,medoni/Wox,sanbinabu/Wox,mika76/Wox,18098924759/Wox,derekforeman/Wox,dstiert/Wox,yozora-hitagi/Saber,apprentice3d/Wox,qianlifeng/Wox,gnowxilef/Wox,Megasware128/Wox,sanbinabu/Wox,lances101/Wox,gnowxilef/Wox,mika76/Wox,AlexCaranha/Wox,shangvven/Wox,zlphoenix/Wox,derekforeman/Wox,18098924759/Wox,shangvven/Wox,gnowxilef/Wox