Fixed automatic temporary files cleaning with run.py on Windows

modules/core/src/system.cpp

@@ -478,7 +478,7 @@ string tempfile( const char* suffix )
     char temp_file[MAX_PATH + 1] = { 0 };
 
     ::GetTempPathA(sizeof(temp_dir), temp_dir);
-    if(0 == ::GetTempFileNameA(temp_dir, "__opencv_temp.", 0, temp_file))
+    if(0 == ::GetTempFileNameA(temp_dir, "ocv", 0, temp_file))
         return string();
 
     string name = temp_file;

modules/ts/misc/run.py

@@ -716,13 +716,20 @@ class RunInfo(object):
             # clean temporary files
             temp_path = os.environ.get('OPENCV_TEMP_PATH')
             if not temp_path:
-                if hostos == "nt":
+                if self.targetos == "nt":
                     temp_path = tempfile.gettempdir()
                 else:
                     temp_path = "/tmp"
 
-            for filename in glob.glob(os.path.join(temp_path, "__opencv_temp.*")) :
-                os.remove( filename )
+            try:
+                if self.targetos == "nt":
+                    for filename in glob.glob(os.path.join(temp_path, "ocv*")) :
+                        os.remove( filename )
+                else:
+                    for filename in glob.glob(os.path.join(temp_path, "__opencv_temp.*")) :
+                        os.remove( filename )
+            except:
+                pass
 
             logpath = os.path.join(workingDir, logfile)
             if os.path.isfile(logpath):