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Add local cover image because Amazon URLs are so unstable. Also, add cover image to every page.
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@@ -250,13 +250,13 @@ experience of years.</samp>
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<pre class=screen>
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<samp class=p>>>> </samp><kbd class=pp>query = 'user=pilgrim&database=master&password=PapayaWhip'</kbd>
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<a><samp class=p>>>> </samp><kbd class=pp>a_list = query.split('&')</kbd> <span class=u>①</span></a>
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<a><samp class=p>>>> </samp><kbd class=pp>a_list = query.split('&')</kbd> <span class=u>①</span></a>
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<samp class=p>>>> </samp><kbd class=pp>a_list</kbd>
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<samp class=pp>['user=pilgrim', 'database=master', 'password=PapayaWhip']</samp>
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<a><samp class=p>>>> </samp><kbd class=pp>a_list_of_lists = [v.split('=', 1) for v in a_list]</kbd> <span class=u>②</span></a>
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<a><samp class=p>>>> </samp><kbd class=pp>a_list_of_lists = [v.split('=', 1) for v in a_list if '=' in v]</kbd> <span class=u>②</span></a>
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<samp class=p>>>> </samp><kbd class=pp>a_list_of_lists</kbd>
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<samp class=pp>[['user', 'pilgrim'], ['database', 'master'], ['password', 'PapayaWhip']]</samp>
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<a><samp class=p>>>> </samp><kbd class=pp>a_dict = dict(a_list_of_lists)</kbd> <span class=u>③</span></a>
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<a><samp class=p>>>> </samp><kbd class=pp>a_dict = dict(a_list_of_lists)</kbd> <span class=u>③</span></a>
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<samp class=p>>>> </samp><kbd class=pp>a_dict</kbd>
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<samp class=pp>{'password': 'PapayaWhip', 'user': 'pilgrim', 'database': 'master'}</samp></pre>
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