test and fix disable when writing to closed files

tqdm/std.py

@@ -1310,7 +1310,7 @@ def update(self, n=1):
 
     def close(self):
         """Cleanup and (if leave=False) close the progressbar."""
-        if self.disable:
+        if self.disable is True:  # could be truthy yet non-True
             return
 
         # Prevent multiple closures

tqdm/tests/tests_tqdm.py

@@ -2010,3 +2010,12 @@ def test_colour():
             pass
         out = our_file2.getvalue()
         assert '\x1b[34m' in out
+
+
+@with_setup(pretest, posttest)
+def test_closed():
+    """Test writing to closed file"""
+    with closing(StringIO()) as our_file:
+        for i in trange(9, file=our_file, miniters=1, mininterval=0):
+            if i == 5:
+                our_file.close()

tqdm/utils.py

@@ -219,15 +219,19 @@ class DisableOnWriteError(ObjectWrapper):
     @staticmethod
     def disable_on_exception(tqdm_instance, func):
         """
-        Quietly set `tqdm_instance.disable=True` if `func` raises `errno=5`.
+        Quietly set `tqdm_instance.disable=1` if `func` raises `errno=5`.
         """
         def inner(*args, **kwargs):
             try:
                 return func(*args, **kwargs)
             except (IOError, OSError) as e:
                 if e.errno != 5:
                     raise
-                tqdm_instance.disable = True
+                tqdm_instance.disable = 1
+            except ValueError as e:
+                if 'closed' not in str(e):
+                    raise
+                tqdm_instance.disable = 1
         return inner
 
     def __init__(self, wrapped, tqdm_instance):