Patterns/definitions.py-for-static-variables.md

+A class is created for a certain type of static variable, holding values, that will be used regularly in the future.
+
+``` python
+class MediaRegionality(enum.Enum):
+    REGIONAL = "Regionales Medium"
+    NATIONAL = "Überregionales Medium"
+```
+
+Then the values can be used with a naming and a sort of classification attached to them, which increases readability.
+
+``` python
+media_regionality = {
+    "altmark zeitung": MediaRegionality.REGIONAL,
+    "antenne brandenburg": MediaRegionality.REGIONAL,
+    "apotheken-umschau.de": MediaRegionality.NATIONAL,
+    [...]
+}
+```
+
+This also allows to change the values for every usage by changing only the static variable at creation, instead of all usages one by one.
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