diff --git a/lib/py/setup.py b/lib/py/setup.py
index d065573..3d14118 100644
--- a/lib/py/setup.py
+++ b/lib/py/setup.py
@@ -121,6 +121,7 @@
           **extensions
           )
 
+
 try:
     with_binary = True
     run_setup(with_binary)
diff --git a/lib/py/src/ext/binary.h b/lib/py/src/ext/binary.h
index dedeec3..960b0d0 100644
--- a/lib/py/src/ext/binary.h
+++ b/lib/py/src/ext/binary.h
@@ -113,7 +113,8 @@
     if (!readBytes(&buf, sizeof(int16_t))) {
       return false;
     }
-    val = static_cast<int16_t>(ntohs(*reinterpret_cast<int16_t*>(buf)));
+    memcpy(&val, buf, sizeof(int16_t));
+    val = ntohs(val);
     return true;
   }
 
@@ -122,7 +123,8 @@
     if (!readBytes(&buf, sizeof(int32_t))) {
       return false;
     }
-    val = static_cast<int32_t>(ntohl(*reinterpret_cast<int32_t*>(buf)));
+    memcpy(&val, buf, sizeof(int32_t));
+    val = ntohl(val);
     return true;
   }
 
@@ -131,7 +133,8 @@
     if (!readBytes(&buf, sizeof(int64_t))) {
       return false;
     }
-    val = static_cast<int64_t>(ntohll(*reinterpret_cast<int64_t*>(buf)));
+    memcpy(&val, buf, sizeof(int64_t));
+    val = ntohll(val);
     return true;
   }
 
diff --git a/lib/py/src/ext/compact.h b/lib/py/src/ext/compact.h
index 5bba237..a78d7a7 100644
--- a/lib/py/src/ext/compact.h
+++ b/lib/py/src/ext/compact.h
@@ -162,7 +162,8 @@
     if (!readBytes(&buf, 8)) {
       return false;
     }
-    transfer.f = letohll(*reinterpret_cast<int64_t*>(buf));
+    memcpy(&transfer.f, buf, sizeof(int64_t));
+    transfer.f = letohll(transfer.f);
     val = transfer.t;
     return true;
   }
diff --git a/lib/py/src/ext/protocol.tcc b/lib/py/src/ext/protocol.tcc
index 6e978d7..c025d0c 100644
--- a/lib/py/src/ext/protocol.tcc
+++ b/lib/py/src/ext/protocol.tcc
@@ -102,7 +102,7 @@
     PyErr_SetString(PyExc_IOError, "failed to write to cStringIO object");
     return false;
   }
-  if (len != size) {
+  if (static_cast<size_t>(len) != size) {
     PyErr_Format(PyExc_EOFError, "write length mismatch: expected %lu got %d", size, len);
     return false;
   }
diff --git a/lib/py/src/protocol/TCompactProtocol.py b/lib/py/src/protocol/TCompactProtocol.py
index 16fd9be..e485cff 100644
--- a/lib/py/src/protocol/TCompactProtocol.py
+++ b/lib/py/src/protocol/TCompactProtocol.py
@@ -42,6 +42,8 @@
             return func(self, *args, **kwargs)
         return nested
     return helper
+
+
 writer = make_helper(VALUE_WRITE, CONTAINER_WRITE)
 reader = make_helper(VALUE_READ, CONTAINER_READ)
 
@@ -94,6 +96,7 @@
     MAP = 0x0B
     STRUCT = 0x0C
 
+
 CTYPES = {
     TType.STOP: CompactType.STOP,
     TType.BOOL: CompactType.TRUE,  # used for collection
diff --git a/lib/py/src/server/TNonblockingServer.py b/lib/py/src/server/TNonblockingServer.py
index 67ee04e..26c0f7e 100644
--- a/lib/py/src/server/TNonblockingServer.py
+++ b/lib/py/src/server/TNonblockingServer.py
@@ -62,6 +62,7 @@
                 logger.exception("Exception while processing request", exc_info=True)
                 callback(False, b'')
 
+
 WAIT_LEN = 0
 WAIT_MESSAGE = 1
 WAIT_PROCESS = 2
diff --git a/lib/py/src/transport/sslcompat.py b/lib/py/src/transport/sslcompat.py
index 8ad4ce4..ab00cb2 100644
--- a/lib/py/src/transport/sslcompat.py
+++ b/lib/py/src/transport/sslcompat.py
@@ -96,4 +96,5 @@
         match = legacy_validate_callback
     return ipaddr, match
 
+
 _match_has_ipaddress, _match_hostname = _optional_dependencies()
diff --git a/lib/py/test/test_sslsocket.py b/lib/py/test/test_sslsocket.py
index 8951618..3c4be9c 100644
--- a/lib/py/test/test_sslsocket.py
+++ b/lib/py/test/test_sslsocket.py
@@ -334,6 +334,7 @@
 
         self._assert_connection_success(server, ssl_context=client_context)
 
+
 if __name__ == '__main__':
     logging.basicConfig(level=logging.WARN)
     from thrift.transport.TSSLSocket import TSSLSocket, TSSLServerSocket, _match_has_ipaddress
diff --git a/lib/py/test/thrift_json.py b/lib/py/test/thrift_json.py
index fc1e79c..40e7a47 100644
--- a/lib/py/test/thrift_json.py
+++ b/lib/py/test/thrift_json.py
@@ -46,5 +46,6 @@
             unicode_text = unicode_text.encode('utf8')
         self.assertEqual(protocol.readString(), unicode_text)
 
+
 if __name__ == '__main__':
     unittest.main()