Merge pull request #717 from Carreau/flake8

Minimal flake8 config

Author: blink1073

setup.cfg

@@ -8,4 +8,34 @@ license_file = COPYING.md
 warningfilters= default   |.*             |DeprecationWarning |ipykernel.*
                 error     |.*invalid.*    |DeprecationWarning |matplotlib.*
 
-                
+[flake8]
+# References:
+# https://flake8.readthedocs.io/en/latest/user/configuration.html
+# https://flake8.readthedocs.io/en/latest/user/error-codes.html
+# https://pycodestyle.pycqa.org/en/latest/intro.html#error-codes
+exclude = __init__.py,versioneer.py
+ignore =
+    E20,   # Extra space in brackets
+    E122,  # continuation line missing indentation or outdented
+    E124,  # closing bracket does not match visual indentation
+    E128,E127,E126  # continuation line over/under-indented for visual indent
+    E121,E125,  # continuation line with same indent as next logical line
+    E226,  # missing whitespace around arithmetic operator
+    E231,E241,  # Multiple spaces around ","
+    E211,  # whitespace before '('
+    E221,E225,E228  # missing whitespace around operator
+    E271,  # multiple spaces after keyword
+    E301,E303,E305,E306 # expected X blank lines
+    E26,   # Comments
+    E251   # unexpected spaces around keyword / parameter equals
+    E302   # expected 2 blank lines, found 1
+    E4,    # Import formatting
+    E721,  # Comparing types instead of isinstance
+    E731,  # Assigning lambda expression
+    E741,  # Ambiguous variable names
+    W293,  # blank line contains whitespace
+    W503,  # line break before binary operator
+    W504,  # line break after binary operator
+    F811,  # redefinition of unused 'loop' from line 10
+max-line-length = 120
+