update

lib/support/telepot2/hack.py

@@ -0,0 +1,16 @@
+try:
+    import urllib3.fields
+
+    # Do not encode unicode filename, so Telegram servers understand it.
+    def _noencode_filename(fn):
+        def w(name, value):
+            if name == 'filename':
+                return '%s="%s"' % (name, value)
+            else:
+                return fn(name, value)
+        return w
+
+    urllib3.fields.format_header_param = _noencode_filename(urllib3.fields.format_header_param)
+
+except (ImportError, AttributeError):
+    pass