fixed condition on parsing key
fixed condition on parsing key

trupty/aerospike-client-python,trupty/aerospike-client-python,aerospike/aerospike-client-python,trupty/aerospike-client-python,arthurprs/aerospike-client-python,aerospike/aerospike-client-python,arthurprs/aerospike-client-python,aerospike/aerospike-client-python,arthurprs/aerospike-client-python