Synchronizing flake8 config in pep8speaks

Author: datapythonista

.pep8speaks.yml

@@ -3,9 +3,18 @@
 scanner:
     diff_only: True  # If True, errors caused by only the patch are shown
 
+# Opened issue in pep8speaks, so we can directly use the config in setup.cfg
+# (and avoid having to duplicate it here):
+# https://github.com/OrkoHunter/pep8speaks/issues/95
+
 pycodestyle:
     max-line-length: 79
-    ignore:  # Errors and warnings to ignore
+    ignore:
+        - W503,  # line break before binary operator
         - E402,  # module level import not at top of file
+        - E722,  # do not use bare except
         - E731,  # do not assign a lambda expression, use a def
-        - W503   # line break before binary operator
+        - E741,  # ambiguous variable name 'l'
+        - C406,  # Unnecessary list literal - rewrite as a dict literal.
+        - C408,  # Unnecessary dict call - rewrite as a literal.
+        - C409   # Unnecessary list passed to tuple() - rewrite as a tuple literal.