[PLUG] Ansible 2.0.2.0 on Debian 8

[JP Vossen <jp@jpsdomain.org>]

This command previously Just Worked for Ansible 2.0.0.2 to 2.0.1.0 and 
all previous Ansible upgrades:
	$ sudo pip install --upgrade ansible

But today it suddenly failed all over the place for Ansible 2.0.2.0 on 
Debian 8.

Long story short:
	$ sudo apt-get install python-dev libffi-dev libssl-dev
	$ pip install --ignore-installed ansible

I might have been able to just do another `sudo pip install --upgrade 
ansible` for that last command, but by then I'd done a whole lot of 
other things thrashing around trying to figure it out, so...

Errors at various times in the process included:
* build/temp.linux-x86_64-2.7/check_libyaml.c:2:18: fatal error: yaml.h: 
No such file or directory
* src/MD2.c:31:20: fatal error: Python.h: No such file or directory
* c/_cffi_backend.c:15:17: fatal error: ffi.h: No such file or directory
* build/temp.linux-x86_64-2.7/_openssl.c:423:30: fatal error: 
openssl/opensslv.h: No such file or directory

It seems to be something about Paramiko changing dependencies, but I 
never found anything that fully answered my problem.  I pieced the above 
together from:
* 
http://www.cyberciti.biz/faq/debian-ubuntu-linux-python-h-file-not-found-error-solution/
* 
http://stackoverflow.com/questions/11596839/installing-pycrypto-on-ubuntu-fatal-error-on-build
* 
https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/ansible-project/dFRlLiUI4PA/qsO3y4czDAAJ
* https://bugs.launchpad.net/congress/+bug/1503095


Note I was upgrading because I usually hit 
https://github.com/ansible/ansible/issues/13876 on at least 1 machine 
per weekend update of only 16 hosts, not a great stat.  A re-run for 
that host works, but I shouldn't have to do that...  I guess I'll see if 
that worked next weekend.

Later,
JP
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