diff --git a/.meta/mkdocs.py b/.meta/mkdocs.py
index a5707f32..d7b858ea 100644
--- a/.meta/mkdocs.py
+++ b/.meta/mkdocs.py
@@ -29,7 +29,6 @@ def doc2rst(doc, arglist=True, raw=False):
     doc = doc.replace('`', '``')
     if raw:
         doc = doc.replace('\n ', '\n   ')
-        #doc = '\n'.join(i.rstrip() for i in doc.split('\n'))
     else:
         doc = dedent(doc)
         if arglist:
diff --git a/examples/parallel_bars.py b/examples/parallel_bars.py
index e49a2775..86a49196 100644
--- a/examples/parallel_bars.py
+++ b/examples/parallel_bars.py
@@ -15,7 +15,8 @@ def progresser(n, auto_position=True, write_safe=False):
     interval = random() * 0.002 / (NUM_SUBITERS - n + 2)
     total = 5000
     text = "#{}, est. {:<04.2}s".format(n, interval * total)
-    for _ in tqdm(range(total), desc=text, position=None if auto_position else n):
+    for _ in trange(total, desc=text,
+                    position=None if auto_position else n):
         sleep(interval)
     # NB: may not clear instances with higher `position` upon completion
     # since this worker may not know about other bars #796
diff --git a/setup.cfg b/setup.cfg
index 67afc79d..cd065ddd 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,6 +2,6 @@
 universal = 1
 
 [flake8]
-ignore = W503,W504
+ignore = W503,W504,E722
 max_line_length = 80
 exclude = .asv,.tox,.ipynb_checkpoints,build,dist,.git,__pycache__
diff --git a/tox.ini b/tox.ini
index d60a15b4..9c228b57 100644
--- a/tox.ini
+++ b/tox.ini
@@ -77,7 +77,7 @@ commands =
 [testenv:flake8]
 deps = flake8
 commands =
-    flake8 -j 8 --count --statistics --exit-zero .
+    flake8 -j 8 --count --statistics .
 
 [testenv:setup.py]
 deps =
diff --git a/tqdm/tests/tests_main.py b/tqdm/tests/tests_main.py
index ac0298b2..573948dd 100644
--- a/tqdm/tests/tests_main.py
+++ b/tqdm/tests/tests_main.py
@@ -48,7 +48,7 @@ def test_main():
         sys.argv = ['', '--desc', 'Test CLI --delim',
                     '--ascii', 'True', '--delim', r'\0', '--buf_size', '64']
         sys.stdin.write('\0'.join(map(str, _range(int(123)))))
-        #sys.stdin.write(b'\xff')  # TODO
+        # sys.stdin.write(b'\xff')  # TODO
         sys.stdin.seek(0)
         main()
     sys.stdin = IN_DATA_LIST