cli.py 文件源码

def checkdependencies():
    "only returns if everything looks ok"
    msgs = []

    #make sure this looks like the right directory
    if not os.path.isdir(CODEDIR):
        msgs.append('Cannot locate SolarWolf modules')
    if not os.path.isdir('data'):
        msgs.append('Cannot locate SolarWolf data files')

    #first, we need python >= 2.1
    if int(sys.version[0]) < 2:
        errorbox('Requires Python-2.1 or Greater')

    #is correct pygame found?
    try:
        import pygame
        if pygame.ver < '1.5.6':
            msgs.append('Requires Pygame-1.5.6 or Greater, You Have ' + pygame.ver)
    except ImportError:
        msgs.append("Cannot import Pygame, install version 1.5.6 or higher")
        pygame = None

    #check that we have FONT and IMAGE
    if pygame:
        if not pygame.font:
            msgs.append('Pygame requires the SDL_ttf library, not available')
        if not pygame.image or not pygame.image.get_extended():
            msgs.append('Pygame requires the SDL_image library, not available')

    if msgs:
        msg = '\n'.join(msgs)
        errorbox(msg)



#Pretty Error Handling Code...