class FileProxyMixin(object): """ A mixin class used to forward file methods to an underlaying file object. The internal file object has to be called "file":: class FileProxy(FileProxyMixin): def __init__(self, file): self.file = file """ encoding = property(lambda self: self.file.encoding) fileno = property(lambda self: self.file.fileno) flush = property(lambda self: self.file.flush) isatty = property(lambda self: self.file.isatty) newlines = property(lambda self: self.file.newlines) read = property(lambda self: self.file.read) readinto = property(lambda self: self.file.readinto) readline = property(lambda self: self.file.readline) readlines = property(lambda self: self.file.readlines) seek = property(lambda self: self.file.seek) softspace = property(lambda self: self.file.softspace) tell = property(lambda self: self.file.tell) truncate = property(lambda self: self.file.truncate) write = property(lambda self: self.file.write) writelines = property(lambda self: self.file.writelines) xreadlines = property(lambda self: self.file.xreadlines) def __iter__(self): return iter(self.file)