adds envvar

src/dls_utilpack/envvar.py

@@ -0,0 +1,27 @@
+import os
+
+
+class Envvar:
+ """Class which covers environment variables, with default values."""
+
+ def __init__(self, name, **kwargs):
+
+ environ = kwargs.get("environ")
+
+ if environ is None:
+ environ = os.environ
+
+ self.name = name
+ self.is_set = False
+ self.value = None
+
+ if name in environ:
+ self.is_set = True
+ self.value = environ[name]
+ else:
+ if "default" in kwargs:
+ self.is_set = True
+ self.value = kwargs["default"]
+ else:
+ self.is_set = False
+ self.value = None