title: i import PyNaCl, but whenever i upgrade python to a newer version, it is being removed ( Python )
body: <p>i am using <a href="https://repl.it" rel="nofollow noreferrer">Repl.it</a> and i am having trouble using PyNaCl in Python.</p>
  <p>i firstly install the package. <code>pip install PyNaCl</code></p>
  <p>then i import it. <code>import nacl</code></p>
  <p>PyNaCl works properly and i have no problem with that but whenever there is a newer version, and i upgrade or it upgrades by itself, it also removes PyNaCl.</p>
  <p>i make sure if it is in the list and yes, it is there at first but after upgrading, when i check the list (<code>pip list</code>) it is not there anymore. so i always need to install it again. and it is a total disaster when making a discord bot.</p>
  <p>how can i manage to make it install PyNaCl while upgrading ( there is no such thing with other packages i imported )</p>