run checks for an existing running app

tulip/shared/py/tulip.py

@@ -484,7 +484,13 @@ def run(module_string):
     before_run = sys.modules.copy()
     before_run_pwd = pwd()
 
-    # First, see if we need to delete a running import, for reload
+    # First, if we're already running, don't run again. Causes some problems
+    if module_string in running_apps:
+        # Switch to it
+        app(module_string)
+        return
+
+    # Second, see if we need to delete a running import, for reload
     try:
         exec('del sys.modules["%s"]' % (module_string))
     except KeyError:

tulip/shared/py/ui.py

@@ -12,6 +12,8 @@
 running_apps = {}
 current_app_string = "repl"
 
+uiscreen_load_delay = 50 # milliseconds between section loads
+
 
 # Returns the keypad indev
 def get_keypad_indev():
@@ -212,7 +214,7 @@ def present(self):
         lv.screen_load(self.screen)
 
         for i in range(self.group.get_child_count()):
-            tulip.defer(unhide, i, 500 + i*100)
+            tulip.defer(unhide, i, uiscreen_load_delay + i*uiscreen_load_delay)
 
         if(self.handle_keyboard):
             get_keypad_indev().set_group(self.kb_group)