Ubuntu 12.04.2 install: missing event.h and fails unless installed to /usr/plivo

[Matt Williams]

Hi,

 

I've previously installed FreeSWITCH and Plivo successfully on Ubuntu 12.04.2 using the instructions at http://docs.plivo.org/get-started/.  However, I tried following these instructions again a few days ago and hit 2 problems.  I suspect that some Ubuntu packages or Python eggs have been updated and this has caused the problems to be exposed.

 

 

1) Missing event.h

 

The first problem is that the install fails due to gevent failing to build because event.h is missing.

 

Installing collected packages: gevent, greenlet

  Running setup.py install for gevent

    building 'gevent.core' extension

    gcc -pthread -fno-strict-aliasing -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fPIC -I/usr/include/python2.7 -c gevent/core.c -o build/temp.linux-x86_64-2.7/gevent/core.o

    In file included from gevent/core.c:253:0:

    gevent/libevent.h:9:19: fatal error: event.h: No such file or directory

    compilation terminated.

    error: command 'gcc' failed with exit status 1

 

event.h is part of libevent-dev, so installing this with "apt-get install libevent-dev" or adding it to the list of packages at plivo_install.sh;81 fixes this.

 

 

2) Install to /usr/local/plivo fails

 

After fixing this, I still see the following error.

 

Installing collected packages: plivo, flask, ujson, redis, Werkzeug, Jinja2, markupsafe

  Running setup.py develop for plivo

    error: None

    Complete output from command /usr/local/plivo/bin/python -c "import setuptools; __file__='/usr/local/plivo/src/plivo/setup.py'; exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" develop --no-deps:

    running develop

 

error: None

 

Running "DISTUTILS_DEBUG=1 /usr/local/plivo/bin/python -c "import setuptools; __file__='/usr/local/plivo/src/plivo/setup.py'; exec(compile(open(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" develop --no-deps" gives more information on the failure.

 

Traceback (most recent call last):

  File "<string>", line 1, in <module>

  File "/usr/local/plivo/src/plivo/setup.py", line 71, in <module>

    setup(**setup_args)

  File "/usr/lib/python2.7/distutils/core.py", line 152, in setup

    dist.run_commands()

  File "/usr/lib/python2.7/distutils/dist.py", line 953, in run_commands

    self.run_command(cmd)

  File "/usr/lib/python2.7/distutils/dist.py", line 971, in run_command

    cmd_obj.ensure_finalized()

  File "/usr/lib/python2.7/distutils/cmd.py", line 109, in ensure_finalized

    self.finalize_options()

  File "/usr/local/plivo/local/lib/python2.7/site-packages/setuptools/command/develop.py", line 51, in finalize_options

    easy_install.finalize_options(self)

  File "/usr/local/plivo/local/lib/python2.7/site-packages/setuptools/command/easy_install.py", line 227, in finalize_options

    prefix, exec_prefix = get_config_vars('prefix', 'exec_prefix')

  File "/usr/lib/python2.7/sysconfig.py", line 476, in get_config_vars

    _init_posix(_CONFIG_VARS)

  File "/usr/lib/python2.7/sysconfig.py", line 344, in _init_posix

    raise IOError(msg)

IOError: invalid Python installation: unable to open /usr/plivo/lib/python2.7/config/Makefile (No such file or directory)

 

For some reason, sysconfig.py is deciding to strip the "local" from /usr/local/plivo and so is looking for the Makefile in the wrong place.  (Looking at the code, it does this explicitly, but there's no comment as to why.)  This behavior seems to have changed/been fixed in later versions of Python.  I worked around it by first installing to /usr/plivo (with "bash plivo_install.sh /usr/plivo") and then reinstalling to /usr/local/plivo (with "bash plivo_install.sh /usr/local/plivo") - very hacky, but it seems to work.  I'm not sure what the "right" fix is here, apart from upgrading Python (although Ubuntu 12.04.2 doesn't come with a more recent version).

 

 

Has anyone else seen these issues, do you agree they're worth fixing and, if so, does anyone know how I raise them?

 

Any help/advice you can give would be much appreciated.

 

Thanks,

 

Matt

 

[David | StyleFlare]

Was this over a previous installation or new?

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[Alexander Polyakov]

Hello Matt,

I had the same problem installing Plivo on Ubuntu 12.04.2 this last weekend. Resolved the problem in the same dirty way that you did.

[Matt Williams]

David, this was a new installation.  Vanilla Ubuntu 12.04.2 EC2 instance, then following the instructions linked to above.

Alexander, I'm glad I'm not the only one. ;)

Thanks,

Matt

[Jayesh Labade]

Any update for this issue. I am also facing same problem here

Best Regards,
Jayesh Labade

[devel...@socialnicheguru.com]

Thanks for this. What a random error. 

The hack worked.

Dev @ SocialNicheGuru.com

[sudhanshu srivastav]

what was solution >?