difference normal quote and backquote in python
<p>If i write </p>

<pre><code>a=eval('[[0]*2]*2')
a[0][0]=1
</code></pre>

<p><code>a</code> would become <code>[[1,0],[1,0]]</code></p>

<p>If I write </p>

<pre><code>a=eval(`[[0]*2]*2`)
a[0][0]=1
</code></pre>

<p><code>a</code> would become <code>[[1,0],[0,0]]</code></p>

<p>Can anyone tell me why?</p>
