Re: [PATCH] gnu: Add python-psycopg2, python2-psycopg2

[Leo Famulari <leo@famulari.name>]

On Fri, Feb 19, 2016 at 12:01:06PM +0100, Danny Milosavljevic wrote:
> diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm

Thanks for the patch!

Unfortunately, python.scm has changed since you made the patch, so the
patch no longer applies. Can you rebase on the current master and
regenerate the patch, incorporating the changes suggest below?

The commit message should include a line describing the changes.  You
can find some examples of the desired format in the git log.

And don't forget to add your name to the list of authors at the top of
the file :)

> index 3dd3862..f121d27 100644
> --- a/gnu/packages/python.scm
> +++ b/gnu/packages/python.scm
> @@ -7529,3 +7529,32 @@ available in Django, but is a standalone package.")
>      (inherit (package-with-python2
>                (strip-python2-variant python-wtforms)))
>      (inputs `(("python2-setuptools" ,python2-setuptools)))))
> +
> +(define-public python-psycopg2
> +  (package
> +    (name "python-psycopg2")
> +    (version "2.6.1")
> +    (source
> +     (origin
> +       (method url-fetch)
> +       (uri (pypi-uri "psycopg2" version ".tar.gz"))

".tar.gz" is the default pypi-uri extension, so you can leave it out.

> +       (sha256
> +        (base32
> +         "0k4hshvrwsh8yagydyxgmd0pjm29lwdxkngcq9fzfzkmpsxrmkva"))))
> +    (build-system python-build-system)
> +    (arguments
> +     `(#:tests? #f)) ; TODO re-enable

Why are the tests disabled?

> +    (inputs
> +     `(("postgresql" ,postgresql))) ; libpq
> +    (home-page "http://initd.org/psycopg/")
> +    (synopsis "Python PostgreSQL adapter")
> +    (description
> +     "psycopg2 is a PostgreSQL adapter that implements DB-API 2.0")

The description should be a complete sentence, with a period at the end.
Bonus points for more detail :)

> +    (license lgpl3+)
> +    (properties `((python2-variant . ,(delay python2-psycopg2))))))
> +
> +(define-public python2-psycopg2
> +  (package
> +    (inherit (package-with-python2
> +              (strip-python2-variant python-psycopg2)))
> +    (inputs `(("python2-setuptools" ,python2-setuptools)))))

Setuptools is typically used only at build time, so it should be a
native input.