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"""

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Misc definitions

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"""

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import os,sys

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# helper func to get path to images

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def opjimg(imgname):

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    return os.path.join(sys.path[0], "images",imgname)

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# helper func to check path write permission

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def CheckPathPerm(path):

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    if path is None or not os.path.isdir(path):

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        return False

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    for root, dirs, files in os.walk(path):

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         for name in files:

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             if os.access(root, os.W_OK) is not True or os.access(os.path.join(root, name), os.W_OK) is not True:

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                 return False

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    return True

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def GetClassImporter(classpath):

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    if type(classpath)==str:

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        def fac():

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            mod=__import__(classpath.rsplit('.',1)[0])

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            return reduce(getattr, classpath.split('.')[1:], mod)

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        return fac

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    else:

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        return lambda:classpath

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