import time
import sys
import inspect
import runpy
import os

class NullDevice():
    def write(self, s):
        pass

class Tracer(object):
    def __init__(self):
        self.run_info = {}

    def tracefunc(self, frame, event, arg):
        filename = inspect.getfile(frame)
        line = frame.f_lineno

        if filename not in self.run_info:
            self.run_info[filename] = {}
        if line not in self.run_info[filename]:
            self.run_info[filename][line] = {}

        for k, v in frame.f_locals.iteritems():
            self.run_info[filename][line][k] = v

        return self.tracefunc

    def set_trace(self):
        sys.settrace(self.tracefunc)

    def uninstall_trace(self):
        sys.settrace(None)

filename = sys.argv[1]
start_time = os.stat(filename).st_mtime
orginal_stdout = sys.stdout

while(True):
    if(os.stat(filename).st_mtime > start_time):
        t = Tracer()

        t.set_trace()
        sys.stdout = NullDevice()
        execfile(filename, {}, {})
        t.uninstall_trace()

        sys.stdout = orginal_stdout
        print t.run_info[filename]
        start_time = os.stat(filename).st_mtime
    else:
        time.sleep(1)