# Python None in Fish
**URL:** https://forum.itascainternational.com/t/python-none-in-fish/966
**Category:** Wish List
**Tags:** python, fish
**Created:** [March 20, 2023, 10:29am UTC](https://forum.itascainternational.com/t/python-none-in-fish/966 "2023-03-20T10:29:00Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Theophile](https://forum.itascainternational.com/u/Theophile)
#### Post date: [March 20, 2023, 10:29am UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/1 "2023-03-20T10:29:00Z")
Hi everyone!
I would have a small request: would it be possible to have a _Fish_ binding to _Python_ `None`?
As of 3DEC v7.00.157, _Python_ `None` converts to _Fish_ vector3 `(0.,0.,0.)` while `(0.,0.,0.)` gives an itasca.vec3 in return.
It would be great to have an actual bijection to avoid troubles when converting back from _Fish_ to _Python_
The closest thing to `None` singleton I could think of is _Fish_ `null` pointer.
To date, trying to get `null` using `itasca.fish.get` raises an error in _Python_.
I am not sure it is easily feasible, or if using `null` is relevant.
Anyway, thanks for your answer!
Regards,
Théophile
---
### Author:  [@Huy](https://forum.itascainternational.com/u/Huy)
#### Post date: [March 27, 2023, 3:55pm UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/2 "2023-03-27T15:55:07Z")
Hi,
There is a bug here.I agree that Python None should convert to a null pointer not vector(0,0,0).
Then you can use exception to get a null pointer. For example
```auto
import itasca as it
try:
x = it.fish.get("x")
except SystemError:
x = None
```
Well, it’s just a hack. We need to fix it .
---
### Author:  [@Theophile](https://forum.itascainternational.com/u/Theophile)
#### Post date: [March 28, 2023, 7:36am UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/3 "2023-03-28T07:36:11Z")
Hi @Huy , thanks for your answer!
The hack does the trick indeed.
An actual binding would be great.
For exemple, we’re working on a module where we link _Python_ functions to _Fish_ functions and a true binding would help having a proper linking.
Anyway, thanks for the hint!
Théophile
---
### Author:  [@Theophile](https://forum.itascainternational.com/u/Theophile)
#### Post date: [March 29, 2024, 3:59pm UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/4 "2024-03-29T15:59:01Z")
Hi @Huy !
By chance, is there any plan to integrate this feature in a next 3DEC update?
Thanks !
Cheers
Théophile
---
### Author:  [@Huy](https://forum.itascainternational.com/u/Huy)
#### Post date: [April 2, 2024, 8:56am UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/5 "2024-04-02T08:56:02Z")
I’ll put in the development list.
---
### Author:  [@Theophile](https://forum.itascainternational.com/u/Theophile)
#### Post date: [April 2, 2024, 1:01pm UTC](https://forum.itascainternational.com/t/python-none-in-fish/966/6 "2024-04-02T13:01:57Z")
Great, thanks a lot!