days 4, 5 and 6, not bad

d05/run.py

@@ -0,0 +1,17 @@
+import sys
+
+def isnice1(l):
+    if any(a+b in ['ab','cd','pq','xy'] for (a,b) in zip(l,l[1:])):
+        return False
+    vowels = sum(c in 'aeiou' for c in l)
+    inarow = any(a==b for (a,b) in zip(l,l[1:]))
+    return vowels > 2 and inarow 
+
+def isnice2(l):
+    xyxy = any(l[i:i+2] == l[j:j+2] for i in range(len(l)-1) for j in range(i+2,len(l)-1))
+    gfg = any(a == b for a,b in zip(l[0:],l[2:]))
+    return xyxy and gfg
+
+isnice = isnice2 if sys.argv[1] == "2" else isnice1
+
+print(sum(isnice(l[:-1]) for l in sys.stdin.readlines()))