[TIP] setup.py: dependency_links = local devpi server

[Donald Stufft]

> On Jan 9, 2015, at 12:31 PM, Tom Viner <tom at viner.tv> wrote:
> 
> Hi all,
> 
> we're using an internal devpi server to host our python packages. We find we have to duplicate all our requirements in our tox.ini which can set "indexserver".
> But we'd like to be able to install locally hosted requirements from a setup.py like this, using dependency_links: 
> 
> from setuptools import setup
> setup(
>     name='dep_links',
>     dependency_links=['http://pypi.local/user/index/+simple/' <http://pypi.local/user/index/+simple/'>],
>     install_requires=[
>         'openpyxl-wrapper',
>     ]
> )
> 
> Our index inherits from the public pypi.
> 
> However we get this error message (Full output <https://gist.github.com/tomviner/e925c2878fba31661446>):
> 
> Installed /home/myuser/.virtualenvs/myvenv/lib/python2.7/site-packages/dep_links-0.0.0-py2.7.egg
> Processing dependencies for dep-links==0.0.0
> Searching for openpyxl-wrapper
> Reading http://pypi.local/user/index/+simple/ <http://pypi.local/user/index/+simple/>
> Reading https://pypi.python.org/simple/openpyxl-wrapper/ <https://pypi.python.org/simple/openpyxl-wrapper/>
> Couldn't find index page for 'openpyxl-wrapper' (maybe misspelled?)
> Scanning index of all packages (this may take a while)
> Reading https://pypi.python.org/simple/ <https://pypi.python.org/simple/>
> No local packages or download links found for openpyxl-wrapper
> error: Could not find suitable distribution for Requirement.parse('openpyxl-wrapper')
> 
> So you can see that our simple index page is reached, but for some reason this link isn't fetched:
> <a href="openpyxl-wrapper">openpyxl-wrapper</a><br/>
> 
> But the package can be installed using:
> pip install -e . -i http://pypi.local/user/index/+simple/
> 
> and the requirement is installed from the devpi server package without any issue.
> 
> So why can setuptools install from public pypi, but not our devpi server?
> 
> Any ideas appreciated!
> 


The —index-url and the —find-links flag do slightly different things, and dependency_links is like —find-links.

The tl;dr is that you can’t put the simple index there, you have to put the page where the actual files can be found at,
so something like:

    dependency_links=[“http://pypi.local/user/index/+simple/openpyxl-wrapper/“] <http://pypi.local/user/index/+simple/openpyxl-wrapper/%E2%80%9C%5D>
---
Donald Stufft
PGP: 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA

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