--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/python/cc/ex3.py	Thu Jun 11 21:23:19 2026 +0100
@@ -0,0 +1,19 @@
+'''Use this to get called by cdx2tsv.py'''
+
+from collections import defaultdict
+
+def init():
+  global d
+  d=defaultdict(int)
+
+def cbf(lang):
+  global d
+  if lang=='NA' or ',' in lang:
+    return
+  d[lang] += 1
+
+def finish():
+  global d
+  for k,v in (sorted(d.items(), key = lambda i : i[1], reverse = True):
+    print(v, k)
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/python/cc/ex4.py	Thu Jun 11 21:23:19 2026 +0100
@@ -0,0 +1,25 @@
+'''Use this to get called by cdx2tsv.py'''
+
+from collections import defaultdict
+from datetime import datetime
+
+def init():
+  global d, N, M
+  d=defaultdict(lambda: defaultdict(int))
+  N = M = 0
+
+def cbf(lang,lastmod):
+  global d, N, M
+  N += 1
+  if lastmod=='NA' or lang=='NA' or ',' in lang:
+    return
+  M += 1
+  d[datetime.fromtimestamp(int(lastmod)).year][lang] += 1
+
+def finish():
+  global d, N, M
+  print("%s with lastmod out of %s in total"%(M, N))
+  for k,lv in sorted(d.items(), key = lambda i : i[0]):
+    print(k, ["%s: %d"%(k,v) for k,v in (sorted(lv.items(), key = lambda i : i[1],
+                                                reverse = True))][:10])
+