First import

git-svn-id: http://photonzero.com/dotfiles/trunk@1 23f722f6-122a-0410-8cef-c75bd312dd78

bin/contract

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+#!/usr/bin/python
+
+import sys
+
+loadfile = sys.stdin
+
+if len(sys.argv) == 1:
+	print "No command to run"
+	sys.exit(1)
+
+if len(sys.argv) == 3:
+	if sys.argv[2] != "-":
+		loadfile = open(sys.argv[2])
+
+def add(x, y):
+	return x + y
+
+def sub(x, y):
+	return x - y
+
+def mult(x, y):
+	return x * y
+
+def div(x,y):
+	return x / y;
+
+lis = []
+for line in loadfile:
+	if line.strip() <> "":
+		x = float(line)
+		lis.append(x)
+
+print reduce(eval(sys.argv[1]), lis)
+