make fileno optional for testing
make fileno optional for testing

a-tal/pypicloud,stevearc/pypicloud,stevearc/pypicloud,mathcamp/pypicloud,mathcamp/pypicloud,stevearc/pypicloud,rubikloud/pypicloud,mathcamp/pypicloud,a-tal/pypicloud,rubikloud/pypicloud,johnswanson/pypicloud,mathcamp/pypicloud,a-tal/pypicloud,johnswanson/pypicloud,johnswanson/pypicloud,a-tal/pypicloud,rubikloud/pypicloud,rubikloud/pypicloud,johnswanson/pypicloud,stevearc/pypicloud