diff --git a/github/ContentFile.py b/github/ContentFile.py
index 10b30ff0..67df2737 100644
--- a/github/ContentFile.py
+++ b/github/ContentFile.py
@@ -39,9 +39,6 @@ import github.GithubObject
 import github.Repository
 
 
-atLeastPython3 = sys.hexversion >= 0x03000000
-
-
 class ContentFile(github.GithubObject.CompletableGithubObject):
     """
     This class represents ContentFiles. The reference can be found here https://developer.github.com/v3/repos/contents/#get-contents
@@ -61,11 +58,7 @@ class ContentFile(github.GithubObject.CompletableGithubObject):
     @property
     def decoded_content(self):
         assert self.encoding == "base64", "unsupported encoding: %s" % self.encoding
-        if atLeastPython3:
-            content = bytearray(self.content, "utf-8")  # pragma no cover (covered by tests with Python 3.2)
-        else:
-            content = self.content
-        return base64.b64decode(content)
+        return base64.b64decode(bytearray(self.content, "utf-8"))
 
     @property
     def download_url(self):
diff --git a/github/GithubObject.py b/github/GithubObject.py
index b5462cf0..d78bad56 100644
--- a/github/GithubObject.py
+++ b/github/GithubObject.py
@@ -231,10 +231,7 @@ class GithubObject(object):
         Converts the object to a nicely printable string.
         """
         def format_params(params):
-            if atLeastPython3:
-                items = list(params.items())
-            else:
-                items = list(params.items())
+            items = list(params.items())
             for k, v in sorted(items, key=itemgetter(0), reverse=True):
                 isText = isinstance(v, (str, six.text_type))
                 if isText and not atLeastPython3:
diff --git a/github/Requester.py b/github/Requester.py
index 46f68e10..cb52252c 100644
--- a/github/Requester.py
+++ b/github/Requester.py
@@ -80,10 +80,7 @@ class RequestsResponse:
         self.text = r.text
 
     def getheaders(self):
-        if atLeastPython3:
-            return list(self.headers.items())
-        else:
-            return six.iteritems(self.headers)
+        return six.iteritems(self.headers)
 
     def read(self):
         return self.text
@@ -231,10 +228,7 @@ class Requester:
 
         if password is not None:
             login = login_or_token
-            if atLeastPython3:
-                self.__authorizationHeader = "Basic " + base64.b64encode((login + ":" + password).encode("utf-8")).decode("utf-8").replace('\n', '')  # pragma no cover (Covered by Authentication.testAuthorizationHeaderWithXxx with Python 3)
-            else:
-                self.__authorizationHeader = "Basic " + base64.b64encode(login + ":" + password).replace('\n', '')
+            self.__authorizationHeader = "Basic " + base64.b64encode((login + ":" + password).encode("utf-8")).decode("utf-8").replace('\n', '')
         elif login_or_token is not None:
             token = login_or_token
             self.__authorizationHeader = "token " + token
@@ -323,8 +317,8 @@ class Requester:
         if len(data) == 0:
             return None
         else:
-            if atLeastPython3 and isinstance(data, bytes):  # pragma no branch (Covered by Issue142.testDecodeJson with Python 3)
-                data = data.decode("utf-8")  # pragma no cover (Covered by Issue142.testDecodeJson with Python 3)
+            if isinstance(data, bytes):
+                data = data.decode("utf-8")
             try:
                 return json.loads(data)
             except ValueError: