Further integration of the documentation for the sqlite3 module. There's still

quite some content to move over from the pysqlite manual, but it's a start now.

Doc/lib/sqlite3/mysumaggr.py

@@ -0,0 +1,20 @@
+import sqlite3
+
+class MySum:
+    def __init__(self):
+        self.count = 0
+
+    def step(self, value):
+        self.count += value
+
+    def finalize(self):
+        return self.count
+
+con = sqlite3.connect(":memory:")
+con.create_aggregate("mysum", 1, MySum)
+cur = con.cursor()
+cur.execute("create table test(i)")
+cur.execute("insert into test(i) values (1)")
+cur.execute("insert into test(i) values (2)")
+cur.execute("select mysum(i) from test")
+print cur.fetchone()[0]