Merge pull request #142 from GillesPy2/hotfix-for-ssacsolver-issue

Ordered dictionaries are better than dictionaries ; changed data stru…
StochSS · Jun 25, 2019 · a761a15 · a761a15
2 parents 6a7893d + 95255b8
commit a761a15
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/gillespy2/core/gillespy2.py b/gillespy2/core/gillespy2.py
@@ -140,7 +140,7 @@ def sanitized_species_names(self):
         later on by GillesPySolvers evaluating reaction propensity functions.
         :return: the dictionary mapping user species names to their internal GillesPy notation.
         """
-        species_name_mapping = {}
+        species_name_mapping = OrderedDict([])
         for i, name in enumerate(self.listOfSpecies.keys()):
             species_name_mapping[name] = 'S[{}]'.format(i)
         return species_name_mapping
@@ -235,7 +235,8 @@ def sanitized_parameter_names(self):
         later on by GillesPySolvers evaluating reaction propensity functions.
         :return: the dictionary mapping user parameter names to their internal GillesPy notation.
         """
-        parameter_name_mapping = {'vol': 'V'}
+        parameter_name_mapping = OrderedDict()
+        parameter_name_mapping['vol'] = 'V'
         for i, name in enumerate(self.listOfParameters.keys()):
             if name not in parameter_name_mapping:
                 parameter_name_mapping[name] = 'P{}'.format(i)