Travis is not finding pandas installed by conda

Question

It looks like conda changed the default versions it looks for today, because `conda install numpy scipy` does not currently work: ``` $conda create numpy scipy -n test-build-issue3 --dry-run Error: Unsatisfiable package specifications Hint: the following combinations of packages create a conflict with the remaining packages: - numpy 1.7* - scipy ``` If I give specific versions, I can set up a working environment locally. ``` conda create numpy=1.7.1 scipy=0.13.0 pandas=0.13.0 matplotlib=1.3 PIL -n test-build --dry-run ``` But on Travis, while conda reports having installed and linked pandas, the test suite raises an ImportError: ``` $ nosetests --nologcapture -a '!slow' E (...) ImportError: No module named pandas ``` One example of a complete failed build is here. The test suite was passing fine yesterday. I have lots of experience with Travis but less experience running and debugging conda on it. Any suggestions?

Accepted Answer

Thanks for the folks over at the anaconda mailing list, this is resolved.

Today, ContinuumIO updated conda, but not miniconda, and this was the cause of my woes. To protect oneself from this situation, add this line to before-install:

```
- conda update --yes conda
```

Travis is not finding pandas installed by conda

Solution

Problem