Add interface for Peter Norvig's BASIC.py

runBASIC.py

@@ -0,0 +1,13 @@
+# An interface to Peter Norvig's BASIC interpreter.
+import BASIC,argparse,os.path
+
+parser = argparse.ArgumentParser(prog="python runBASIC.py",description="An interface to Peter Norvig's BASIC interpreter.")
+parser.add_argument("program",help="Program to run.")
+args = parser.parse_args()
+progpath = os.path.expanduser(args.program)
+
+if not os.path.exists(progpath):
+	parser.error("file {} does not exist".format(args.program))
+
+with open(progpath) as f:
+	BASIC.run(f.read())