bump version, Merge branch 'devel'

- closes #399
    - fixes #398
    - fixes #420 (probably)
    - complements #464

benchmarks/benchmarks.py

@@ -28,15 +28,16 @@ def setup(self):
         self.t = t1 - t0
 
     def track_tqdm(self):
-        t0 = self.time()
-        [0 for _ in self.tqdm(self.iterable)]
-        t1 = self.time()
+        with self.tqdm(self.iterable) as pbar:
+            t0 = self.time()
+            [0 for _ in pbar]
+            t1 = self.time()
         return (t1 - t0 - self.t) / self.t
 
     def track_optimsed(self):
-        t0 = self.time()
-        [0 for _ in self.tqdm(self.iterable,
-                              miniters=6e5, smoothing=0)]
-        # TODO: miniters=None, mininterval=0.1, smoothing=0)]
-        t1 = self.time()
+        with self.tqdm(self.iterable, miniters=6e5, smoothing=0) as pbar:
+            # TODO: miniters=None, mininterval=0.1, smoothing=0)]
+            t0 = self.time()
+            [0 for _ in pbar]
+            t1 = self.time()
         return (t1 - t0 - self.t) / self.t

tqdm/_tqdm.py

@@ -1215,6 +1215,7 @@ def set_postfix_str(self, s='', refresh=True):
 
     def moveto(self, n):
         self.fp.write(_unicode('\n' * n + _term_move_up() * -n))
+        self.fp.flush()
 
     def clear(self, nolock=False):
         """

tqdm/_version.py

@@ -5,7 +5,7 @@
 __all__ = ["__version__"]
 
 # major, minor, patch, -extra
-version_info = 4, 19, 3
+version_info = 4, 19, 4
 
 # Nice string for the version
 __version__ = '.'.join(map(str, version_info))