<p dir="auto">I find the reliance on conda in the Ubuntu development environment quickstart guide exceedingly complex, not to mention the need to rename <code class="notranslate">libgfortran.so</code>, but I guess that those instructions are there for a good reason (historical pain setting up development environments, messed up Python installations... and other incarnations of Evil ™️ ). However, I tried this on a modern Linux Mint 20 box (based on Ubuntu 20.04 LTS Focal Fossa) and this seemed to work just fine:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="$ # create and activate pyenv/venv/virtualenv environment
(venv) $ pip install -e .
(venv) $ pip install numpy  # Surprisingly, NumPy didn't get installed in this step
(venv) $ pip install pytest
(venv) $ pytest -k optimize  # Works!"><pre class="notranslate"><code class="notranslate">$ # create and activate pyenv/venv/virtualenv environment
(venv) $ pip install -e .
(venv) $ pip install numpy  # Surprisingly, NumPy didn't get installed in this step
(venv) $ pip install pytest
(venv) $ pytest -k optimize  # Works!
</code></pre></div>
<p dir="auto">Is there any potential drawback in following this method?</p>
<p dir="auto"><em>Original ticket <a href="http://projects.scipy.org/scipy/ticket/1721" rel="nofollow">http://projects.scipy.org/scipy/ticket/1721</a> on 2012-08-21 by trac user alataza, assigned to unknown.</em></p>
<p dir="auto">Hi!</p>
<p dir="auto">I'm a complete newbie to SciPy and NumPy. I've downloaded and installed these packages   as I need them to run the Brian simulator. I'm using OSX 10.8 (just installed from the scratch to be able to use the SciPy Superpack from Chris Fonnesbeck) with Fortan 2.7.2, XCode 4.4.1. As per Fonnesbeck's reccomendation, I've performed the test and several errors have arised. I know that he's using development versions (SciPy 0.12) and therefore may be bugs there, but I couldn't get Brian work just by installing the stable releases with my previous OSX version. I'm attaching the output generated by the test file in case it might help you in the development of Scipy.</p>
<p dir="auto">Cheers!<br>
Marc.</p>