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Python regex find all overlapping matches?

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I'm trying to find every 10 digit series of numbers within a larger series of numbers using re in Python 2.6.

I'm easily able to grab no overlapping matches, but I want every match in the number series. Eg.

in "123456789123456789"

I should get the following list:

[**********,**********,**********,**********,**********,**********,**********,**********,**********]

I've found references to a "lookahead", but the examples I've seen only show pairs of numbers rather than larger groupings and I haven't been able to convert them beyond the two digits.

posted Sep 10 by Jainsaniya
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avinash@dell ~ $ sudo pip install django-tracking

Downloading/unpacking django-tracking
Downloading django-tracking-0.4.1.tar.gz (1.9MB): 1.9MB downloaded
Running setup.py (path:/tmp/pip_build_root/django-tracking/setup.py) egg_info for package django-tracking
Traceback (most recent call last):
File "", line 17, in
File "/tmp/pip_build_root/django-tracking/setup.py", line 6, in
import tracking
File "tracking/__init__.py", line 1, in
import listeners
File "tracking/listeners.py", line 6, in
from django.core.cache import cache
File "/usr/local/lib/python2.7/dist-packages/django/core/cache/__init__.py", line 34, in
if DEFAULT_CACHE_ALIAS not in settings.CACHES:
File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 46, in __getattr__
self._setup(name)
File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 40, in _setup
% (desc, ENVIRONMENT_VARIABLE))
django.core.exceptions.ImproperlyConfigured: Requested setting CACHES, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.
Complete output from command python setup.py egg_info:
Traceback (most recent call last):

File "", line 17, in

File "/tmp/pip_build_root/django-tracking/setup.py", line 6, in

import tracking

File "tracking/__init__.py", line 1, in

import listeners

File "tracking/listeners.py", line 6, in

from django.core.cache import cache

File "/usr/local/lib/python2.7/dist-packages/django/core/cache/__init__.py", line 34, in

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File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 46, in __getattr__

self._setup(name)

File "/usr/local/lib/python2.7/dist-packages/django/conf/__init__.py", line 40, in _setup

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django.core.exceptions.ImproperlyConfigured: Requested setting CACHES, but settings are not configured. You must either define the environment variable DJANGO_SETTINGS_MODULE or call settings.configure() before accessing settings.

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