<spanclass="k">raise</span><spanclass="ne">RuntimeError</span><spanclass="p">(</span><spanclass="s2">"Invalid path to chemlib '"</span><spanclass="o">+</span><spanclass="nb">str</span><spanclass="p">(</span><spanclass="n">path_to_chemlib</span><spanclass="p">)</span>
<spanclass="o">+</span><spanclass="s2">"' specified!</span><spanclass="se">\n</span><spanclass="s2">A compounds library must either be "</span>
<spanclass="o">+</span><spanclass="s2">"set at compile-time ('compounds.chemlib' file in "</span>
<spanclass="o">+</span><spanclass="s2">"$OST_ROOT/share or below) or set in OST with "</span>
<spanclass="o">+</span><spanclass="s2">"ost.conop.SetDefaultLib before importing any "</span>
<spanclass="k">raise</span><spanclass="ne">RuntimeError</span><spanclass="p">(</span><spanclass="s2">"Seq too short for Denovo sampling (min length 9)"</span><spanclass="p">)</span>
<spanclass="c1"># check whether profile / psipred_prediction are consistent if present</span>
<spanclass="k">raise</span><spanclass="ne">RuntimeError</span><spanclass="p">(</span><spanclass="s2">"Must provide an environment when you provide a scorer!"</span><spanclass="p">)</span>