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should I add it there before launching pex?

you’ll ahve to do something to get the interpreter to see them

er, it’s in sys.path in the outer interpreter because the wrapper script takes care of doing that

I’ll try extending PYTHONPATH at that point and see if it helps

the other thing w/ wheels is that technically they need to be ‘installed'

just adding them to the path ~usually works, but is technically incorrect

I think wheel itself is the only place that will need this kind of hack

you know what? I didn’t break anything.  pyyaml just doesn’t work with bdist_wheel and isn’t going to no matter what I do to PYTHONPATH.

and I guess pex has no way of detecting that?

```$ pex pyyaml
Python 2.7.10 (default, Dec 16 2015, 14:09:45)
[GCC 4.2.1 Compatible Apple LLVM 7.0.2 (clang-700.1.81)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
&gt;&gt;&gt; import yaml
&gt;&gt;&gt; yaml.__file__
'/private/var/folders/3t/xkwqrkld4xxgklk2s4n41jb80000gn/T/tmpfv6oUY/.deps/PyYAML-3.11-cp27-cp27m-macosx_10_4_x86_64.whl/yaml/__init__.py’
```

anyway here’s the point where it fails: `pex.resolver.Untranslateable: Package SourcePackage(u'<https://pypi.python.org/packages/00/17/3b822893a1789a025d3f676a381338516a8f65e686d915b0834ecc9b4979/PyYAML-3.10.tar.gz#md5=74c94a383886519e9e7b3dd1ee540247>') is not translateable by ChainedTranslator(WheelTranslator, EggTranslator, SourceTranslator)`

still trying to figure out why it doesn’t appear to be trying EggTranslator and SourceTranslator after that wheel build doesn’t work

wishes python packaging and distribution were waayyyyyyyy less complicated

it appears that you have to jump through some flaming hoops to build wheels for pyyaml :neutral_face:

viz <https://github.com/MacPython/pyyaml-wheels/blob/master/.travis.yml>

odd, vanilla `pex` seems to do it lickety split w/o issue (see above snippit) - and doesn’t seem to be pulling wheels from pypi.

does that work even if you don’t have a cached version in ~/.pex?

though, that cached version would have had to get there somehow to begin with

-.txt

<@U054MQUPL|kwlzn> uploaded a file: <https://pantsbuild.slack.com/files/kwlzn/F1PC62Z6X/-.txt|Untitled>

```&gt;&gt;&gt; import yaml
&gt;&gt;&gt; yaml.__file__
'/private/var/folders/3t/xkwqrkld4xxgklk2s4n41jb80000gn/T/tmp7SLU3F/.deps/PyYAML-3.11-cp27-cp27m-macosx_10_4_x86_64.whl/yaml/__init__.py’```

ok, so it clearly can be done :slightly_smiling_face: