Complete day 6

06/part1

@@ -0,0 +1,14 @@
+#!/usr/bin/python3
+
+import string
+
+sum = 0
+with open("input") as fh:
+    groups = fh.read().split("\n\n")
+    for g in groups:
+        yes = set()
+        for c in g:
+            if c in string.ascii_lowercase:
+                yes.add(c)
+        sum += len(yes)
+print(sum)

06/part2

@@ -0,0 +1,16 @@
+#!/usr/bin/python3
+
+import string
+
+sum = 0
+with open("input") as fh:
+    groups = fh.read().split("\n\n")
+    for g in groups:
+        g = g.strip()
+        g_yes = set(string.ascii_lowercase)
+        for p in g.split("\n"):
+            p_yes = set(p)
+            g_yes = g_yes & p_yes
+        sum += len(g_yes)
+        print(g.replace("\n", "."), g_yes, sum)
+print(sum)