diff --git a/benchs/bench_all_ivf/parse_bench_all_ivf.py b/benchs/bench_all_ivf/parse_bench_all_ivf.py
index 52d59c910..6df517f97 100644
--- a/benchs/bench_all_ivf/parse_bench_all_ivf.py
+++ b/benchs/bench_all_ivf/parse_bench_all_ivf.py
@@ -262,14 +262,14 @@ def plot_tradeoffs(db, allres, allstats, code_size, recall_rank):
     # times come after the perf measure
     times_idx = len(stat0["ranks"])
 
-    if type(code_size) == int:
+    if isinstance(code_size, int):
         if code_size == 0:
             code_size = [0, 1e50]
             code_size_name = "any code size"
         else:
             code_size_name = "code_size=%d" % code_size
             code_size = [code_size, code_size]
-    elif type(code_size) == tuple:
+    elif isinstance(code_size, tuple):
         code_size_name = "code_size in [%d, %d]" % code_size
     else:
         assert False
diff --git a/benchs/bench_partition.py b/benchs/bench_partition.py
index 85c912e07..3b8748c29 100644
--- a/benchs/bench_partition.py
+++ b/benchs/bench_partition.py
@@ -33,7 +33,7 @@ def do_partition(n, qin, maxval=65536, seed=123, id_type='int64'):
         faiss.copy_array_to_AlignedTable(vals, tab_a)
         t0 = time.time()
         # print("tab a type", tab_a.get())
-        if type(qin) == int:
+        if isinstance(qin, int):
             q = qin
             faiss.CMax_uint16_partition_fuzzy(
                 tab_a.get(), sp(ids), n, q, q, None)
diff --git a/faiss/gpu/test/test_multi_gpu.py b/faiss/gpu/test/test_multi_gpu.py
index 6ec2079ff..4b74ee759 100644
--- a/faiss/gpu/test/test_multi_gpu.py
+++ b/faiss/gpu/test/test_multi_gpu.py
@@ -199,10 +199,10 @@ class EvalIVFPQAccuracy(unittest.TestCase):
         # Validate the layout of the memory info
         mem_info = res.getMemoryInfo()
 
-        assert type(mem_info) == dict
-        assert type(mem_info[0]['FlatData']) == tuple
-        assert type(mem_info[0]['FlatData'][0]) == int
-        assert type(mem_info[0]['FlatData'][1]) == int
+        assert isinstance(mem_info, dict)
+        assert isinstance(mem_info[0]['FlatData'], tuple)
+        assert isinstance(mem_info[0]['FlatData'][0], int)
+        assert isinstance(mem_info[0]['FlatData'][1], int)
 
         gpu_index.nprobe = 4
 
diff --git a/tests/test_partition.py b/tests/test_partition.py
index 70bfd76f5..d920cf91c 100644
--- a/tests/test_partition.py
+++ b/tests/test_partition.py
@@ -61,7 +61,7 @@ class TestPartitioningFloat(unittest.TestCase, PartitionTests):
         vals_orig = vals.copy()
 
         sp = faiss.swig_ptr
-        if type(q) == int:
+        if isinstance(q, int):
             faiss.CMax_float_partition_fuzzy(
                 sp(vals), sp(ids), n,
                 q, q, None
@@ -110,7 +110,7 @@ class TestPartitioningFloatMin(unittest.TestCase, PartitionTests):
         vals[:] = mirval - vals
 
         sp = faiss.swig_ptr
-        if type(q) == int:
+        if isinstance(q, int):
             faiss.CMin_float_partition_fuzzy(
                 sp(vals), sp(ids), n,
                 q, q, None
@@ -157,7 +157,7 @@ class TestPartitioningUint16(unittest.TestCase, PartitionTests):
         tab_a = faiss.AlignedTableUint16()
         faiss.copy_array_to_AlignedTable(vals, tab_a)
 
-        if type(q) == int:
+        if isinstance(q, int):
             faiss.CMax_uint16_partition_fuzzy(
                 tab_a.get(), sp(ids), n, q, q, None)
         else:
@@ -204,7 +204,7 @@ class TestPartitioningUint16Min(unittest.TestCase, PartitionTests):
         vals_inv = (65535 - vals).astype('uint16')
         faiss.copy_array_to_AlignedTable(vals_inv, tab_a)
 
-        if type(q) == int:
+        if isinstance(q, int):
             faiss.CMin_uint16_partition_fuzzy(
                 tab_a.get(), sp(ids), n, q, q, None)
         else: