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Python: cannot access class attribute from different modules/functions

I have a class called Org, and I'm trying to access its method from multiple functions (that are defined outside of the class). I'm calling main() first, followed by discover_buildings(). The main() executes without error, however, I get AttributeError: 'Org' has no attribute 'headers' error after I call discover_buildings(). What is it that I'm doing wrong? (I was expecting the headers attribute to be shared across the different methods)
class Org(object):
def __init__(self, client_id, client_secret, grant_type='client_credentials'):
self.grant_type = grant_type
self.client_id = client_id
self.client_secret = client_secret
self.url = CI_A_URL
def auth(self):
""" authenticate with bos """
params = {
'client_id': self.client_id,
'client_secret': self.client_secret,
'grant_type': self.grant_type
}
r = requests.post(self.url + 'o/token/', data=params)
if r.status_code == 200:
self.access_token = r.json()['access_token']
self.headers = {
'Authorization': 'Bearer %s' %self.access_token,
'Content-Type': 'application/json',
}
else:
logging.error(r.content)
r.raise_for_status()
def get_buildings(self, perPage=1000):
params = {
'perPage': perPage
}
r = requests.get(self.url + 'buildings/', params=params, headers=self.headers)
result = r.json().get('data')
if r.status_code == 200:
buildings_dict = {i['name']: i['id'] for i in result}
sheet_buildings['A1'].value = buildings_dict
else:
logging.error(r.content)
r.raise_for_status()
client_id = 'xxx'
client_secret = 'yyy'
gateway_id = 123
o = Org(client_id, client_secret)
def discover_buildings():
return o.get_buildings()
def main():
return o.auth()
Thanks, in advance, for your help!

Try using a property to calculate headers whenever you need it and then cache it.
def auth(self):
""" authenticate with bos """
# 👇you might want to isolate `token` into a nested #property token
params = {
'client_id': self.client_id,
'client_secret': self.client_secret,
'grant_type': self.grant_type
}
# note assignment to `_headers`, not `headers`
r = requests.post(self.url + 'o/token/', data=params)
if r.status_code == 200:
self._access_token = r.json()['access_token']
# 👆
self._headers = { # 👈
'Authorization': 'Bearer %s' %self._access_token,
'Content-Type': 'application/json',
}
else:
logging.error(r.content)
r.raise_for_status()
#cache after the first time.
_headers = None
#property
def headers(self):
""" call auth when needed
you might want to isolate `token`
into its own property, allowing different
headers to use the same token lookup
"""
if self._headers is None:
self.auth()
return self._headers

the problem is the way you define "discover_buildings"
you define it first with "o" just initialised not after the authentication.
to handle this:
rewrite discover to take 'o' as a parameter
or
check first to see 'o' has 'headers' if not authenticate 'o' and do the rest
def discover_buildings():
if not getattr(o, 'headers'):
o.auth()
return o.get_buildings()

You didn't define self.headers. You need to run o.auth() (or define self.headers) before you run o.get_buildings().

Upload PDF from Python as attachment to Salesforce Object

I am trying to upload a pdf generated in Python as an attachment to a salesforce object using the simple_salesforce Python package. I have tried several different ways to accomplish this, but have had no luck so far. Here is the code
import base64
import json
from simple_salesforce import Salesforce
instance = ''
sessionId = sf.session_id
def pdf_encode(pdf_filename):
body = open(pdf_filename, 'rb') #open binary file in read mode
body = body.read()
body = base64.encodebytes(body)
body = pdf_encode('PDF_Report.pdf')
response = requests.post('https://%s.salesforce.com/services/data/v29.0/sobjects/Attachment/' % instance,
headers = { 'Content-Type': 'application/json', 'Authorization': 'Bearer %s' % sessionId },
data = json.dumps({
'ParentId': parent_id,
'Name': 'test.txt',
'body': body
})
)
I get this error.
TypeError: Object of type bytes is not JSON serializable
I have also tried to use
body = base64.encodebytes(body).decode('ascii')
in my code, but I can't get that to work either. I get the error
UnicodeError: encoding with 'idna' codec failed (UnicodeError: label empty or too long)
Any suggestions on how to upload a PDF in Python 3 into Salesforce as an attachment using simple_salesforce?

