BLD: Updated numpy to 1.7.2

[cpelley]

Updated numpy to 1.7.2 in travis using the pypi package. Unofficial ppa available which is at v1.7.0b2 results in errors (don't want to hold up the release for this).

[cpelley]

Issues with numpy 1.7.0b2 which are not present in 1.7.0
ValueError: negative dimensions are not allowed

[bblay]

Let's go with pip for now, so we can continue with the 1.6.x release process.
If we later find it causes Travis timeouts, we can disable the doctests in panic while we address it.

[cpelley]

Done, cheers @bblay

[bblay]

Please resubmit, I can't restart.

$ ./.travis_no_output wget -O iris-test-data.zip https://github.com/SciTools/iris-test-data/archive/${IRIS_TEST_DATA_REF}.zip
Failed (exit code 8)
--2014-01-22 15:36:57-- https://github.com/SciTools/iris-test-data/archive/3378fe68c00ca7f31895ab6630a59a39ccef94e3.zip
Resolving github.com (github.com)... 192.30.252.129
Connecting to github.com (github.com)|192.30.252.129|:443... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://codeload.github.com/SciTools/iris-test-data/zip/3378fe68c00ca7f31895ab6630a59a39ccef94e3 [following]
--2014-01-22 15:37:02-- https://codeload.github.com/SciTools/iris-test-data/zip/3378fe68c00ca7f31895ab6630a59a39ccef94e3
Resolving codeload.github.com (codeload.github.com)... 192.30.252.147
Connecting to codeload.github.com (codeload.github.com)|192.30.252.147|:443... connected.
HTTP request sent, awaiting response... 500 Internal Server Error
2014-01-22 15:37:26 ERROR 500: Internal Server Error.
The command "./.travis_no_output wget -O iris-test-data.zip https://github.com/SciTools/iris-test-data/archive/${IRIS_TEST_DATA_REF}.zip" failed and exited with 8 during install.
Your build has been stopped.

[cpelley]

Thanks for checking up on this for me @bblay

[cpelley]

I have just pushed back up

[bblay]

Two doctest failures that you havene/t touched...

/home/travis/build/SciTools/iris/docs/iris/src/whatsnew/1.5.rst:121: ERROR: Unexpected indentation.
/home/travis/.local/lib/python2.7/site-packages/iris/unit.py:docstring of iris.unit.Unit:14: ERROR: Unexpected indentation.

I can't copy/paste the summary as travis won't let me get to the bottom of the page...

Seems perverse to ask you to fix these 2 errors but I see no other reasonable option.

[cpelley]

Looks is a doc bug and the other looks like a change in behaviour with numpy where a repr of a numpy array containing a datetime object used to call its str but now it correctly calls its repr.

[cpelley]

Also fixes a few doc bugs.

[cpelley]

These changes will mean that some doctests will fail in future if running them with numpy <v1.7.0

[cpelley]

Just checking whether the -I arg. in the pip install is necessary

[bjlittle]

@cpelley the -I ignores the already installed NumPy package ... is this the right way to nail down the version? Do we need to do this due to the apt-get of python-scipy and its pre-bundled version of NumPy?

Can you please justify the -I usage and at the very least add a comment for those that follow?

[cpelley]

Confirmed that -I argument is not required for the pip install. I think this is specifically for previous pip installs of packages rather than any kind of interaction with existing system packages.

[bjlittle]

tsk tsk ... @cpelley I assume you're going to push the change into code-generators?

[cpelley]

:)
https://github.com/SciTools/iris-code-generators/pull/33
I have done a diff between the one generated and the one that is in this PR, and they are identical.

[bjlittle]

Excellent @cpelley 👍, thanks!

[bblay]

Thanks @cpelley