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Python API and command line tool for talking to the Nest™ Thermostat

Project Description

https://travis-ci.org/jkoelker/python-nest.svg?branch=master

Installation

[sudo] pip install python-nest

Usage

Module

You can import the module as nest.

import nest

username = 'joe@user.com'
password = 'swordfish'

napi = nest.Nest(username, password)

for structure in napi.structures:
    print 'Structure %s' % structure.name
    print '    Away: %s' % structure.away
    print '    Devices:'

    for device in structure.devices:
        print '        Device: %s' % device.name
        print '            Temp: %0.1f' % device.temperature

# Access advanced structure properties:
for structure in napi.structures:
    print 'Structure   : %s' % structure.name
    print ' Postal Code                    : %s' % structure.postal_code
    print ' Country                        : %s' % structure.country_code
    print ' dr_reminder_enabled            : %s' % structure.dr_reminder_enabled
    print ' emergency_contact_description  : %s' % structure.emergency_contact_description
    print ' emergency_contact_type         : %s' % structure.emergency_contact_type
    print ' emergency_contact_phone        : %s' % structure.emergency_contact_phone
    print ' enhanced_auto_away_enabled     : %s' % structure.enhanced_auto_away_enabled
    print ' eta_preconditioning_active     : %s' % structure.eta_preconditioning_active
    print ' house_type                     : %s' % structure.house_type
    print ' hvac_safety_shutoff_enabled    : %s' % structure.hvac_safety_shutoff_enabled
    print ' num_thermostats                : %s' % structure.num_thermostats
    print ' measurement_scale              : %s' % structure.measurement_scale
    print ' renovation_date                : %s' % structure.renovation_date
    print ' structure_area                 : %s' % structure.structure_area

# Access advanced device properties:
    for device in structure.devices:
        print '        Device: %s' % device.name
        print '        Where: %s' % device.where
        print '            Mode     : %s' % device.mode
        print '            Fan      : %s' % device.fan
        print '            Temp     : %0.1fC' % device.temperature
        print '            Humidity : %0.1f%%' % device.humidity
        print '            Target   : %0.1fC' % device.target
        print '            Away Heat: %0.1fC' % device.away_temperature[0]
        print '            Away Cool: %0.1fC' % device.away_temperature[1]

        print '            hvac_ac_state         : %s' % device.hvac_ac_state
        print '            hvac_cool_x2_state    : %s' % device.hvac_cool_x2_state
        print '            hvac_heater_state     : %s' % device.hvac_heater_state
        print '            hvac_aux_heater_state : %s' % device.hvac_aux_heater_state
        print '            hvac_heat_x2_state    : %s' % device.hvac_heat_x2_state
        print '            hvac_heat_x3_state    : %s' % device.hvac_heat_x3_state
        print '            hvac_alt_heat_state   : %s' % device.hvac_alt_heat_state
        print '            hvac_alt_heat_x2_state: %s' % device.hvac_alt_heat_x2_state
        print '            hvac_emer_heat_state  : %s' % device.hvac_emer_heat_state

        print '            online                : %s' % device.online
        print '            last_ip               : %s' % device.last_ip
        print '            local_ip              : %s' % device.local_ip
        print '            last_connection       : %s' % device.last_connection

        print '            error_code            : %s' % device.error_code
        print '            battery_level         : %s' % device.battery_level

# The Nest object can also be used as a context manager
with nest.Nest(username, password) as napi:
    for device in napi.devices:
        device.temp = 23

# Weather data is also availible under structure or device
# The api is the same from either

structure = napi.structures[0]
time_str = structure.weather.current.datetime.strftime('%Y-%m-%d %H:%M:%S')
print 'Current Weather at %s:' % time_str
print '    Condition: %s' % structure.weather.current.condition
print '    Temperature: %s' % structure.weather.current.temperature
print '    Humidity: %s' % structure.weather.current.humidity
print '    Wind Dir: %s' % structure.weather.current.wind.direction
print '    Wind Azimuth: %s' % structure.weather.current.wind.azimuth
print '    Wind Speed: %s' % structure.weather.current.wind.kph

