Fixed error checking order in Python's read
Fixed error checking order in Python's read

jblomer/ramcloud,Frank-Wu/RamCloud,jcarreira/ramcloud,SMatsushi/RAMCloud,mrdiegoa/ramcloud,y-higuchi/ramcloud,rstutsman/RAMCloud,rstutsman/RAMCloud,mrdiegoa/ramcloud,jcarreira/ramcloud,behnamm/cs244b_project,IMCG/RamCloud,utah-scs/RAMCloud,SMatsushi/RAMCloud,anirajk/RAMCloud,taschik/ramcloud,alexandermerritt/ramcloud,Frank-Wu/RamCloud,y-higuchi/ramcloud,QingkaiLu/RAMCloud,rstutsman/RAMCloud,Frank-Wu/RamCloud,taschik/ramcloud,utah-scs/RAMCloud,anirajk/RAMCloud,QingkaiLu/RAMCloud,SMatsushi/RAMCloud,utah-scs/RAMCloud,alexandermerritt/ramcloud,behnamm/cs244b_project,utah-scs/RAMCloud,SMatsushi/RAMCloud,rstutsman/RAMCloud,taschik/ramcloud-load-manager,taschik/ramcloud,SMatsushi/RAMCloud,jblomer/ramcloud,alexandermerritt/ramcloud,y-higuchi/ramcloud,taschik/ramcloud-load-manager,jcarreira/ramcloud,mrdiegoa/ramcloud,SMatsushi/RAMCloud,IMCG/RamCloud,alexandermerritt/ramcloud,matrix207/RAMCloud,y-higuchi/ramcloud,alexandermerritt/ramcloud,DavidLi2010/ramcloud,DavidLi2010/ramcloud,mrdiegoa/ramcloud,y-higuchi/ramcloud,y-higuchi/ramcloud,jblomer/ramcloud,taschik/ramcloud,Frank-Wu/RamCloud,IMCG/RamCloud,IMCG/RamCloud,DavidLi2010/ramcloud,jcarreira/ramcloud,mrdiegoa/ramcloud,matrix207/RAMCloud,QingkaiLu/RAMCloud,Frank-Wu/RamCloud,matrix207/RAMCloud,jcarreira/ramcloud,behnamm/cs244b_project,taschik/ramcloud,anirajk/RAMCloud,IMCG/RamCloud,matrix207/RAMCloud,IMCG/RamCloud,anirajk/RAMCloud,matrix207/RAMCloud,Frank-Wu/RamCloud,DavidLi2010/ramcloud,behnamm/cs244b_project,rstutsman/RAMCloud,anirajk/RAMCloud,QingkaiLu/RAMCloud,behnamm/cs244b_project,QingkaiLu/RAMCloud,anirajk/RAMCloud,jblomer/ramcloud,QingkaiLu/RAMCloud,DavidLi2010/ramcloud,behnamm/cs244b_project,DavidLi2010/ramcloud,taschik/ramcloud-load-manager,jcarreira/ramcloud,matrix207/RAMCloud,rstutsman/RAMCloud,alexandermerritt/ramcloud,taschik/ramcloud-load-manager,taschik/ramcloud-load-manager,jblomer/ramcloud,mrdiegoa/ramcloud,utah-scs/RAMCloud,utah-scs/RAMCloud,jblomer/ramcloud