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POHow to set a environment variable with virtualenv?
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  1. POHow to set a environment variable with virtualenv?
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    copied!<p>I'm trying to set up an external program / lib written in python - on debian squeeze.</p> <p>The error I get when I try to launch it that the "environment variable is not set" - it's an exception throw by the developer. So I guess, I have to define it, but where ?</p> <ol> <li>I've thought virtualenv and path were the same, so I've written a .pth loaded at the launch. It solved some mistake but not all.</li> <li>I've read use export in <code>~/.bashrc</code> but I'm not sure it is read in a virtualenv, and I don't want those export be read even when I don't use this virtualenv. </li> <li>I've read too to use export in <code>virtualenv/bin/activate</code>, but it doesn't seem to work correctly.</li> </ol> <p>I'm trying to install <a href="http://www.urbansim.org/Download/LinuxInstallation" rel="nofollow">Opus and Urbansim</a>.</p> <p>Here is what I get when launching:</p> <pre><code>(opus-env)touki@touki:~/Projects/opus-env$ ./src/opus_gui/opus.py Traceback (most recent call last): File "./src/opus_gui/opus.py", line 14, in &lt;module&gt; from opus_gui.main.controllers.opus_gui_configuration import OpusGuiConfiguration File "/home/touki/Projects/opus-test/src/opus_gui/main/controllers/opus_gui_configuration.py", line 12, in &lt;module&gt; from opus_core import paths File "/home/touki/Projects/opus-test/src/opus_core/paths.py", line 44, in &lt;module&gt; OPUS_HOME = _safe_getenv('OPUS_HOME', _get_default_opus_home) File "/home/touki/Projects/opus-test/src/opus_core/paths.py", line 33, in _safe_getenv return os.environ[key] if key in os.environ else default_func() File "/home/touki/Projects/opus-test/src/opus_core/paths.py", line 36, in _get_default_opus_home raise Exception('OPUS_HOME environment variable must be set.') Exception: OPUS_HOME environment variable must be set. </code></pre> <p>NB.: I've searched, autoenv combine virtualenvwrapper seems to provide an answer, but I would prefer not use external programs.</p>
 

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