# NOTE: Hourly forecasts do not contain a "contidion" its value is `None`
#       Wind Speed is likwise `None` as its generally not reported
print 'Hourly Forcast:'
for f in structure.weather.hourly:
    print '    %s:' % f.datetime.strftime('%Y-%m-%d %H:%M:%S')
    print '        Temperature: %s' % f.temperature
    print '        Humidity: %s' % f.humidity
    print '        Wind Dir: %s' % f.wind.direction
    print '        Wind Azimuth: %s' % f.wind.azimuth


# NOTE: Daily forecasts temperature is a tuple of (low, high)
print 'Daily Forcast:'
for f in structure.weather.daily:
    print '    %s:' % f.datetime.strftime('%Y-%m-%d %H:%M:%S')
    print '    Condition: %s' % structure.weather.current.condition
    print '        Low: %s' % f.temperature[0]
    print '        High: %s' % f.temperature[1]
    print '        Humidity: %s' % f.humidity
    print '        Wind Dir: %s' % f.wind.direction
    print '        Wind Azimuth: %s' % f.wind.azimuth
    print '        Wind Speed: %s' % structure.weather.current.wind.kph


# NOTE: By default all datetime objects are timezone unaware (UTC)
#       By passing `local_time=True` to the `Nest` object datetime objects
#       will be converted to the timezone reported by nest. If the `pytz`
#       module is installed those timezone objects are used, else one is
#       synthesized from the nest data
napi = nest.Nest(username, password, local_time=True)
print napi.structures[0].weather.current.dateimte.tzinfo

In the API all temperature values are in degrees celsius. Helper functions for conversion are in the utils module:

from nest import utils as nest_utils
temp = 23.5
fahrenheit = nest_utils.c_to_f(temp)
temp == nest_utils.f_to_c(fahrenheit)

The utils function use decimal.Decimal to ensure precision.

For “advanced” usage such as token caching, use the source, luke!

Command line

usage: nest [-h] [--conf FILE] [--token-cache TOKEN_CACHE_FILE] [-t TOKEN]
            [-u USER] [-p PASSWORD] [-c] [-s SERIAL] [-i INDEX]
            {temp,fan,mode,away,target,humid,target_hum,show} ...

Command line interface to Nest™ Thermostats

positional arguments:
  {temp,fan,mode,away,target,humid,target_hum,show}
                        command help
    temp                show/set temperature
    fan                 set fan "on" or "auto"
    mode                show/set current mode
    away                show/set current away status
    target              show current temp target
    humid               show current humidity
    target_hum          show/set target humidity
                            specify target humidity value or auto to auto-select a
                            humidity based on outside temp
    show                show everything



optional arguments:
  -h, --help            show this help message and exit
  --conf FILE           config file (default ~/.config/nest/config)
  --token-cache TOKEN_CACHE_FILE
                        auth access token
  -t TOKEN, --token TOKEN
                        auth access token cache file
  -u USER, --user USER  username for nest.com
  -p PASSWORD, --password PASSWORD
                        password for nest.com
  -c, --celsius         use celsius instead of farenheit
  -s SERIAL, --serial SERIAL
                        optional, specify serial number of nest thermostat to
                        talk to
  -i INDEX, --index INDEX
                        optional, specify index number of nest to talk to

examples:
    # If your nest is not in range mode
    nest --user joe@user.com --password swordfish temp 73
    # If your nest is in range mode
    nest --user joe@user.com --password swordfish temp 66 73

    nest --user joe@user.com --password swordfish fan --auto
    nest --user joe@user.com --password swordfish target_hum 35

A configuration file can also be specified to prevent username/password repitition.

[DEFAULT]
user = joe@user.com
password = swordfish
token_cache = ~/.config/nest/cache

The [DEFAULT] section may also be named [nest] for convience.

History

This module was originally a fork of nest_thermostat <https://github.com/FiloSottile/nest_thermostat> which was a fork of pynest <https://github.com/smbaker/pynest

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