This can still be done this way but its MUCH easier to user the CURL/API commands from stripe -> https://api.stripe.com/v1/token use this url to obtain your token and then you wont need to do any of this. This is a snippet of my code I switched to. It uses Kivy's UrlRequest which is asynchronous.

class MyAPI: def init(self): self.base_stripe_url = 'https://api.stripe.com/' self.create_stripe_token = 'v1/tokens'

def post_stripe_token(self, callback, number, exp_month, exp_year, cvc):
    data = {
        'card[number]': str(number),
        'card[exp_month]': str(exp_month),
        'card[exp_year]': str(exp_year),
        'card[cvc]': str(cvc)
    }
    url_data = urllib.parse.urlencode(data)
    base_64_key = b64encode(_stipe_key.encode("utf-8")).decode("utf-8")
    header = {'Content-type': 'application/x-www-form-urlencoded',
              'Authorization': 'Basic {}'.format(base_64_key)}
    url = self.base_stripe_url + self.create_stripe_token
    self._handle_post_req(callback, url=url, header=header, data=url_data)
    
def _handle_post_req(self, callback, url, header=None, data=None):
    self.util.logger.info("URL:%s DATA:%s HEADER:%s" % (url, data, header))
    UrlRequest(url, method='POST', req_headers=header, req_body=data,
               on_success=callback, on_error=callback,
               on_failure=callback, ca_file=certifi.where())

Stripe

An implementation of Stripe payment processing designed for Kivy-ios and python-4-android

How to install:

ANDROID

  For android applications in your buildozer.spec file add
  android.gradle_dependencies = com.stripe:stripe-android:2.1.0,com.android.support:support-v4:24.0.0
  and make sure your android api is set to equal or greater than the follow so your buildozer will use 
  gradle to build your apk
    # (int) Android API to use
    android.api = 24
    # (int) Minimum API required
    android.minapi = 19
    # (int) Android SDK version to use
    android.sdk = 24

IOS

    IOS apps will need to use the stripe recipe for Kivy-ios that can be located in the Kivy-ios directory of this 
    project. The kivy stripe recipee also requires a patch for the host_setuptools recipee.  Move these two recipees 
    into .buildozer/ios/platform/kivy-ios/recipees. Add stripe to your requirements in your buildozer spec file or build 
    them with ./toolchain.py.  Once your recipees have been compiled, open up xcode and click file->add files to project
    and select Stripe.Framework found in this repository under kivy-ios and click "copy files if needed".  Then click 
    add files to project again and add Stripe.bundle and make sure "copy files if needed" is checked again.

Server

    Demo server will require python modules twisted and stripe and can be installed via pip.

How to use in your app:

Create Payment Screen and generate token

from stripewidget.StripeMD import StripeMD
.
.
#Then Create a StripeMD instance
#util needs an object with class variable user and a method sendTokenToServer(token,object.user)
#This method will send your token to your server to be stored in your database with your token and user tied together
CreditCardLayout = StripeMD(util=<your server instance>,key=_key)
layout.add_widget(CreditCardLayout)

How to use in your server:

In order to fully implement stripe you will need a server that will store user information in a database
along with their token.  All charges must be created from your server.

Install the Stripe pyton package with pip and import

import stripe
#Then add your api key
_stripe_api_key = "your key here"
stripe.api_key = _stripe_api_key

Charge customer

stripe.Charge.create(amount=amountCharged, currency='usd', description='Add info here', customer=customerToken, capture=False)