Add a few python packages

[offlinehacker]

All the changes are nicely enumerated in commit messages.

Please check if update of sqlalchemy introduces any problems.

PS: i would be happy if anybody would tell me how to check if my changes broke some other package.

[domenkozar]

There is some information on wiki how to get a list of affected packages by the change

[cillianderoiste]

https://nixos.org/wiki/Contributing#How_to_verify_that_you_didn.27t_break_a_dependency_or_the_evaluation_by_accident_.3Fshould
help

On Fri, Sep 20, 2013 at 11:17 PM, Domen Kožar [email protected]:

There is some information on wiki how to get a list of affected packages
by the change

—
Reply to this email directly or view it on GitHubhttps://github.com//pull/994#issuecomment-24841896
.

[offlinehacker]

Thanks! I came across this once, but was not able find it ever since.

On Fri, Sep 20, 2013 at 11:28 PM, cillianderoiste
[email protected]:

https://nixos.org/wiki/Contributing#How_to_verify_that_you_didn.27t_break_a_dependency_or_the_evaluation_by_accident_.3Fshould
help

On Fri, Sep 20, 2013 at 11:17 PM, Domen Kožar [email protected]:

There is some information on wiki how to get a list of affected packages
by the change

—
Reply to this email directly or view it on GitHub<
https://github.com/NixOS/nixpkgs/pull/994#issuecomment-24841896>
.

—
Reply to this email directly or view it on GitHubhttps://github.com//pull/994#issuecomment-24842454
.

[garbas]

@offlinehacker could you give a try to pypi2nix and try to add this libs with it? it will make them easier to maintain in the future.

[offlinehacker]

@garbas This are pretty basic libraries and i want to maintain them by hand. I had to put some effort to make all tests run as they should and i want to keep them here, really.

I will be making celery and sentry package and i will use pipy2nix, but i have one fear before using it. No it's not the tests, let's put that asside if you version pick packages mostly you should not have problems if you don't run tests right? and i will disable tests for now until you find some more automatic solution to get testing dependecies.

The problem is that if for example i have django package, that supposedly depends on some pacakage x and i have sentry package that depends on django, where should i override package x. Can i do this in django or i have to do in both? If i can do only in django(so inheritance works), pipy2nix and its syntax is future proven to work and i have no more fears and i will be happy to use pipy2nix.

Besides that, i don't think that solution of generating python stuff is a way to go. But if generator works for some set of packages, let it be, i'm fine with that. Still currently i see pipy2nix only for bigger projects like plone, sentry,... The best would be to have tool that would help maintainer to patch original python-pacakges and this would be completly possible. We could write augeas rules that would modify nix syntax directly, for start you could use just regex expressions and it would work just fine for most packages.

[offlinehacker]

Okay here are rebased commits, tested with my local hydra to make sure nothing broke. It's ready to merge.

I now made two packages sqlalchemy(the old 0.7.10 stable) and sqlalchemy8, because some packages like sqlalchemy_imageattach and ColanderAlchemy require sqlalchemy >= 0.8, but some packages like FlexGet require sqlalchem <=0.8, so now everything works.

[domenkozar]

use underscore, not dash for package names

[domenkozar]

Two small complains, otherwise looks good!

[offlinehacker]

Tnx, fixed!

[garbas]

@offlinehacker

i've been experimenting with overriding on the plane and i think i found the solution where you only define overrides once. so in case packaging of Sentry and Celery you are only going to provide overrides for Django once.

about those those failing tests i would really like to use your piece of code to calculate dependencies and fetched metadata. can you point me again to that code. i'll see if i have time to incorporate it into pypi2nix.

is there anything else that worries you? i would be glad to fix it (if its possible to fix it).

as a result i would like to package all python packages on pypi.python.org (or at least most of them) but that would be done outside hydra.nixos.org ofcourse.