xotl.tools.future.types - Names for built-in types and extensions

This module extends the standard library’s functools. You may use it as a drop-in replacement in many cases.

Avoid importing * from this module since could be different in Python 2.7 and Python 3.3.

We added mainly compatibility type definitions, those that each one could be in one version and not in other.

class xotl.tools.future.types.MappingProxyType

New in version 1.5.5.

Read-only proxy of a mapping. It provides a dynamic view on the mapping’s entries, which means that when the mapping changes, the view reflects these changes.

Note

In Python 3.3+ this is an alias for types.MappingProxyType in the standard library.

class xotl.tools.future.types.SimpleNamespace

New in version 1.5.5.

A simple object subclass that provides attribute access to its namespace, as well as a meaningful repr.

Unlike object, with SimpleNamespace you can add and remove attributes. If a SimpleNamespace object is initialized with keyword arguments, those are directly added to the underlying namespace.

The type is roughly equivalent to the following code:

class SimpleNamespace(object):
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)
    def __repr__(self):
        keys = sorted(self.__dict__)
        items = ("{}={!r}".format(k, self.__dict__[k]) for k in keys)
        return "{}({})".format(type(self).__name__, ", ".join(items))
    def __eq__(self, other):
        return self.__dict__ == other.__dict__

SimpleNamespace may be useful as a replacement for class NS: pass. However, for a structured record type use namedtuple() instead.

Note

In Python 3.4+ this is an alias to types.SimpleNamespace.