Do not require import past in case we are using Python 2
Do not require import past in case we are using Python 2

palful/yambopy,alexmoratalla/yambopy,alexmoratalla/yambo-py,henriquemiranda/yambopy,palful/yambopy,alexandremorlet/yambopy,henriquemiranda/yambo-py,henriquemiranda/yambo-py,alexmoratalla/yambo-py,alexmoratalla/yambopy,alexandremorlet/yambopy,henriquemiranda/yambopy