Re: [Distutils] Telling distutils about requirements

11 Feb 2013


      Not really. Install_requires is a setup tools/distribute feature.
On Feb 11, 2013 2:52 PM, "Erik Bernoth"  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  wrote:
...
Try install_requires = [ the list you have already without () ]
Daniel
On Mon, Feb 11, 2013 at 2:32 PM, Erik Bernoth 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  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 wrote:
...
On Mon, Feb 11, 2013 at 8:07 PM, Daniel Holth wrote:
...
On Mon, Feb 11, 2013 at 1:10 PM, Erik Bernoth  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