THRIFT-2849: spelling errors fixed using codespell tool

Client: All
Patch: Anatol Pomozov

This closes #281
diff --git a/lib/py/setup.py b/lib/py/setup.py
index bd177b3..7e0a964 100644
--- a/lib/py/setup.py
+++ b/lib/py/setup.py
@@ -102,7 +102,7 @@
 except BuildFailed:
     print()
     print('*' * 80)
-    print("An error occured while trying to compile with the C extension enabled")
+    print("An error occurred while trying to compile with the C extension enabled")
     print("Attempting to build without the extension now")
     print('*' * 80)
     print()