Fix typo

materialsproject · Apr 23, 2019 · 8e9a6a9 · 8e9a6a9
1 parent 9e82159
commit 8e9a6a9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/pymatgen/analysis/gb/grain.py b/pymatgen/analysis/gb/grain.py
@@ -414,8 +414,8 @@ def gb_from_parameters(self, rotation_axis, rotation_angle, expand_times=4, vacu
         elif lat_type == 'o':
             logger.info('Make sure this is for orthorhombic system')
             if ratio is None:
-                raise RuntimeError('CSL donot exist if all axial ratios are irrational'
-                                   'for orthorhombic system')
+                raise RuntimeError('CSL does not exist if all axial ratios are irrational '
+                                   'for an orthorhombic system')
             elif len(ratio) != 3:
                 raise RuntimeError('Orthorhombic system needs correct c2:b2:a2 ratio')
         elif lat_type == 'h':