update sign()

Author: serderovsh

tronapi/tron.py

@@ -1127,8 +1127,6 @@ def to_hex(self, val):
         If you wish to specifically convert TRX addresses to HEX,
         please use tron.address.to_hex instead.
 
-        Args:
-            val (str): Value to convert to hex.
 
         Example:
             >>> tron.to_hex("test")
@@ -1138,7 +1136,7 @@ def to_hex(self, val):
         if utils.is_bool(val):
             return self.from_decimal(+val)
 
-        if isinstance(val, (dict, object)):
+        if type(val) == dict:
             return self.from_utf8(json.dumps(val).replace(' ', ''))
 
         if utils.is_string(val):

tronapi/utils.py

@@ -23,4 +23,4 @@ def is_hex(s):
 
 
 def string_utf8_to_hex(name):
-    return bytes(name, encoding='utf-8').hex()
+    return bytes(name, encoding='utf-8').hex()