def previous_line(view, sr):
    """sr should be a Region covering the entire hard line"""
    if sr.begin() == 0:
        return None
    else:
        return view.full_line(1 - sr.begin())
dataset/ETHPy150Open JT5D/Alfred-Popclip-Sublime/Sublime Text 2/Default/paragraph.py/previous_line/swapped operands of `-`