I was working on this and found a few resources to upload files. I created one for myself using that.
Below is the code that you can use for Python and have the file uploaded on Salesforce.
import requests
import base64
import json
params = {
"grant_type": "password",
"client_id": "Your_Client_Id",
"client_secret": "Your_Client_Secret",
"username": "YOUR_EMAIL#procureanalytics.com.pcsandbox", # The email you use to login
"password": "YOUR_PASSWORD+YOUR_SECURITY_TOKEN" # Concat your password and your security token
}
r = requests.post("https://test.salesforce.com/services/oauth2/token", params=params)
# if you connect to a Sandbox, use test.salesforce.com instead
access_token = r.json().get("access_token")
instance_url = r.json().get("instance_url")
print("Access Token:", access_token)
print("Instance URL", instance_url)
#######################################################################################
# Helper function
#######################################################################################
def sf_api_call(action, parameters = {}, method = 'get', data = {}):
"""
Helper function to make calls to Salesforce REST API.
Parameters: action (the URL), URL params, method (get, post or patch), data for POST/PATCH.
"""
headers = {
'Content-type': 'application/json',
'Accept-Encoding': 'gzip',
'Authorization': 'Bearer %s' % access_token
}
if method == 'get':
r = requests.request(method, instance_url+action, headers=headers, params=parameters, timeout=30)
elif method in ['post', 'patch']:
r = requests.request(method, instance_url+action, headers=headers, json=data, params=parameters, timeout=10)
else:
# other methods not implemented in this example
raise ValueError('Method should be get or post or patch.')
print('Debug: API %s call: %s' % (method, r.url) )
if r.status_code < 300:
if method=='patch':
return None
else:
return r.json()
else:
raise Exception('API error when calling %s : %s' % (r.url, r.content))
# Test connection
print(json.dumps(sf_api_call('/services/data/v40.0/query/', {
'q': 'SELECT Account.Name, Name, CloseDate from Opportunity where IsClosed = False order by CloseDate ASC LIMIT 1'
}), indent=2))
#######################################################################################
# File Upload from directory
#######################################################################################
# 1) Create a ContentVersion
path = "Folder_name\Sample_pdf.pdf"
with open(path, "rb") as f:
encoded_string = base64.b64encode(f.read()).decode("utf-8")
ContentVersion = sf_api_call('/services/data/v40.0/sobjects/ContentVersion', method="post", data={
'Title': 'Sample_pdf file',
'PathOnClient': path,
'VersionData': encoded_string,
})
ContentVersion_id = ContentVersion.get('id')
# 2) Get the ContentDocument id
ContentVersion = sf_api_call('/services/data/v40.0/sobjects/ContentVersion/%s' % ContentVersion_id)
ContentDocument_id = ContentVersion.get('ContentDocumentId')
# 3) Create a ContentDocumentLink
Id = "Abcd123" # This Id can be anything: Account_Id or Lead_Id or Opportunity_Id
ContentDocumentLink = sf_api_call('/services/data/v40.0/sobjects/ContentDocumentLink', method = 'post', data={
'ContentDocumentId': ContentDocument_id,
'LinkedEntityId': Id,
'ShareType': 'V'
})
How to use
Step 1:
Key in your email address and password here. Please note that the password here is a string of 'your password' and your 'security token'.
# Import libraries
import requests
import base64
import json
params = {
"grant_type": "password",
"client_id": "Your_Client_Id",
"client_secret": "Your_Client_Secret",
"username": "YOUR_EMAIL#procureanalytics.com.pcsandbox", # The email you use to login
"password": "YOUR_PASSWORD+YOUR_SECURITY_TOKEN" # Concat your password and your security token
}
r = requests.post("https://test.salesforce.com/services/oauth2/token", params=params)
# if you connect to a Sandbox, use test.salesforce.com instead
access_token = r.json().get("access_token")
instance_url = r.json().get("instance_url")
print("Access Token:", access_token)
print("Instance URL", instance_url)
You can get your security token on Salesforce through Account >> Settings >> Reset My Security Token.
You will receive an email from salesforce with your security token.
Step 2:
Choose appropriate link for request.post
For Sandbox environment:
r = requests.post("https://test.salesforce.com/services/oauth2/token", params=params)
For Production enviroment:
r = requests.post("https://login.salesforce.com/services/oauth2/token", params=params)
After your initial connection is ready, the output on the second cell should look something like this:
Access Token: !2864b793dbce2ad32c1ba7d71009ec84.b793dbce2ad32c1ba7d71009ec84
Instance URL https://your_company_name--pcsandbox.my.salesforce.com
Step 3:
Under the 'File upload from a directory' cell (Cell #5), specify your file path.
In my case, this is
# 1) Create a ContentVersion
path = "Folder_name\Sample_pdf.pdf"
with open(path, "rb") as f:
encoded_string = base64.b64encode(f.read()).decode("utf-8")
Step 4:
Under the same cell, mention the Id in which you would like to upload your file.
The sample code below is uploading a file on Accounts object for an account with Id: Abcd123
# 3) Create a ContentDocumentLink
Id = "Abcd123" # This Id can be anything: Account_Id or Lead_Id or Opportunity_Id
ContentDocumentLink = sf_api_call('/services/data/v40.0/sobjects/ContentDocumentLink', method = 'post', data={
'ContentDocumentId': ContentDocument_id,
'LinkedEntityId': Id,
'ShareType': 'V'
})

