38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
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import importlib
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import inspect
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import os.path
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class Data:
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def __init__(self, name):
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self.name = name
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m = importlib.import_module(name)
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f = inspect.getsourcefile(m)
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assert f is not None
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dirname = os.path.dirname(f)
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self.dirname = os.path.abspath(dirname)
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def push(self, subpath):
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"""
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Change the data object to a path relative to the module.
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"""
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dirname = os.path.normpath(os.path.join(self.dirname, subpath))
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ret = Data(self.name)
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ret.dirname = dirname
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return ret
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def path(self, path):
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"""
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Returns a path to the package data housed at 'path' under this
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module.Path can be a path to a file, or to a directory.
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This function will raise ValueError if the path does not exist.
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"""
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fullpath = os.path.normpath(os.path.join(self.dirname, path))
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if not os.path.exists(fullpath):
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raise ValueError("dataPath: %s does not exist." % fullpath)
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return fullpath
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pkg_data = Data(__name__).push("..")
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