[Distutils] Telling distutils about requirements

[Nick Coghlan]

On 12 Feb 2013 06:41, "Erik Bernoth" <erik.bernoth at gmail.com> wrote:
>
> Sorry, I didn't know that this is not part of distutils. In my
understanding pip, setup.py and so on is all part of distutils. Should I
have asked my question on another mailing list? Then even more thanks for
the great help!

Don't worry, this is the right list, there are just multiple projects based
on the core distutils that also use it.

Regards,
Nick.

>
>
> On Mon, Feb 11, 2013 at 8:55 PM, Daniel Holth <dholth at gmail.com> wrote:
>>
>> Not really. Install_requires is a setup tools/distribute feature.
>>
>> On Feb 11, 2013 2:52 PM, "Erik Bernoth" <erik.bernoth at gmail.com> wrote:
>>>
>>> Yes, now it works! Thanks a lot! Last but not least, could you point me
in the correct direction to add a patch for the distutils documentation,
explaining this more clearly?
>>>
>>>
>>> On Mon, Feb 11, 2013 at 8:34 PM, Daniel Holth <dholth at gmail.com> wrote:
>>>>
>>>> Try install_requires = [ the list you have already without () ]
>>>>
>>>> Daniel
>>>>
>>>>
>>>> On Mon, Feb 11, 2013 at 2:32 PM, Erik Bernoth <erik.bernoth at gmail.com>
wrote:
>>>>>
>>>>> I basically follow the tutorial in the distutils docs, which is a
little unclear to me in some points.
>>>>>
>>>>> If I do as you say it looks like this:
>>>>> --------------------------------------------------------------
>>>>>   [...]
>>>>>     package_dir = { '' : src_path },
>>>>>     requires = [
>>>>>         'pylibssh2==1.0.1',
>>>>>         'pyserial==2.5'
>>>>>     ],provides = [
>>>>>         '{} ({})'.format(project, version)
>>>>>     ]
>>>>>   [...]
>>>>> --------------------------------------------------------------
>>>>> And the result of ``$ python setup.py sdist`` is:
>>>>>
>>>>>     [...] # exception stack
>>>>>     ValueError: expected parenthesized list: '==1.0.1'
>>>>>
>>>>> That also happens if I add spaces between project name and comparator.
>>>>>
>>>>>
>>>>> On Mon, Feb 11, 2013 at 8:24 PM, Daniel Holth <dholth at gmail.com>
wrote:
>>>>>>
>>>>>> This is a common mistake. The parenthesis are a Metadata 1.2+ thing.
Omit them for distutils.
>>>>>>
>>>>>>
>>>>>> On Mon, Feb 11, 2013 at 2:22 PM, Erik Bernoth <erik.bernoth at gmail.com>
wrote:
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Feb 11, 2013 at 8:07 PM, Daniel Holth <dholth at gmail.com>
wrote:
>>>>>>>>
>>>>>>>> On Mon, Feb 11, 2013 at 1:10 PM, Erik Bernoth <
erik.bernoth at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>> Hi everybody,
>>>>>>>>>
>>>>>>>>> I think I pretty much read all of the
http://docs.python.org/2/distutils/ and started to create a pypi repository
for my project (http://pypi.python.org/pypi/monk_tf). Now there are some
things that are not so clear from the documentation, with the most
important being requirement handling.
>>>>>>>>>
>>>>>>>>> I have the same requirements written down in two ways:
>>>>>>>>>  a) a requirements.txt file, which can be called with pip install
-r requirements.txt. Yet I don't see any user downloading a
requirements.txt file from somewhere, then installing it and only then
afterwards getting started with actually installing the package they want
to install. Who would do that?
>>>>>>>>>
>>>>>>>>>  b) requires attribute in the setup function call in setup.py.
For some reason pip completely seems to ignore it. I tested the following
way (come along with the code from https://github.com/DFE/MONK, if you
like):
>>>>>>>>>
>>>>>>>>>     $ cd MONK
>>>>>>>>>     $ python setup.py sdist
>>>>>>>>>     $ cd dist
>>>>>>>>>     $ tar xfvz monk_tf-v0.1.1.tar.gz
>>>>>>>>>     $ cd monk_tf-v0.1.1
>>>>>>>>>     $ python setup.py install
>>>>>>>>>     running install
>>>>>>>>>     running build
>>>>>>>>>     running build_py
>>>>>>>>>     running install_lib
>>>>>>>>>     running install_egg_info
>>>>>>>>>     Writing
/usr/local/lib/python2.7/dist-packages/monk_tf-v0.1.1.egg-info
>>>>>>>>>     $python
>>>>>>>>>     >> import monk_tf
>>>>>>>>>     (Exception, because a required package can't be found)
>>>>>>>>>
>>>>>>>>> So this also didn't seem to install any of the required packages.
>>>>>>>>>
>>>>>>>>> I'd really like to know, what I am doing wrong here. Anybody
ideas or suggestions? Is there another way to tell distutils about the
packages that should be installed before my package is installed?
>>>>>>>>>
>>>>>>>>> Cheers
>>>>>>>>> Erik
>>>>>>>>
>>>>>>>>
>>>>>>>> Generally requires.txt is for specific versions of dependencies
and the setup.py list is more permissive.
>>>>>>>>
>>>>>>>> Try using pip to install your sdist instead of running setup.py
directly.
>>>>>>>>
>>>>>>>
>>>>>>> Hi Daniel,
>>>>>>>
>>>>>>> I also tried ``pip install monk_tf-v0.1.1.tar.gz``, with the same
result as using setup.py directly. He installs it but doesn't consider the
"requires" list.
>>>>>>> From your mail I would interprete that distutils actually should
consider the required packages? Maybe I just wrote something incorrectly.
>>>>>>> Does the following look like a correct statements of the requires
parameter?
>>>>>>> --------------------------------------------------------------
>>>>>>>   [...]
>>>>>>>     package_dir = { '' : src_path },
>>>>>>>     requires = [
>>>>>>>         'pylibssh2 (==1.0.1)',
>>>>>>>         'pyserial (==2.5)'
>>>>>>>     ],provides = [
>>>>>>>         '{} ({})'.format(project, version)
>>>>>>>     ]
>>>>>>>   [...]
>>>>>>> --------------------------------------------------------------
>>>>>>>
>>>>>>> Cheers
>>>>>>> Erik
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>
>
> _______________________________________________
> Distutils-SIG maillist  -  Distutils-SIG at python.org
> http://mail.python.org/mailman/listinfo/distutils-sig
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/distutils-sig/attachments/20130212/e016b654/attachment-0001.html>