Merge in D'Arcy Cain's python interface (PyGreSQL 2.0)

src/interfaces/python/tutorial/pgtools.py

@@ -0,0 +1,47 @@
+#! /usr/local/bin/python
+# pgtools.py - valuable functions for PostGreSQL tutorial
+# written 1995 by Pascal ANDRE
+
+import sys
+
+# number of rows 
+scr_size = 24
+
+# waits for a key
+def wait_key():
+	print "Press <enter>"
+	sys.stdin.read(1)
+	
+# displays a table for a select query result
+def display(fields, result):
+	# gets cols width
+	fmt = []
+	sep = '+'
+	head = '|'
+	for i in range(0, len(fields)):
+		max = len(fields[i])
+		for j in range(0, len(result)):
+			if i < len(result[j]):
+				if len(result[j][i]) > max:
+					max = len(result[j][i])
+		fmt.append(" %%%ds |" % max)
+		for j in range(0, max):
+			sep = sep + '-'
+		sep = sep + '--+'
+	for i in range(0, len(fields)):
+		head = head + fmt[i] % fields[i]
+	print sep + '\n' + head + '\n' + sep
+	pos = 6
+	for i in range(0, len(result)):
+		str = '|'
+		for j in range(0, len(result[i])):
+			str = str + fmt[j] % result[i][j]
+		print str
+		pos = pos + 1
+		if pos == scr_size:
+			print sep
+			wait_key()
+			print sep + '\n' + head + '\n' + sep
+			pos = 6
+	print sep
+	wait_key()