How to access a standard-library module in Python when there is a local module with the same name?

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You are looking for Absolute/Relative imports from PEP 328, available with 2.5 and upward.

In Python 2.5, you can switch import‘s behaviour to absolute imports using a from __future__ import absolute_import directive. This absolute- import behaviour will become the default in a future version (probably Python 2.7). Once absolute imports are the default, import math will always find the standard library’s version. It’s suggested that users should begin using absolute imports as much as possible, so it’s preferable to begin writing from pkg import string in your code.

Relative imports are still possible by adding a leading period to the module name when using the from … import form:

from __future__ import absolute_import
# Import uncertainties.math
from . import math as local_math
import math as sys_math

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