Convert exponent (fix brightway-lca#156)

ccomb · Mar 7, 2023 · c2ab8aa · c2ab8aa
1 parent f5c9d28
commit c2ab8aa
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/bw2io/extractors/simapro_csv.py b/bw2io/extractors/simapro_csv.py
@@ -51,7 +51,7 @@ def to_number(obj):
             return float(obj.replace("%", "").strip()) / 100.0
         try:
             # Eval for simple expressions like "1/2"
-            return float(eval(obj.replace(",", ".").strip()))
+            return float(eval(obj.replace(",", ".").replace("^", "**").strip()))
         except NameError:
             # Formula with a variable which isn't in scope - raises NameError
             return obj

diff --git a/tests/simapro.py b/tests/simapro.py
@@ -10,6 +10,7 @@
     get_biosphere_2_3_category_migration_data,
     get_biosphere_2_3_name_migration_data,
 )
+from bw2io.extractors.simapro_csv import to_number
 
 # from bw2data.utils import recursive_str_to_unicode as _
 # from stats_arrays import UndefinedUncertainty, NoUncertainty
@@ -114,6 +115,11 @@ def test_set_lognormal_loc_value_on_import():
     assert np.abs(loc - np.log(amount)) < 1e-10
 
 
+@bw2test
+def test_to_number():
+    assert to_number("(38-15)*4185*30/0.9*10^-6") == 32.085
+
+
 class SimaProCSVImporterTest(BW2DataTest):
     # def extra_setup(self):
     #     # SimaPro importer always wants biosphere database