pep8ify: examples/animation

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
pep8ify: examples/api

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
pep8ify: examples/axes_grid

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
add parens for the sake of clarity
fix awkward line break induced by autopep8
minor cleanup in collections_demo.py
fix some pep8 issues overseen by autopep8
test the pep8 conformance of the mpl examples
fix some pep8 issues overseen by autopep8
pep8: there are no exp. bad files for the examples
fix too many blank lines
refactor pep8 conformance test
probably this is some kind of docstring for class attrs
remove empty lines after class decl

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
comments containing code may not start with a space after the pound

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
fixed spaces around comments
simplify code: use ``endpoint`` kwargs
newline fix
fix spaces around = in kwargs
typo