I am somewhat new to Python and virtualenv. I have setup a virtualenv with no
site packages under the assumption that all 3rd party packages will be
installed into the site-packages directory for the virtualenv. Another
assumption I have about virtualenv is that it's completely self contained.
When I first setup the virtualenv, install my packages and then install my
application both of those assumptions seem to be correct. However, at some
point I start getting ImportErrors. The be clear, I tested the application and
it was all working correctly, the ImportErrors seem to show up at some random
point that I cannot reproduce.
I have a requirements file that I made with 'pip freeze'. I try to use this to
reinstall the packages but I get errors saying that I cannot install to the
location. The location is the global site-packages directory on my system. I
have the virtualenv activated while installing so I dont know why this is
happening.
Due to something about Centos6 I cant install M2Crypto using pip and have to do
it manually. This gives me the same types of errors:
(botnet_etl)[swright@localhost M2Crypto]$ ./fedora_setup.sh install
running install
error: can't create or remove files in install directory
The following error occurred while trying to add or remove files in the
installation directory:
[Errno 13] Permission denied:
'/usr/lib64/python2.6/site-packages/test-easy-inst
all-29133.write-test'
The installation directory you specified (via --install-dir, --prefix, or
the distutils default setting) was:
/usr/lib64/python2.6/site-packages/
Perhaps your account does not have write access to this directory? If the
installation directory is a system-owned directory, you may need to sign in
as the administrator or "root" account. If you do not have administrative
access to this machine, you may wish to choose a different installation
directory, preferably one that is listed in your PYTHONPATH environment
variable.
For information on other options, you may wish to consult the
documentation at:
http://peak.telecommunity.com/EasyInstall.html
Please make the appropriate changes for your system and try again.
The only fix I have managed for this problem so far is to reinstall the entire
virtualenv from scratch. This works fine for a while and I have to repeat the
process. I would think that I was doing something wrong if the ImportErrors
showed up every time I attempt to run the app but the fact that they show up
later leads me to believe something funky is going on.
Os = Centos6
Python = 2.6.6
Thanks
Steve
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