Add flush method to test support PseudoFile object; issue #363
Add flush method to test support PseudoFile object; issue #363

pedros/pep8,ABaldwinHunter/pep8,pandeesh/pep8,doismellburning/pep8,ojengwa/pep8,codeclimate/pep8,MeteorAdminz/pep8,asandyz/pep8,ABaldwinHunter/pep8-clone-classic,PyCQA/pep8,zevnux/pep8