Merge pull request #104 from isteinbrecher/allow-custom-python2-path

Allow custom python2 path

Author: isteinbrecher

src/cubitpy/conf.py

@@ -135,14 +135,20 @@ def get_cubit_interpreter(cls):
             cubit_python_interpreter = python3_files[0]
             return cubit_python_interpreter
         else:
+            python2_path_env = get_path(
+                "CUBITPY_PYTHON2", os.path.isfile, throw_error=False
+            )
+            if python2_path_env is not None:
+                return python2_path_env
+
             if shutil.which("python2.7") is not None:
                 return "python2.7"
 
-            imcs_python2_path = "/imcs/public/compsim/opt/Python-2.7.18/python"
-            if os.path.exists(imcs_python2_path):
-                return imcs_python2_path
-
-            raise ValueError("Could not find a python2 interpreter")
+            raise ValueError(
+                "Could not find a python2 interpreter. "
+                "You can specify this by setting the environment variable "
+                "CUBITPY_PYTHON2 to the path of your python2 interpreter."
+            )
 
     @classmethod
     def is_coreform(cls):