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

Project Description

Installation

[sudo] pip install python-nest

NOTE The 3.x version uses the Nest official api. As such some functionality was removed as it is not available. To keep the old verision make sure to set your requirements to python-nest<3.0.

Nest Developer Account

You will a Nest developer account, and a Product on the Nest developer portal to use this module:

  1. Visit Nest Developers, and sign in. Create an account if you don’t have one already.
  2. Fill in account details:
  • The “Company Information” can be anything.
  1. Submit changes.
  2. Click “Products” at top of page.
  3. Click “Create New Product
  4. Fill in details:
  • Product name must be unique.
  • The description, users, urls can all be anything you want.
  1. For permissions, check every box and if it’s an option select the read/write option.
  • The description requires a specific format to be accepted.
  1. Click “Create Product”.
  2. Once the new product page opens the “Product ID” and “Product Secret” are located on the right side. These will be used as client_id and client_secret below.

Usage

Module

You can import the module as nest.

import nest

client_id = 'XXXXXXXXXXXXXXX'
client_secret = 'XXXXXXXXXXXXXXX'
access_token_cache_file = 'nest.json'

napi = nest.Nest(client_id=client_id, client_secret=client_secret, access_token_cache_file=access_token_cache_file)

if napi.authorization_required:
    print('Go to ' + napi.authorize_url + ' to authorize, then enter PIN below')
    pin = input("PIN: ")
    napi.request_token(pin)

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

    for device in structure.thermostats:
        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 (' num_thermostats                : %s' % structure.num_thermostats)

# Access advanced device properties:
    for device in structure.thermostats:
        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 ('            Eco High : %0.1fC' % device.eco_temperature.high)
        print ('            Eco Low  : %0.1fC' % device.eco_temperature.low)

        print ('            hvac_emer_heat_state  : %s' % device.is_using_emergency_heat)

        print ('            online                : %s' % device.online)

# The Nest object can also be used as a context manager
with nest.Nest(client_id=client_id, client_secret=client_secret, access_token_cache_file=access_token_cache_file) as napi:
    for device in napi.thermostats:
        device.temperature = 23

# Nest product's can be updated to include other permissions. Before you
# can access with the API, a user has to authorize again. To handle this
# and detect when re-authorization is required, pass in a product_version
client_id = 'XXXXXXXXXXXXXXX'
client_secret = 'XXXXXXXXXXXXXXX'
access_token_cache_file = 'nest.json'
product_version = 1337

napi = nest.Nest(client_id=client_id, client_secret=client_secret, access_token_cache_file=access_token_cache_file, product_version=product_version)

print("Never Authorized: %s" % napi.never_authorized)
print("Invalid Token: %s" % napi.invalid_access_token)
print("Client Version out of date: %s" % napi.client_version_out_of_date)
if napi.authorization_required is None:
    print('Go to ' + napi.authorize_url + ' to authorize, then enter PIN below')
    pin = input("PIN: ")
    napi.request_token(pin)


# 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.datetime.tzinfo

FIXME In the API, temperatures are in 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.

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

Release History

Release History

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3.3.0

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2.11.0

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2.10.0

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2.6.0

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2.4.0

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2.1

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2.0

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