# Copyright 2013 Daniel Narvaez
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import sys
import os
import tty
import termios

devnull = open("/dev/null", "w")
def ensure_dir(path):
    try:
        os.makedirs(path)
    except OSError:
        pass


def getch():
    fd = sys.stdin.fileno()
    tty_attributes = termios.tcgetattr(fd)

    try:
        tty.setraw(fd)
        return sys.stdin.read(1)
    finally:
        termios.tcsetattr(fd, termios.TCSADRAIN, tty_attributes)