Bitforex API Call with signed Data

bitforex_api.py

#!/usr/bin/env python2
# See https://github.com/bitforexapi/API_Doc_en/wiki/API-Call-Description
import urllib
import requests, json, time
import hmac, hashlib

def simple_api_call(requestLink, params) : #GET
    url = "https://api.bitforex.com" + requestLink
    i = 0
    for key, value in params.iteritems():
        if i == 0:
            url += "?"
        else:
            url += "&"
        url += key + "=" + str(value)
        i += 1

    response = urllib.urlopen(url)
    data = json.loads(response.read())
    return data

def signed_api_call(requestLink, params, secretKey) : #POST
    #===============================================================================
    #create data to sign
    #===============================================================================
    url = "https://api.bitforex.com" + requestLink
    timestamp = int(round(time.time() * 1000))
    params["nonce"] = timestamp #add timestamp
    sortedPostData = sorted(params.items()) #alphabetical order important!!!
    postDataString = requestLink
    i = 0
    for key, value in sortedPostData:
        if i == 0:
            postDataString += "?"
        else:
            postDataString += "&"
        postDataString += key + "=" + str(value)
        i += 1

    #===============================================================================
    #sign the data
    #===============================================================================
    contentToSign = postDataString

    secret = secretKey.encode(encoding='UTF-8')
    signData = hmac.new(secret, postDataString, digestmod=hashlib.sha256).hexdigest()

    #===============================================================================
    #send signed request
    #===============================================================================
    sortedPostData.append(('signData', signData))

    r = requests.post(url, data=sortedPostData, allow_redirects=False)
    respData = json.loads(r.content)
    return respData

How to use:

#!/usr/bin/env python2
# See https://github.com/bitforexapi/API_Doc_en/wiki/API-Call-Description
import bitforexAPI

requestLink = "/api/v1/market/symbols" #dict()
requestLink = "/api/v1/market/ticker" #dict(symbol="coin-usdt-btc")
requestLink = "/api/v1/market/depth" #dict(symbol="coin-usdt-btc", size=5)
requestLink = "/api/v1/market/trades" #dict(symbol="coin-usdt-btc", size=5)
requestLink = "/api/v1/market/kline" #dict(symbol="coin-usdt-btc", ktype="1min", size=10) #!!!return values different than described in doku
data = bitforexAPI.simple_api_call(requestLink, dict(symbol="coin-usdt-btc", ktype="1min", size=10))
for key, value in data.items():
    print key, value

requestLink = "/api/v1/fund/mainAccount" #dict(currency="usdt", accessKey=accessKey)
requestLink = "/api/v1/fund/allAccount" #dict(accessKey=accessKey)
accessKey = "......."
secKey = "......."
data = bitforexAPI.signed_api_call(requestLink, dict(accessKey=accessKey), secKey)
for key, value in data.items():
    print key, value