add grading_on_pause

wrapper.py

@@ -10,7 +10,11 @@ import sys
 from snatcher import snatch_grading_work
 development_mode = os.getenv('PYCHARM_HOSTED')
 
-url_to_pause="https://etherpad.wendt.io/p/sdo-snatching/export/txt"
+def grading_on_pause():
+    url_to_pause="https://etherpad.wendt.io/p/sdo-snatching/export/txt"
+    status = requests.get(url_to_pause).text.strip()
+    return status != "ON"
+
 
 def main():
     log = logging.getLogger('wrapper')
@@ -75,4 +79,8 @@ def main():
 
 if __name__ == "__main__":
     logging.basicConfig(level=logging.INFO, stream=sys.stdout)
+    if grading_on_pause():
+        print("Grading is on hold")
+    else:
+        print("Grading is not on hold")
     main()