Get total step count from Google Fit API for current day

getfit.py

#! /usr/bin/env python
#-*- coding: utf-8 -*-

import json
import httplib2

import time
from datetime import datetime
from datetime import timedelta
from apiclient.discovery import build
from oauth2client.client import OAuth2WebServerFlow

# Copy your credentials from the Google Developers Console
CLIENT_ID = 'XXXXXXXXXXXXXXXXXX.apps.googleusercontent.com'
CLIENT_SECRET = 'XXXXXXXXXXXXXXXXXXXXXXX'

# Check https://developers.google.com/fit/rest/v1/reference/users/dataSources/datasets/get
# for all available scopes
OAUTH_SCOPE = 'https://www.googleapis.com/auth/fitness.activity.read'

# DATA SOURCE
DATA_SOURCE = "derived:com.google.step_count.delta:com.google.android.gms:estimated_steps"

# The ID is formatted like: "startTime-endTime" where startTime and endTime are
# 64 bit integers (epoch time with nanoseconds).
TODAY = datetime.today().date()
NOW = datetime.today()
START = int(time.mktime(TODAY.timetuple())*1000000000)
END = int(time.mktime(NOW.timetuple())*1000000000)
DATA_SET = "%s-%s" % (START, END)

# Redirect URI for installed apps
REDIRECT_URI = 'urn:ietf:wg:oauth:2.0:oob'

def retrieve_data():
    """
    Run through the OAuth flow and retrieve credentials.
    Returns a dataset (Users.dataSources.datasets):
    https://developers.google.com/fit/rest/v1/reference/users/dataSources/datasets
    """
    flow = OAuth2WebServerFlow(CLIENT_ID, CLIENT_SECRET, OAUTH_SCOPE, REDIRECT_URI)
    authorize_url = flow.step1_get_authorize_url()
    print 'Go to the following link in your browser:'
    print authorize_url
    code = raw_input('Enter verification code: ').strip()
    credentials = flow.step2_exchange(code)

    # Create an httplib2.Http object and authorize it with our credentials
    http = httplib2.Http()
    http = credentials.authorize(http)

    fitness_service = build('fitness', 'v1', http=http)

    return fitness_service.users().dataSources(). \
              datasets(). \
              get(userId='me', dataSourceId=DATA_SOURCE, datasetId=DATA_SET). \
              execute()

def nanoseconds(nanotime):
    """
    Convert epoch time with nanoseconds to human-readable.
    """
    dt = datetime.fromtimestamp(nanotime // 1000000000)
    return dt.strftime('%Y-%m-%d %H:%M:%S')

if __name__ == "__main__":
    # Point of entry in execution mode:
    dataset = retrieve_data()
    with open('dataset.txt', 'w') as outfile:
        json.dump(dataset, outfile)

    starts = []
    ends = []
    values = []
    for point in dataset["point"]:
        if int(point["startTimeNanos"]) > START:
            starts.append(int(point["startTimeNanos"]))
            ends.append(int(point["endTimeNanos"]))
            values.append(point['value'][0]['intVal'])
    print "From: ", nanoseconds(min(starts))
    print "To: ", nanoseconds(max(ends))
    print "Steps: %d" % sum(values)

This is nice, but this "Google Developers Console" is not free right? (or it is just for 12 months), is there any other option?

Is this console the "cloud console" or the "play developers console"?

I believe the script is referencing referencing: https://developers.google.com/fit/

Edit: I found it finally https://developers.google.com/fit/rest/v1/get-started

Edit: so now when i copy the verification code i get the following error:

Traceback (most recent call last):
File "getfit.py", line 68, in
dataset = retrieve_data()
File "getfit.py", line 46, in retrieve_data
credentials = flow.step2_exchange(code)
File "/home/msev/.virtualenvs/coding/local/lib/python2.7/site-packages/oauth2client/_helpers.py", line 133, in positional_wrapper
return wrapped(*args, **kwargs)
File "/home/msev/.virtualenvs/coding/local/lib/python2.7/site-packages/oauth2client/client.py", line 2089, in step2_exchange
raise FlowExchangeError(error_msg)
oauth2client.client.FlowExchangeError: invalid_clientUnauthorized

what code should I put in code = raw_input('Enter verification code: ').strip()