ernie.py

# miscellanous functions
#

import json
import os
import sys
import time
import urllib2
import withings_auth
from withings import WithingsAccount

POUNDS_IN_KILOGRAMS = 2.20462262


def get_withings_weight(fromdate, todate):

    # Withings API
    withings = WithingsAccount(withings_auth.username, withings_auth.password)
    user = withings.get_user_by_shortname(withings_auth.shortname)
    if not user:
            print 'could not find user: %s' % withings_auth.shortname
            return
    if not user.ispublic:
            print 'user %s has not opened withings data' % \
                withings_auth.shortname
            return
    startdate = int(time.mktime(fromdate.timetuple()))
    enddate = int(time.mktime(todate.timetuple())) + 86399
    groups = user.get_measure_groups(startdate=startdate, enddate=enddate)

    weights = []
    for group in groups:
        dt = group.get_datetime()
        weight = group.get_weight()
        fat_ratio = group.get_fat_ratio()
        # print "date: %s " % dt
        # print "weight: %f lb" % (weight * POUNDS_IN_KILOGRAMS);
        # print "fat ratio: %f " % (fat_ratio or 0);
        if weight:
                weights.append(weight * POUNDS_IN_KILOGRAMS)
    return weights