Fix approximations in bid during publish

CHANGELOG.md

@@ -17,6 +17,7 @@ at anytime.
   * fixed a race condition when inserting a blob into the database (https://github.com/lbryio/lbry/issues/1129)
   * reflector server incorrectly responding as if it has all the blobs for a stream that was only partially uploaded to it
   * `publish` raising a database error when updating a claim that we don't have a file for (https://github.com/lbryio/lbry/issues/1165)
+  * approximations of bid when cast from float to Decimal during publish
 
 ### Deprecated
   *

lbrynet/daemon/Daemon.py

@@ -2038,15 +2038,10 @@ class Daemon(AuthJSONRPCServer):
         except (TypeError, URIParseError):
             raise Exception("Invalid name given to publish")
 
-        if isinstance(bid, (float, int)):
-            bid = Decimal(bid)
-        elif isinstance(bid, six.string_types):
         try:
-                bid = Decimal(bid)
+            bid = Decimal(str(bid))
         except InvalidOperation:
             raise TypeError("Bid does not represent a valid decimal.")
-        else:
-            raise TypeError("Bid must be a decimal number represented by a string.")
 
         if bid <= 0.0:
             raise ValueError("Bid value must be greater than 0.0")