Add a new .stringify() function to visualize TLObjects more easily

telethon/tl/mtproto_request.py

@@ -30,7 +30,79 @@ def need_resend(self):
             self.confirmed and not self.confirm_received and
             datetime.now() - self.send_time > timedelta(seconds=3))
 
+    @staticmethod
+    def pretty_format(obj, indent=None):
+        """Pretty formats the given object as a string which is returned.
+           If indent is None, a single line will be returned.
+        """
+        if indent is None:
+            if isinstance(obj, MTProtoRequest):
+                return '{{{}: {}}}'.format(
+                    type(obj).__name__,
+                    MTProtoRequest.pretty_format(obj.to_dict())
+                )
+            if isinstance(obj, dict):
+                return '{{{}}}'.format(', '.join(
+                    '{}: {}'.format(
+                        k, MTProtoRequest.pretty_format(v)
+                    ) for k, v in obj.items()
+                ))
+            elif isinstance(obj, str):
+                return '"{}"'.format(obj)
+            elif hasattr(obj, '__iter__'):
+                return '[{}]'.format(
+                    ', '.join(MTProtoRequest.pretty_format(x) for x in obj)
+                )
+            else:
+                return str(obj)
+        else:
+            result = []
+            if isinstance(obj, MTProtoRequest):
+                result.append('{')
+                result.append(type(obj).__name__)
+                result.append(': ')
+                result.append(MTProtoRequest.pretty_format(
+                    obj.to_dict(), indent
+                ))
+
+            elif isinstance(obj, dict):
+                result.append('{\n')
+                indent += 1
+                for k, v in obj.items():
+                    result.append('\t' * indent)
+                    result.append(k)
+                    result.append(': ')
+                    result.append(MTProtoRequest.pretty_format(v, indent))
+                    result.append(',\n')
+                indent -= 1
+                result.append('\t' * indent)
+                result.append('}')
+
+            elif isinstance(obj, str):
+                result.append('"')
+                result.append(obj)
+                result.append('"')
+
+            elif hasattr(obj, '__iter__'):
+                result.append('[\n')
+                indent += 1
+                for x in obj:
+                    result.append('\t' * indent)
+                    result.append(MTProtoRequest.pretty_format(x, indent))
+                    result.append(',\n')
+                indent -= 1
+                result.append('\t' * indent)
+                result.append(']')
+
+            else:
+                result.append(str(obj))
+
+            return ''.join(result)
+
     # These should be overrode
+    def to_dict(self):
+        return {}
+
     def on_send(self, writer):
         pass
 

telethon_generator/tl_generator.py

@@ -179,6 +179,7 @@ def _write_source_code(tlobject, builder, depth, type_constructors):
 
         # Both types and functions inherit from
         # MTProtoRequest so they all can be sent
+        # TODO MTProtoRequest is not the best name for a type
         builder.writeln('from {}.tl.mtproto_request import MTProtoRequest'
                         .format('.' * depth))
 
@@ -408,9 +409,12 @@ def _write_source_code(tlobject, builder, depth, type_constructors):
         builder.end_block()
 
         builder.writeln('def __str__(self):')
-        builder.writeln('return {}'.format(str(tlobject)))
-        # builder.end_block()  # No need to end the last block
+        builder.writeln('return MTProtoRequest.pretty_format(self)')
+        builder.end_block()
 
+        builder.writeln('def stringify(self):')
+        builder.writeln('return MTProtoRequest.pretty_format(self, indent=0)')
+        # builder.end_block()  # No need to end the last block
 
     @staticmethod
     def get_class_name(tlobject):