<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Ram,</span></div><div><br><span></span></div><div><span>From the mechanize FAQ:</span></div><div><br><span></span></div><div>How do I change <code>INPUT TYPE=HIDDEN</code> field values (for example, to emulate the effect of JavaScript code)?
</div><div>As with any control, set the control’s <code>readonly</code> attribute false.</div>
<pre class="sourceCode python">form.find_control(<span class="st">"foo"</span>).readonly = <span class="ot">False</span> <span class="co"># allow changing .value of control foo</span><br>form.set_all_readonly(<span class="ot">False</span>) <span class="co"># allow changing the .value of all controls<br></span><br>HTH,<br><br>Howard<br></pre><div><blockquote style="border-left: 2px solid rgb(16, 16, 255); margin-left: 5px; margin-top: 5px; padding-left: 5px;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Ram Rachum <ram@rachum.com><br> <b><span style="font-weight: bold;">To:</span></b> twill@lists.idyll.org <br> <b><span style="font-weight: bold;">Sent:</span></b> Sunday, March 25, 2012 10:43 AM<br> <b><span
style="font-weight: bold;">Subject:</span></b> [twill] Why are hidden fields read-only?<br> </font> </div> <br>
<meta http-equiv="x-dns-prefetch-control" content="off"><div id="yiv230421653"><div dir="ltr"><div>Hello,</div><div><br></div><div>I'm using Twill and I tried to fill in a form which has a hidden field.</div><div><br></div><div>Twill doesn't let me fill in the hidden field, saying it's read-only:</div>
<div><br></div><div> AttributeError: control 'user' is readonly</div><div><br></div><div>Why is this? What's the problem with writing to a hidden field?</div><div><br></div><div><br></div><div>Thanks for your help,</div>
<div>Ram Rachum.</div></div>
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