Extracting your weight from Apple Health

get_weights.py

#!/usr/bin/env python

# Export the data from Apple Health
# You will get an export.zip file
# Unzip that file. You will get a bunch of files use export.xml

import xml.etree.ElementTree as ET 
tree = ET.parse('export.xml')
root = tree.getroot()

# If you want weights from all sources remove the last condition in the expression

for x in root:
    if x.tag == 'Record' and x.attrib['type'] == 'HKQuantityTypeIdentifierBodyMass' and x.attrib['sourceName'] == 'RENPHO':
        print('{0},{1}'.format(x.attrib['startDate'],x.attrib['value']))