# as a test let's make sure that we get equal data frames
test = pd.read_table(test_file)
num_wrong_ns = sum(~ test.namespace.isin({0,1}))
# as a test let's make sure that we get equal data frames
test = pd.read_table(test_file)
num_wrong_ns = sum(~ test.namespace.isin({0,1}))