def add_file(self, fieldname, pathname, mimetype=None, filename=None):
        plist = [pycurl.FORM_FILE, pathname]
        if mimetype:
            plist.append(pycurl.FORM_CONTENTTYPE)
            plist.append(mimetype)
        if filename:
            plist.append(pycurl.FORM_FILENAME)
            plist.append(filename)
        if fieldname in self:
            dict.__setitem__(self, fieldname, self[fieldname] + tuple(plist))
        else:
            dict.__setitem__(self, fieldname, tuple(plist))
The dists can show bimodal distribution if they come from a mate-pair
dataset/ETHPy150Open kdart/pycopia/WWW/pycopia/WWW/client.py/HTTPForm.add_file--crossover with--dataset/ETHPy150Open tanghaibao/jcvi/formats/bed.py/analyze_dists