<div class="gmail_quote"><div>I find that sets are sufficient for this purpose, so your original:</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb">
<div class="h5">&gt;    assert a_transition.next_states == [&quot;a state&quot;,&quot;another state&quot;]<br></div></div></blockquote><div><br></div><div> Would become:</div><div><br></div><div>    assert set(a_transition.next_states) == set([&quot;a state&quot;,&quot;another state&quot;])</div>
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