用户上传测试用例文件过大时引发memoryERROR

problem/views.py

@@ -185,7 +185,11 @@ class TestCaseUploadAPIView(APIView):
             os.mkdir(test_case_dir)
             for name in l:
                 f = open(test_case_dir + name, "wb")
+                try:
                     f.write(test_case_file.read(name).replace("\r\n", "\n"))
+                except MemoryError:
+                    return error_response(u"单个测试数据体积过大!")
+                finally:
                     f.close()
             l.sort()