Fix dataframe rendering on test

Author: kheal

corems/mass_spectrum/input/coremsHDF5.py

@@ -199,6 +199,11 @@ def get_dataframe(self, scan_index=0, time_index=-1):
             data_dict = {}
             for data_index, data in enumerate(row):
                 label = columnsLabels[data_index]
+                # if data starts with a b' it is a byte string, so decode it
+                if isinstance(data, bytes):
+                    data = data.decode("utf-8")
+                if data == "nan":
+                    data = None
                 data_dict[label] = data
 
             list_dict.append(data_dict)

corems/mass_spectrum/input/massList.py

@@ -111,7 +111,7 @@ def add_molecular_formula(self, mass_spec_obj, dataframe):
                 else:
                     adduct_atom = None
                 mfobj = MolecularFormula(formula_list, int(ion_charge_df[df_index]), mspeak_parent=mass_spec_obj[ms_peak_index] , ion_type=ion_type, adduct_atom=adduct_atom)
-                mfobj.is_isotopologue = bool(is_isotopologue_df[df_index])
+                mfobj.is_isotopologue = bool(int(is_isotopologue_df[df_index]))
                 mass_spec_obj[ms_peak_index].add_molecular_formula(mfobj)