create wichtel tool

christmas/wichteln.py

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+# Christmas "wichteln" random people picker
+# Michi von Ah
+
+import random
+
+names = ["sepp", "max", "hans", "maria"]
+avail = names.copy()
+picked = []
+
+
+for person in names:
+    selection = random.choice(avail)
+
+    while selection == person:
+        selection = random.choice(avail)
+    avail.remove(selection)
+    print(f'{person} wichtelt {selection}')
+
+
+# Example output:
+# sepp wichtelt an hans
+# max wichtelt an maria
+# hans wichtelt an max
+# maria wichtelt an sepp