Way2SMS python code not sending SMS whereas POSTS returns Success

I get Successful status code for my POST requests , Login is working fine , but the SMS is not sent
I have gone through all codes on internet, most of them are out-dated, as the site has changed its code.
import requests as req
def login_way2sms():
with req.Session() as mySession:
url = 'http://www.way2sms.com/re-login'
home_url = 'http://www.way2sms.com/'
mobile = [your registered mobile number]
password = [your password]
headers = dict(Referrer="http://www.way2sms.com/")
before = mySession.get(home_url)
login_data = dict(mobileNo=mobile, password=password, CatType='', redirectPage='', pid='')
mySession.post(url, data=login_data, headers=headers)
after = mySession.get(home_url)
return mySession
def send_msg(mysession): #saw sendsms-toss in Inspect under Network tab
url = 'http://www.way2sms.com/smstoss'
home_url = 'http://www.way2sms.com/'
sms_url = 'http://www.way2sms.com/send-sms'
group_contact_url = 'http://www.way2sms.com/GroupContacts'
web_msg_count_url = 'http://www.way2sms.com/CheckWebMsgCount'
headers = dict(Referrer="http://www.way2sms.com/send-sms")
before = mysession.get(home_url)
token = '2B7CF7C9D2F14935795B08DAD1729ACF'
message = 'How to make this work?'
mobile = '[a valid phone number]'
ssaction = 'undefined'
senderid = 'WAYSMS'
msg_data = dict(Token=token, message=message, toMobile=mobile, ssaction=ssaction, senderId=senderid)
mysession.post(url, data=msg_data, headers=headers)
after = mysession.get(home_url)
mysession.post(group_contact_url, headers=headers)
group_contacts = mysession.get(sms_url)
mysession.post(web_msg_count_url, headers=headers)
web_msg_count = mysession.get(sms_url)
# last 2 POST requests send after clicking the Send Msg button
def main():
login_way2sms() #login using username and password
send_msg(currsession) #send sms
main()

I finally got it right , Thanks for replying. We can do it without using the apikey and secret keys as well, Here take a look at this. And init is just another script where constant urls and login is defined, nothing much there.
import requests as req
import init
def login_way2sms(credential):
with req.Session() as mySession:
mobile = credential.username
password = credential.password
headers = dict(Referrer="http://www.way2sms.com/")
login_data = dict(mobileNo=mobile, password=password, CatType='', redirectPage='', pid='')
mySession.post(init.login_url, data=login_data, headers=headers)
return mySession
def get_token(mysession):
cookies = mysession.cookies['JSESSIONID']
token = cookies[4:]
return token
def send_msg(mysession, token):
"""
:rtype: req.Session()
"""
headers = dict(Referrer="http://www.way2sms.com/send-sms")
message = 'Hi, I am Upgraded a little!!!'
mobile = '[valid phone]'
msg_data = dict(Token=token, message=message, toMobile=mobile, ssaction=init.ssaction, senderId=init.senderid)
mysession.post(init.sms_url, data=msg_data, headers=headers)
def main():
credential = init.enter_credentials()
currsession = login_way2sms(credential)
reply = currsession.get(init.home_url)
page_content: str = str(reply.content)
if (reply.status_code == 200) and (page_content.find('send-sms', 10, 200) != -1):
print("Login Successful!\n")
else:
print("Login Failed , Try again\n")
credential = init.enter_credentials()
currsession = login_way2sms(credential)
token = get_token(currsession)
send_msg(currsession, token)
main()

