fix: try fixing problem with blob encoding

Joan Fontanals Martinez · Joan Fontanals Martinez · commit 4695f62d8d1b · 2022-03-23T15:48:52.000+01:00
diff --git a/docarray/document/mixins/pydantic.py b/docarray/document/mixins/pydantic.py
@@ -72,7 +72,7 @@ def from_pydantic_model(cls: Type['T'], model: 'BaseModel') -> 'T':
                 # second time is at `from_dict/from_json`, it is unnecessary yet inevitable, the result string get
                 # converted into a binary string and encoded again.
                 # consequently, we need to decode two times here!
-                fields[f_name] = base64.b64decode(base64.b64decode(value))
+                fields[f_name] = base64.b64decode(value)
             else:
                 fields[f_name] = value
 
diff --git a/docarray/document/pydantic_model.py b/docarray/document/pydantic_model.py
@@ -55,7 +55,7 @@ class PydanticDocument(BaseModel):
     def _blob2base64(cls, v):
         if v is not None:
             if isinstance(v, bytes):
-                return base64.b64encode(v).decode('utf8')
+                return base64.b64encode(v)
             else:
                 raise ValueError('must be bytes')
 
