reopen fds

reopen.py

import os, sys
sys.stdin.close()
sys.stdout.close()
sys.stderr.close()
os.close(0)
os.close(1)
os.close(2)

sys.stdin = open('/dev/null', 'r')
sys.stdout = open('/dev/null', 'w')
sys.stderr = open('/dev/null', 'w')

import kivy
kivy.require('1.8.1')

from kivy.app import App
from kivy.lang import Builder

root = Builder.load_string('''
BoxLayout:
    Label:
        text: 'hi'
''')

class TestApp(App):
    def build(self):
        return root

if __name__ == '__main__':
    TestApp().run()