The following method and code worked for me after creating a free account at way2sms (I hope you already did it). Then click on API tab then campaign at left. Then create test API and Secret Key (free with 25 message limit). Then use the following code--
import requests
import json
URL = 'http://www.way2sms.com/api/v1/sendCampaign'
# get request
def sendPostRequest(reqUrl, apiKey, secretKey, useType, phoneNo, senderId, textMessage):
req_params = {
'apikey':'your_apiKey',
'secret':'your_secretKey',
'usetype':'stage'
'phone': 'receiving_phone_number',
'message':'The textMessage I want to send',
'senderid':'Your Name'
}
return requests.post(reqUrl, req_params)
# get response
response = sendPostRequest(URL, 'provided-api-key', 'provided-secret', 'prod/stage', 'valid-to-mobile', 'active-sender-id', 'message-text' )
"""
Note:-
you must provide apikey, secretkey, usetype, mobile, senderid and message values
and then requst to api
"""
# print response if you want
print response.text
Just fill the fields and run in python 2.7. Working perfectly on any Indian number.

Why my requests session expire?

I am using requests 2.12.1 library in Python 2.7 and Django 1.10 for consume web services. When I use a session for save cookies and use persistence, and pass 10 seconds ~ without use any web service, my view regenerates the object requests.Session()...
This makes web service doesn't serve me, because my view has changed the cookies.
This is my Views.py:
client_session = requests.Session()
#watch_login
def loginUI(request):
response = client_session.post(URL_API+'login/', data={'username': username, 'password': password,})
json_login = response.json()
#login_required(login_url="/login/")
def home(request):
response_statistics = client_session.get(URL_API+'statistics/')
log('ClientSession: '+str(client_session))
try:
json_statistics = response_statistics.json()
except ValueError:
log('ExcepcionClientSession: '+str(client_session))
return logoutUI(request)
return render(request, "UI/home.html", {
'phone_calls' : json_statistics['phone_calls'],
'mobile_calls' : json_statistics['mobile_calls'],
'other_calls' : json_statistics['other_calls'],
'top_called_phones' : json_statistics['top_called_phones'],
'call_ranges_week' : json_statistics['call_ranges_week'],
'call_ranges_weekend' : json_statistics['call_ranges_weekend'],
'access_data' : accessData(request.user.username),
})
def userFeaturesFormInit(clientRequest):
log('FeaturesClientSession: '+str(client_session))
response = client_session.get(URL_API+'features/')
try:
json_features = response.json()
except ValueError as e:
log('ExcepcionFeaturesClientSession: '+str(client_session))
raise e
Thank you.

I fixed it specifying cookies manually, and saving it in the request.
client_session = requests.Session()
response = client_session.post(URL_API+'login/', {'username': username, 'password': password,})
request.session['cookiecsrf'] = client_session.cookies['csrftoken']
request.session['cookiesession'] = client_session.cookies['sessionid']
And sending it in the gets/posts:
cookies = {'csrftoken' : request.session['cookiecsrf'], 'sessionid': request.session['cookiesession']}
response = requests.get(URL, cookies=cookies)

Creating a Windows Azure Service through the REST API on Python

I'm trying to create a service on Windows Azure using the REST API and Python. The code is as follows:
def create_service(self):
subscription_id = self.get_user_subscription_id()
auth = self.get_user_cert_data()
if auth is None or subscription_id is None:
return [(False, "Datos de autenticacion incorrectos")]
else:
key_file, cert_file = auth
service_name = str(int(time.time()*100))
try:
conn = httplib.HTTPSConnection(self.AZURE_SERVER, self.AZURE_PORT, key_file=key_file, cert_file=cert_file)
uri = "https://%s/%s/services/hostedservices" % (self.AZURE_SERVER,subscription_id)
service_create_xml = '''
<CreateHostedService xmlns="http://schemas.microsoft.com/windowsazure">
<ServiceName>%s</ServiceName>
<Label>%s</Label>
<Description>Service %s created by the IM</Description>
<Location>West Europe</Location>
</CreateHostedService>
''' % (service_name, base64.b64encode(service_name), service_name )
conn.request('POST', uri, body = service_create_xml, headers = {'x-ms-version' : '2013-03-01', 'ContentType' : 'application/xml'})
resp = conn.getresponse()
except Exception, ex:
self.logger.exception("Error creando el service")
return None
if resp.status != 201:
self.logger.error("Error creando el service: Codigo " + str(resp.status) + " Reason: " + str(resp.reason))
return None
return service_name
However, for some unknown reason the response is always Error 400 Bad Request. Anyone knows what am I doing wrong? Thanks in advance.

For headers here:
headers = {'x-ms-version' : '2013-03-01', 'ContentType' :
'application/xml'}
Try using Content-Type instead of ContentType