[bug fix] fix read_as() with file list of length 1

Author: gipert

src/lgdo/lh5/core.py

@@ -113,13 +113,17 @@ def read(
         `n_rows_read` will be``1``. For tables it is redundant with
         ``table.loc``. If `obj_buf` is ``None``, only `object` is returned.
     """
+    if not isinstance(lh5_file, str | h5py.File) and len(list(lh5_file)) == 1:
+        lh5_file = lh5_file[0]
+
     if isinstance(lh5_file, h5py.File):
         lh5_obj = lh5_file[name]
     elif isinstance(lh5_file, str):
         lh5_file = h5py.File(lh5_file, mode="r", locking=locking)
         lh5_obj = lh5_file[name]
     else:
         lh5_files = list(lh5_file)
+
         n_rows_read = 0
         obj_buf_is_new = False
 

tests/lh5/test_core.py

@@ -38,6 +38,8 @@ def test_read_as(lh5_file):
     )
     assert obj1.equals(obj2)
 
+    obj2 = lh5.read_as("/data/struct/table", [lh5_file], "ak")
+
 
 def test_read_multiple_files(lh5_file):
     lh5_obj = lh5.read("/data/struct/array", [lh5_file, lh5_file, lh5_file])