Merge pull request #15 from pythonleo/master

calc, explorer bg

Author: SourceDevKev

calc.py

@@ -0,0 +1,11 @@
+# Our "scriptable calculator"
+# Calculates an expression
+# Enter q to quit
+
+from math import *
+
+def calc(working_dir, *args):    # arguments are completely unused
+	expr = input()
+	while expr != 'q':
+		print(eval(expr))
+		expr = input()