Python check_program_is_installed示例

示例#1

def take_picture():
    if not helpers.check_program_is_installed("fswebcam"):
        return "Is seems you don't have fswebcam installed in your system. Install it using apt-get or aptitude and add your user to VIDEO group."

    command = "fswebcam -r 640x480 -S 3 %s/static/img/webcam_last.jpg" % config.ROOT
    subprocess.call(command, shell=True)
    return "done"

示例#2

def webcam():
    helpers.current_tab("webcam")
    fswebcam_is_installed = helpers.check_program_is_installed("fswebcam")
    return template('webcam', fswebcam_is_installed=fswebcam_is_installed)