fix `reset()` & `unpause()` when disabled

- fixes #1125

tqdm/std.py

@@ -1330,6 +1330,8 @@ class tqdm(Comparable):
 
     def unpause(self):
         """Restart tqdm timer from last print time."""
+        if self.disable:
+            return
         cur_t = self._time()
         self.start_t += cur_t - self.last_print_t
         self.last_print_t = cur_t
@@ -1344,13 +1346,16 @@ class tqdm(Comparable):
         ----------
         total  : int or float, optional. Total to use for the new bar.
         """
-        self.last_print_n = self.n = 0
+        self.n = 0
+        if total is not None:
+            self.total = total
+        if self.disable:
+            return
+        self.last_print_n = 0
         self.last_print_t = self.start_t = self._time()
         self._ema_dn = EMA(self.smoothing)
         self._ema_dt = EMA(self.smoothing)
         self._ema_miniters = EMA(self.smoothing)
-        if total is not None:
-            self.total = total
         self.refresh()
 
     def set_description(self, desc=None, refresh=True):