gather_wx_data.py

import re
import sys
import json
import requests

def main(args):
    url="http://k7msh-lakemountain-wx.local.mesh/"
    html = ""
    for i in range(3):
        try:
            html = requests.get(url).text
            break
        except Exception as err:
            i+=1
            if i > 2:
                print "Failed to connect. Exiting."
                raise err
            print "Error connecting, trying again..."
    make_json(html)

def make_json(html):
    try:
        data = {}
        data['windSpeed']               = get_wind_speed(html)
        data['windKnots']               = get_wind_knots(html)
        data['windDirection']           = get_direction(html)
        data['windDirectionCompass']    = get_compass_direction(html)
        data['windStrength']            = get_strength(html)
        data['tempInside']              = get_temp_inside(html)
        data['tempOutside']             = get_temp_outside(html)
        json_data = json.dumps(data)
        print str(json_data)
        return json_data
    except Exception as err:
        print "Failed creating JSON object: "+str(err)
        raise err

def get_wind_speed(html):
    m = re.search('Speed: (\d*\.\d*)', html)
    return str(m.group(1)).strip() if m else None

def get_wind_knots(html):
    m = re.search('Knots: (\d*\.\d*)', html)
    return str(m.group(1)).strip() if m else None

def get_strength(html):
    m = re.search('Strength: (.*)<br />', html)
    return str(m.group(1)).strip() if m else None

def get_direction(html):
    m = re.search('Direction: (\d*)', html)
    return str(m.group(1)).strip() if m else None

def get_compass_direction(html):
    m = re.search('Compas Direction: (\D*)<br />', html)
    return str(m.group(1)).strip() if m else None

def get_temp_inside(html):
    m = re.search('Temp inside building: (\d*\.\d*)', html)
    return str(m.group(1)).strip() if m else None

def get_temp_outside(html):
    m = re.search('temp outside building: (\d*\.\d*)', html)
    return str(m.group(1)).strip() if m else None

def strip_encoded_chars(html):
    try:
        ascii_html = html.encode('ascii', 'ignore').decode('ascii')
        return ascii_html
    except Exception as err:
        print "Failed to strip encoded chars: "+str(err)
        raise err

if __name__ == '__main__':
    main(sys.argv)