fix some item attr confusion

looper/project.py

@@ -115,14 +115,14 @@ def __init__(
 
         for attr_name in CLI_PROJ_ATTRS:
             if attr_name in kwargs:
-                setattr(self[EXTRA_KEY], attr_name, kwargs[attr_name])
+                getattr(self,EXTRA_KEY)[attr_name] = kwargs[attr_name]
         self._samples_by_interface = self._samples_by_piface(self.piface_key)
         self._interfaces_by_sample = self._piface_by_samples()
         self.linked_sample_interfaces = self._get_linked_pifaces()
-        if FILE_CHECKS_KEY in self[EXTRA_KEY]:
-            setattr(self, "file_checks", not self[EXTRA_KEY][FILE_CHECKS_KEY])
-        if DRY_RUN_KEY in self[EXTRA_KEY]:
-            setattr(self, DRY_RUN_KEY, self[EXTRA_KEY][DRY_RUN_KEY])
+        if FILE_CHECKS_KEY in getattr(self,EXTRA_KEY):
+            setattr(self, "file_checks", not getattr(self,EXTRA_KEY)[FILE_CHECKS_KEY])
+        if DRY_RUN_KEY in getattr(self,EXTRA_KEY):
+            setattr(self, DRY_RUN_KEY, getattr(self,EXTRA_KEY)[DRY_RUN_KEY])
         self.dcc = (
             None
             if divcfg_path is None
@@ -184,7 +184,7 @@ def _extra_cli_or_cfg(self, attr_name, strict=False):
          found
         """
         try:
-            result = getattr(self[EXTRA_KEY], attr_name)
+            result = getattr(getattr(self,EXTRA_KEY), attr_name)
         except (AttributeError, KeyError):
             pass
         else:
@@ -233,7 +233,7 @@ def _out_subdir_path(self, key: str, default: str) -> str:
         :return str: path to the folder
         """
         parent = getattr(self, OUTDIR_KEY)
-        child = getattr(self[EXTRA_KEY], key, default) or default
+        child = getattr(getattr(self,EXTRA_KEY), key, default) or default
         return os.path.join(parent, child)
 
     def make_project_dirs(self):
@@ -744,7 +744,9 @@ def fetch_samples(
     if not selector_include and not selector_exclude:
         # Default case where user does not use selector_include or selector exclude.
         # Assume that user wants to exclude samples if toggle = 0.
-        if any([hasattr(s, "toggle") for s in prj.samples]):
+        # if any([hasattr(s, "toggle") for s in prj.samples]):
+        # if any("toggle" in s for s in prj.samples):
+        if "toggle" in prj.samples[0]:  # assume the samples have the same schema
             selector_exclude = [0]
 
             def keep(s):