Implemented LinkedInDeveloperAuthentication class that stores the 4 credentials necessary for an OAuth 1.0a flow and modified LinkedInApplication to use requests_oauthlib to do all of the heavy lifting in enabling the OAuth 1.0a flow that requires no redirects or user intervention in the event that it is passed a LinkedInDeveloperAuthentication instance. Very useful for situations in which users just want to access their own data or when developers are testing. Have not updated the README docs yet

Author: ptwobrussell

linkedin/linkedin.py

@@ -1,4 +1,5 @@
 import requests
+from requests_oauthlib import OAuth1
 import urllib
 import random
 import hashlib
@@ -52,7 +53,27 @@
                             VIRAL='VIRL')
 
 
+class LinkedInDeveloperAuthentication(object):
+    """ 
+    Uses all four credentials provided by LinkedIn as part of an OAuth 1.0a flow that provides instant
+    API access with no redirects/approvals required. Useful for situations in which users would like to 
+    access their own data or during the development process. 
+    """
+
+    def __init__(self, consumer_key, consumer_secret, user_token, user_secret, redirect_uri, permissions=[]):
+        self.consumer_key = consumer_key
+        self.consumer_secret = consumer_secret
+        self.user_token = user_token
+        self.user_secret = user_secret
+        self.redirect_uri = redirect_uri
+        self.permissions = permissions
+
 class LinkedInAuthentication(object):
+    """ 
+    Implements a standard OAuth 2.0 flow that involves redirection for users to authorize the application
+    to access account data.
+    """
+
     def __init__(self, key, secret, redirect_uri, permissions=[]):
         self.AUTHORIZATON_URL = 'https://www.linkedin.com/uas/oauth2/authorization'
         self.ACCESS_TOKEN_URL = 'https://www.linkedin.com/uas/oauth2/accessToken'
@@ -124,7 +145,7 @@ def parse(cls, selector):
 class LinkedInApplication(object):
     def __init__(self, authentication):
         assert authentication, 'Authentication instance must be provided'
-        assert type(authentication) == LinkedInAuthentication, 'Auth type mismatch'
+        assert type(authentication) in (LinkedInAuthentication, LinkedInDeveloperAuthentication), 'Auth type mismatch'
         self.BASE_URL = 'https://api.linkedin.com'
         self.authentication = authentication
 
@@ -138,14 +159,24 @@ def make_request(self, method, url, data=None, params=None, headers=None,
         else:
             headers.update({'x-li-format': 'json', 'Content-Type': 'application/json'})
 
-        if params is None:
-            params = {'oauth2_access_token': self.authentication.token.access_token}
-        else:
-            params['oauth2_access_token'] = self.authentication.token.access_token
+        
+        kw = dict(data=data, params=params,
+                  headers=headers, timeout=timeout)
 
-        return requests.request(method.upper(), url, data=data, params=params,
-                                headers=headers, timeout=timeout)
+        if isinstance(self.authentication, LinkedInDeveloperAuthentication):
+            # Let requests_oauthlib.OAuth1 to do *all* of the work here
+            auth = OAuth1(self.authentication.consumer_key, self.authentication.consumer_secret, 
+                          self.authentication.user_token, self.authentication.user_secret)
+            kw.update({'auth' : auth})
+        else:
+            if params is None:
+                params = {'oauth2_access_token': self.authentication.token.access_token}
+            else:
+                params['oauth2_access_token'] = self.authentication.token.access_token
+        
+        return requests.request(method.upper(), url, **kw)
 
+        
     def get_profile(self, member_id=None, member_url=None, selectors=None,
                     params=None, headers=None):
         if member_id: