# Allow to replace some standard classes

**URL:** https://discuss.tryton.org/t/allow-to-replace-some-standard-classes/105
**Category:** Feature
**Created:** [April 2, 2016, 5:14pm UTC](https://discuss.tryton.org/t/allow-to-replace-some-standard-classes/105 "2016-04-02T17:14:05Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![JCavallo](https://discuss-cdn.tryton.org/letter_avatar_proxy/v4/letter/j/48db29/32.png) [@JCavallo](https://discuss.tryton.org/u/JCavallo)
#### Post date: [April 4, 2016, 9:13am UTC](https://discuss.tryton.org/t/allow-to-replace-some-standard-classes/105/3 "2016-04-04T09:13:28Z")

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I was wondering if it would be possible to add a similar behaviour for trytond.pool.Pool

I had to do this :

> <https://github.com/coopengo/trytond/commit/e68b71fa0f4b8426d6353461098cba8043c04ff2>

because I wanted in a module to run some validation code once the pool was fully loaded.

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