Name Mangling Of Python Private Variables

gistfile1.sc

def _mangle_name(self, name):
    """
    Any identifier of the form __spam (at least two leading underscores,
    at most one trailing underscore) is textually replaced with
    _classname__spam, where classname is the current class name with
    leading underscore(s) stripped.

    Truncation may occur when the mangled name would be longer than
    255 characters. When the class name consists of only underscores,
    no mangling occurs.
    """

    klass = self.__class__.__name__
    if name.startswith("__") and not name.endswith("__"):
        import re
        if not re.compile(r"^_+$").match(klass):
            # NOTE: In Python 2.5, no trunction occurred?
            #name = ("_%s%s" % (klass, name))[0:255]
            name = ("_%s%s" % (klass, name))
    return name