fix setting default mimetype of inputfile

azogue · azogue · commit b46bdf53049a · 2017-05-29T08:30:29.000+02:00
diff --git a/telegram/inputfile.py b/telegram/inputfile.py
@@ -69,7 +69,11 @@ def __init__(self, data):
                 if not self.filename or '.' not in self.filename:
                     self.filename = self.mimetype.replace('/', '.')
             except TelegramError:
-                self.mimetype = mimetypes.guess_type(self.filename)[0] or DEFAULT_MIME_TYPE
+                if self.filename:
+                    self.mimetype = mimetypes.guess_type(
+                        self.filename)[0] or DEFAULT_MIME_TYPE
+                else:
+                    self.mimetype = DEFAULT_MIME_TYPE
 
     @property
     def headers(self):
