add hg and python

1 files changed, 47 insertions, 0 deletions

diff --git a/sys/src/cmd/python/Doc/lib/sqlite3/converter_point.py b/sys/src/cmd/python/Doc/lib/sqlite3/converter_point.py
new file mode 100644
index 000000000..e220e9b08
--- /dev/null
+++ b/sys/src/cmd/python/Doc/lib/sqlite3/converter_point.py
@@ -0,0 +1,47 @@
+import sqlite3
+
+class Point(object):
+    def __init__(self, x, y):
+        self.x, self.y = x, y
+
+    def __repr__(self):
+        return "(%f;%f)" % (self.x, self.y)
+
+def adapt_point(point):
+    return "%f;%f" % (point.x, point.y)
+
+def convert_point(s):
+    x, y = map(float, s.split(";"))
+    return Point(x, y)
+
+# Register the adapter
+sqlite3.register_adapter(Point, adapt_point)
+
+# Register the converter
+sqlite3.register_converter("point", convert_point)
+
+p = Point(4.0, -3.2)
+
+#########################
+# 1) Using declared types
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_DECLTYPES)
+cur = con.cursor()
+cur.execute("create table test(p point)")
+
+cur.execute("insert into test(p) values (?)", (p,))
+cur.execute("select p from test")
+print "with declared types:", cur.fetchone()[0]
+cur.close()
+con.close()
+
+#######################
+# 1) Using column names
+con = sqlite3.connect(":memory:", detect_types=sqlite3.PARSE_COLNAMES)
+cur = con.cursor()
+cur.execute("create table test(p)")
+
+cur.execute("insert into test(p) values (?)", (p,))
+cur.execute('select p as "p [point]" from test')
+print "with column names:", cur.fetchone()[0]
+cur.close()
+con.close()