I replied to @mrits because @mrits was presenting virtualenv as replacement for using pyinstaller to manage the installation of non-OS-managed Python versions (which @cowsandmilk was talking about).<p>I&#x27;m unsure how what I said:<p>&gt; If you want another Python, then you need to install it yourself (somehow) and then point virtualenv at it.<p>Differs from what you are saying:<p>&gt; &#x27;virtualenv -p &#x2F;usr&#x2F;bin&#x2F;python3.5 venv&#x27;