add pathlib compatibility in sio_io as well

python/podio/sio_io.py

@@ -2,6 +2,7 @@
 """Python module for reading sio files containing podio Frames"""
 
 from ROOT import gSystem
+from root_io import convert_to_str_paths
 
 if gSystem.DynamicPathName("libpodioSioIO.so", True):
     gSystem.Load("libpodioSioIO")  # noqa: 402
@@ -20,8 +21,9 @@ def __init__(self, filename):
         """Create a reader that reads from the passed file.
 
         Args:
-            filename (str): File to open and read data from
+            filename (str or Path): File to open and read data from.
         """
+        filename = convert_to_str_paths(filename)
         self._reader = podio.SIOReader()
         self._reader.openFile(filename)
 
@@ -39,8 +41,9 @@ def __init__(self, filename):
         """Create a reader that reads from the passed file.
 
         Args:
-            filename (str): File to open and read data from
+            filename (str or Path): File to open and read data from.
         """
+        filename = convert_to_str_paths(filename)
         self._reader = podio.SIOLegacyReader()
         self._reader.openFile(filename)
         self._is_legacy = True
@@ -49,13 +52,15 @@ def __init__(self, filename):
 
 
 class Writer(BaseWriterMixin):
-    """Writer class for writing podio root files"""
+    """Writer class for writing podio root files."""
 
     def __init__(self, filename):
-        """Create a writer for writing files
+        """Create a writer for writing files.
 
         Args:
-            filename (str): The name of the output file
+            filename (str or Path): The name of the output file.
         """
+        filename = convert_to_str_paths(filename)
         self._writer = podio.SIOWriter(filename)
+
         super().__init__()