Initialized _dirty in KafkaConnection __init__() and set _sock to None in close()
Initialized _dirty in KafkaConnection __init__() and set _sock to None in close()

ianawilson/kafka-python,gamechanger/kafka-python,zackdever/kafka-python,Aloomaio/kafka-python,nmandavia/kafka-python,gamechanger/kafka-python,zackdever/kafka-python,oscarhealth/kafka-python,KetsuN/kafka-python,saaros/kafka-python,vshlapakov/kafka-python,scrapinghub/kafka-python,ohmu/kafka-python,jessamynsmith/kafka-python,alexzhang2015/kafka-python,ecanzonieri/kafka-python,xiaosl/kafka-python,mutability/kafka-python,wikimedia/operations-debs-python-kafka,wikimedia/operations-debs-python-kafka,DataDog/kafka-python,vshlapakov/kafka-python,grue/kafka-python,reAsOn2010/kafka-python,xiaosl/kafka-python,ohmu/kafka-python,Aloomaio/kafka-python,oscarhealth/kafka-python,saaros/kafka-python,mumrah/kafka-python,scrapinghub/kafka-python,dyv/kafka-python,ecanzonieri/kafka-python,dyv/kafka-python,dpkp/kafka-python,jessamynsmith/kafka-python,coldeasy/kafka-python,docker-hub/kafka-python,Yelp/kafka-python,mutability/kafka-python,alexzhang2015/kafka-python,dpkp/kafka-python,docker-hub/kafka-python,trbs/kafka-python,trbs/kafka-python,mumrah/kafka-python,CrowdStrike/kafka-python,grue/kafka-python,barricadeio/kafka-python,ianawilson/kafka-python,KetsuN/kafka-python,barricadeio/kafka-python,nmandavia/kafka-python,reAsOn2010/kafka-python,coldeasy/kafka-python,Yelp/kafka-python,CrowdStrike/kafka-python