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import os.path
import importlib
import inspect
class Data:
def __init__(self, name):
self.name = name
m = importlib.import_module(name)
dirname = os.path.dirname(inspect.getsourcefile(m))
self.dirname = os.path.abspath(dirname)
def push(self, subpath):
"""
Change the data object to a path relative to the module.
"""
dirname = os.path.normpath(os.path.join(self.dirname, subpath))
ret = Data(self.name)
ret.dirname = dirname
return ret
def path(self, path):
"""
Returns a path to the package data housed at 'path' under this
module.Path can be a path to a file, or to a directory.
This function will raise ValueError if the path does not exist.
"""
fullpath = os.path.normpath(os.path.join(self.dirname, path))
if not os.path.exists(fullpath):
raise ValueError("dataPath: %s does not exist." % fullpath)
return fullpath
pkg_data = Data(__name__).push("..")
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