擅长:python、mysql、java
<p>使用<a href="http://docs.python.org/2/library/itertools.html#itertools.chain" rel="nofollow">itertools.chain</a>:</p>
<pre><code>import itertools
l = [['kukatpally', 'somethingelse'], ['gachibowli'], ['Madhapur'], ['Chintal']]
list(itertools.chain(*l))
>> ['kukatpally', 'somethingelse', 'gachibowli', 'Madhapur', 'Chintal']
</code></pre>
<p>或<a href="http://docs.python.org/2/library/itertools.html#itertools.chain.from_iterable" rel="nofollow">itertools.chain.from_iterable</a></p>
<pre><code>import itertools
l = [['kukatpally', 'somethingelse'], ['gachibowli'], ['Madhapur'], ['Chintal']]
list(itertools.chain.from_iterable(l))
>> ['kukatpally', 'somethingelse', 'gachibowli', 'Madhapur', 'Chintal']
</code></pre>