remove metadata conversion

libzim/libzim.pyx

@@ -576,8 +576,6 @@ class Creator(_Creator):
         self, name: str, content: Union[str, bytes, datetime.date, datetime.datetime],
         mimetype: str = "text/plain;charset=UTF-8"
     ):
-        if name == "Date" and isinstance(content, (datetime.date, datetime.datetime)):
-            content = content.strftime("%Y-%m-%d").encode("UTF-8")
         if isinstance(content, str):
             content = content.encode("UTF-8")
         super().add_metadata(name=name, content=content, mimetype=mimetype)

tests/test_libzim_creator.py

@@ -1,7 +1,6 @@
 #!/usr/bin/env python
 
 import base64
-import datetime
 import itertools
 import os
 import pathlib
@@ -400,13 +399,8 @@ def test_creator_metadata(fpath, lipsum_item):
     with Creator(fpath) as c:
         c.add_item(lipsum_item)
         for name, value in metadata.items():
-            if name == "Date":
-                continue
             c.add_metadata(name, value)
 
-        mdate = datetime.date(*[int(x) for x in metadata.get("Date").split("-")])
-        c.add_metadata("Date", mdate)
-
     zim = Archive(fpath)
     for name, value in metadata.items():
         assert zim.get_metadata(name).decode("UTF-8") == value