def blankout(src, char):
    return dot_re.sub(char, src)
Check if the required command line apps exist.
dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/utils/translation/trans_real.py/blankout--crossover with--dataset/ETHPy150Open Kilian/Trimage/src/trimage/trimage.py/StartQT4.checkapps