```
I think I must save my party and my address before adding address on the contact.
Today I instanciante a party, I add a new address on this party, I add a new contact on this party. I get both an adress variable with the new method : address = party.adresses.new(postal\_code=‘XXXXX’) and contact = party.contact\_mechanisms.new(type=‘phone’, value=‘+33XXXXX’).
I add this address on contact.address.
I will change my code for save both party and address, get the party, iterate on addresses and add contact for each.
Thank you for your help.
Johan
---
### Author:  [@dotbit](https://discuss.tryton.org/u/dotbit)
#### Post date: [March 1, 2023, 1:50pm UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/9 "2023-03-01T13:50:36Z")
Yes, save first, then assign. It is the same in the gtk client, you can not assign the address to the contact mechanism if the address is not already saved.
> > > party.contact\_mechanisms[0].address = party.addresses[0]
> > > party.save()
This works for me.
You can also try code in an interactive python interpreter, that way you can test things much faster and instantly see what works and what does not.
---
### Author:  [@udono](https://discuss.tryton.org/u/udono)
#### Post date: [March 1, 2023, 2:44pm UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/10 "2023-03-01T14:44:05Z")
> [@dotbit](#):
>
> You can also try code in an interactive python interpreter
… or use the `trytond-console`.
---
### Author:  [@nicoe](https://discuss.tryton.org/u/nicoe)
#### Post date: [March 1, 2023, 3:46pm UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/11 "2023-03-01T15:46:45Z")
Indeed it’s another way to import data.
But beware that in this case it’s not a proteus session but it’s just like if you were “inside” trytond.
So the API is different.
---
### Author:  [@jcros](https://discuss.tryton.org/u/jcros)
#### Post date: [March 2, 2023, 6:49am UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/12 "2023-03-02T06:49:36Z")
Hello all,
Thank you, i can add contact to an address now 🙂
I’ll optimise my migration script.
I think last question, how i can catch properly exception on party.save() ?
Example : bad format for a telephone number
Thank you
Johan
---
### Author:  [@lars\_wuerfel](https://discuss.tryton.org/u/lars_wuerfel)
#### Post date: [March 2, 2023, 8:28am UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/13 "2023-03-02T08:28:34Z")
> [@jcros](#):
>
> I think last question, how i can catch properly exception on party.save() ?
> Example : bad format for a telephone number
I also had the problem with bad phone number formats on migration, and I did not want to correct them all before the migration, but later.
I uninstalled python module “phonenumbers” within the tryton server environment,
> pip uninstall phonenumbers
did the migration, and then reinstalled
> pip install phonenumbers
So I could do the migration and then correct the data step by step later.
---
### Author:  [@acaubet](https://discuss.tryton.org/u/acaubet)
#### Post date: [March 2, 2023, 9:12am UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/14 "2023-03-02T09:12:38Z")
> [@jcros](#):
>
> I think last question, how i can catch properly exception on party.save() ?
> Example : bad format for a telephone number
You can catch the exception with:
```auto
try:
phonenumber = phonenumbers.parse(mechanism.value)
except NumberParseException:
```
and also `phonenumbers.is_valid_number(phonenumber)`
> [@lars\_wuerfel](#):
>
> So I could do the migration and then correct the data step by step later.
If it’s not a valid one, we like to set the mechanism to `other` instead of using `phone`, so latter it can be corrected.
---
### Author:  [@lars\_wuerfel](https://discuss.tryton.org/u/lars_wuerfel)
#### Post date: [March 2, 2023, 9:23am UTC](https://discuss.tryton.org/t/add-parties-addresses-contacts-with-proteus/5988/15 "2023-03-02T09:23:38Z")
> [@acaubet](#):
>
> > [@lars\_wuerfel](#):
> >
> > So I could do the migration and then correct the data step by step later.
>
> If it’s not a valid one, we like to set the mechanism to `other` instead of using `phone`, so latter it can be corrected.
Indeed this is a great solution, thanks, I will do so in the future.