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    <h2>JavaScript part - encoding</h2> <p>In Javascript you do:</p> <pre class="lang-js prettyprint-override"><code>var arr = ["a","b",,,"e"]; var json_string = JSON.stringify(arr); </code></pre> <p>then you somehow pass <code>json_string</code> (now equal to "<code>["a","b",null,null,"e"]</code>" string) from JavaScript to Python.</p> <h2>Python part - decoding</h2> <p>Then, on Python side do:</p> <pre class="lang-py prettyprint-override"><code>json_string = '["a","b",null,null,"e"]' # passed from JavaScript try: import simplejson as json except (ImportError,): import json result = json.loads(json_string) </code></pre> <p>As a result you get <code>[u'a', u'b', None, None, u'e']</code> in Python.</p> <h2>More links</h2> <p>See below:</p> <ul> <li><a href="http://jsfiddle.net/Gtehr/">demo of JavaScript part</a>,</li> <li><a href="https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/JSON/stringify">Documentation on JSON.stringify() at Mozilla Developer Network</a>,</li> <li><a href="http://ideone.com/oqnQZ">demo of Python part</a>,</li> </ul> <h2>Dependencies</h2> <p>The above solutions require:</p> <ul> <li><code>JSON.stringify()</code> in JavaScript, which is in all mobile browsers, Chrome, Firefox, Opera, Safari and in IE since version 8.0 (more detailed list of compatible browsers is <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#Browser_compatibility">here</a>),</li> <li><code>json</code> Python library (the above code will use <code>simplejson</code> optionally, if available, but is not required), which comes in standard library,</li> </ul> <p>So, in short <strong>there are no external dependencies</strong>.</p>
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    1. POConvert Javascript array to python list?
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    1. COI cant use JSON.stringify because JSON.stringify a javascript function .I cant use it .So there is no null.There is commas consecutively.
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    2. CO@mesuutt: So you say you do not have access to JavaScript and you want to parse JavaScript variable from Python?
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    3. COYes I want to parse javascript array from python.You can look my script : [http://ideone.com/jhjZe](http://ideone.com/jhjZe)
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