diff --git a/telegram/contact.py b/telegram/contact.py
index dd7edb768..045b291c3 100644
--- a/telegram/contact.py
+++ b/telegram/contact.py
@@ -30,4 +30,4 @@ class Contact(Base):
             json_data['last_name'] = self.last_name
         if self.user_id:
             json_data['user_id'] = self.user_id
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/document.py b/telegram/document.py
index 65acf1611..6e9eb2827 100644
--- a/telegram/document.py
+++ b/telegram/document.py
@@ -41,4 +41,4 @@ class Document(Base):
             json_data['mime_type'] = self.mime_type
         if self.file_size:
             json_data['file_size'] = self.file_size
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/forcereply.py b/telegram/forcereply.py
index e531f371b..28be1fd43 100644
--- a/telegram/forcereply.py
+++ b/telegram/forcereply.py
@@ -21,4 +21,4 @@ class ForceReply(ReplyMarkup):
         json_data = {'force_reply': self.force_reply}
         if self.selective:
             json_data['selective'] = self.selective
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/groupchat.py b/telegram/groupchat.py
index aa6d707e5..1f28c9c36 100644
--- a/telegram/groupchat.py
+++ b/telegram/groupchat.py
@@ -20,4 +20,4 @@ class GroupChat(Base):
     def to_json(self):
         json_data = {'id': self.id,
                      'title': self.title}
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/location.py b/telegram/location.py
index 66de52d82..4a1942b69 100644
--- a/telegram/location.py
+++ b/telegram/location.py
@@ -20,4 +20,4 @@ class Location(Base):
     def to_json(self):
         json_data = {'longitude': self.longitude,
                      'latitude': self.latitude}
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/message.py b/telegram/message.py
index 62295ad31..ccc26f14e 100644
--- a/telegram/message.py
+++ b/telegram/message.py
@@ -203,4 +203,4 @@ class Message(Base):
             json_data['delete_chat_photo'] = self.delete_chat_photo
         if self.group_chat_created:
             json_data['group_chat_created'] = self.group_chat_created
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/photosize.py b/telegram/photosize.py
index 5ee587ab7..6e4db482c 100644
--- a/telegram/photosize.py
+++ b/telegram/photosize.py
@@ -29,4 +29,4 @@ class PhotoSize(Base):
                      'height': self.height}
         if self.file_size:
             json_data['file_size'] = self.file_size
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/replymarkup.py b/telegram/replymarkup.py
index de6992a89..86b4166d4 100644
--- a/telegram/replymarkup.py
+++ b/telegram/replymarkup.py
@@ -4,4 +4,4 @@ from .telegram_boject_base import Base
 
 class ReplyMarkup(Base):
     def to_json(self):
-        raise NotImplementedError
\ No newline at end of file
+        raise NotImplementedError
diff --git a/telegram/sticker.py b/telegram/sticker.py
index 536dcbe97..42c4b08fd 100644
--- a/telegram/sticker.py
+++ b/telegram/sticker.py
@@ -39,4 +39,4 @@ class Sticker(Base):
                      'thumb': self.thumb.to_json()}
         if self.file_size:
             json_data['file_size'] = self.file_size
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/update.py b/telegram/update.py
index daf85ad45..df3fd0666 100644
--- a/telegram/update.py
+++ b/telegram/update.py
@@ -27,4 +27,4 @@ class Update(Base):
         json_data = {'update_id': self.update_id}
         if self.message:
             json_data['message'] = self.message.to_json()
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/user.py b/telegram/user.py
index d8e61412e..356c46c95 100644
--- a/telegram/user.py
+++ b/telegram/user.py
@@ -38,4 +38,4 @@ class User(Base):
             json_data['last_name'] = self.last_name
         if self.username:
             json_data['username'] = self.username
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/userprofilephotos.py b/telegram/userprofilephotos.py
index c583585e4..b6e1eddfe 100644
--- a/telegram/userprofilephotos.py
+++ b/telegram/userprofilephotos.py
@@ -33,4 +33,4 @@ class UserProfilePhotos(Base):
             json_data['photos'] = []
             for photo in self.photos:
                 json_data['photos'].append([x.to_json() for x in photo])
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)
diff --git a/telegram/video.py b/telegram/video.py
index 3689bdd98..093f15b5c 100644
--- a/telegram/video.py
+++ b/telegram/video.py
@@ -53,4 +53,4 @@ class Video(Base):
             json_data['file_size'] = self.file_size
         if self.caption:
             json_data['caption'] = self.caption
-        return json.dumps(json_data)
\ No newline at end of file
+        return json.dumps(json_data)