Add post_func_skip_list to control execution of post functions

dpdata/system.py

@@ -93,6 +93,7 @@ def __init__(
         step=1,
         data=None,
         convergence_check=True,
+        post_func_skip_list=None,
         **kwargs,
     ):
         """Constructor.
@@ -163,6 +164,8 @@ def __init__(
             The raw data of System class.
         convergence_check : boolean
             Whether to request a convergence check.
+        post_func_skip_list : list of str
+            The list of post function names to skip.
         **kwargs : dict
             other parameters
         """
@@ -180,6 +183,9 @@ def __init__(
             return
         if file_name is None:
             return
+        self.post_func_skip_list = (
+            post_func_skip_list if post_func_skip_list is not None else []
+        )
         self.from_fmt(
             file_name,
             fmt,
@@ -229,7 +235,12 @@ def from_fmt_obj(self, fmtobj, file_name, **kwargs):
                 self.data = {**self.data, **data}
                 self.check_data()
             if hasattr(fmtobj.from_system, "post_func"):
+                assert isinstance(
+                    self.post_func_skip_list, list
+                ), "post_func_skip_list should be a list of string"
                 for post_f in fmtobj.from_system.post_func:
+                    if post_f in self.post_func_skip_list:
+                        continue
                     self.post_funcs.get_plugin(post_f)(self)
         return self