starting to rewrite

src/rds2py/__init__.py

@@ -24,4 +24,4 @@
     as_summarized_experiment,
 )
 
-from .parser import read_rds, get_class
+from .rds_interface import read_rds, get_class

src/rds2py/generics.py

@@ -0,0 +1,57 @@
+from functools import singledispatch
+from importlib import import_module
+
+from .rds_interface import get_class, load_rds
+
+__author__ = "jkanche"
+__copyright__ = "jkanche"
+__license__ = "MIT"
+
+registry = {}
+
+
+@singledispatch
+def save_object(x, path: str):
+    """Save a Python object as RDS file
+
+    Args:
+        x:
+            Object to save.
+
+        path:
+            Path to save the object.
+    """
+    raise NotImplementedError(
+        "No `save_object` method implemented for '" + type(x[0]).__name__ + "' objects."
+    )
+
+
+def read_object(path: str, **kwargs):
+    """Read an object from RDS file.
+
+    Args:
+        path:
+            Path to the RDS file.
+
+        kwargs:
+            Further arguments, passed to individual methods.
+
+    Returns:
+        Some kind of object.
+    """
+    _robj = load_rds(path=path)
+    _class_name = get_class(_robj)
+
+    if _class_name not in registry:
+        raise NotImplementedError(
+            "no `read_object` method implemented for '{_class_name}' objects."
+        )
+
+    command = registry[_class_name]
+    if isinstance(command, str):
+        first_period = command.find(".")
+        mod = import_module(command[:first_period])
+        command = getattr(mod, command[first_period + 1 :])
+        registry[_class_name] = command
+
+    return command(path, **kwargs)

src/rds2py/granges.py

@@ -2,7 +2,7 @@
 from iranges import IRanges
 from biocframe import BiocFrame
 
-from .parser import get_class
+from .rds_interface import get_class
 from .pdf import as_pandas_from_dframe
 
 __author__ = "jkanche"

src/rds2py/interface.py

@@ -5,7 +5,7 @@
 from summarizedexperiment import SummarizedExperiment
 from biocframe import BiocFrame
 
-from .parser import get_class
+from .rds_interface import get_class
 from .pdf import as_pandas_from_data_frame, as_pandas_from_dframe
 
 __author__ = "jkanche"