[run_selector] some fixes

snapshotprocessor.py

@@ -349,7 +349,7 @@ class SnapshotProcessor(HDF5Container):
             )
 
         self.info = selector.info[self.run][self.num]
-        self.namelist = selector.namelist[self.run][self.num]
+        self.namelist = selector.namelist[self.run]
         self.lbox = self.info["boxlen"]
 
         # Get time
@@ -1024,7 +1024,7 @@ class SnapshotProcessor(HDF5Container):
             omega = self.get_value("/maps/omega_mwavg_z", unit=U.s ** -1)
             space_coeff = self.info["unit_length"].express(U.m)
 
-        map_size = self.pp_params.pymses.map_size
+        map_size = self.params.pymses.map_size
 
         if coarsen_factor > 1:
             map_size = map_size // coarsen_factor