Weird equal sign "=" inserts in value when uploading file via POST using blobstore_handlers.BlobstoreUploadHandler on Google App Engine</a></h1> </div> <div class="grid fw-wrap pb8 mb16 bb bc-black-075"> <div class="grid--cell ws-nowrap mr16 mb8" title="2016-01-12 19:07:53Z"> <span class="fc-light mr2">Asked</span> <time itemprop="dateCreated" datetime="2011-03-16T21:32:07.560" class="fromnow">Mar 16 '11 at 21:32</time> </div> <div class="grid--cell ws-nowrap mr16 mb8"> <span class="fc-light mr2">Active</span> <time class="fromnow" title="2016-02-02T09:59:47.637" datetime="2016-02-02T09:59:47.637">Feb 02 '16 at 09:59</a> </div> <div class="grid--cell ws-nowrap mb8" title="Viewed 454 times"> <span class="fc-light mr2">Viewed</span> 454 times </div> </div> <div id="mainbar" role="main" aria-label="questions and answers"> <div id="question" class="question" data-questionid="5332058" data-ownerid="663312" data-score="1"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="5332058"> <button class="js-vote-up-btn grid--cell s-btn s-btnunset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="1">1</div> <button class="js-bookmark-btn s-btn s-btnunset c-pointer py4"> <svg aria-hidden="true" class="svg-icon iconBookmark" width="18" height="18" viewBox="0 0 18 18"><path d="M6 1a2 2 0 00-2 2v14l5-4 5 4V3a2 2 0 00-2-2H6zm3.9 3.83h2.9l-2.35 1.7.9 2.77L9 7.59l-2.35 1.7.9-2.76-2.35-1.7h2.9L9 2.06l.9 2.77z"></path></svg> <div class="js-bookmark-count mt4" data-value=""></div> </button> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p>Can only reproduce this issue on Google App Engine Server, not on my development server. Only when I copy-paste a part of web page to the <code><textarea></code>.</p> <p>I searched Google App Engine forum and found two related posts, but still didn't figure it out. Can somebody give me more hint? Thanks!</p> <p>Here is my code:</p> <p>HTML</p> <pre><code>< form method = "post" action = "{% if action %}{{ action }}{% endif %}" enctype = "multipart/form-data" accept - charset = "UTF-8" > < textarea name = "textbox" id = "textbox" rows = "3" cols = "50" wrap = "soft" > </code></pre> <p>Python</p> <pre><code>t1 = self.request.get("textbox") t2 = self.request.POST["textbox"] logging.info("request get: %s, %s" % (t1, t2)) </code></pre> <p>Related Posts: <a class="external-link" href="http://code.google.com/appengine/forum/python-forum.html?place=topic%2Fgoogle-appengine-python%2FOYfn9tXncUk%2Fdiscussion" rel="nofollow">http://code.google.com/appengine/forum/python-forum.html?place=topic%2Fgoogle-appengine-python%2FOYfn9tXncUk%2Fdiscussion</a></p> <p><a class="external-link" href="http://code.google.com/appengine/forum/python-forum.html?place=topic%2Fgoogle-appengine-python%2FCsSrUmb7N4E%2Fdiscussion" rel="nofollow">http://code.google.com/appengine/forum/python-forum.html?place=topic%2Fgoogle-appengine-python%2FCsSrUmb7N4E%2Fdiscussion</a></p></div> <div class="mt24 mb12"> <div class="post-taglist grid gs4 gsy fd-column"> <div class="grid ps-relative"> <a href="../../questions/tagged/python" class="post-tag js-gps-track" title="show questions tagged 'python'" rel="tag">python</a> <a href="../../questions/tagged/html" class="post-tag js-gps-track" title="show questions tagged 'html'" rel="tag">html</a> <a href="../../questions/tagged/google-app-engine" class="post-tag js-gps-track" title="show questions tagged 'google-app-engine'" rel="tag">google-app-engine</a> <a href="../../questions/tagged/encode" class="post-tag js-gps-track" title="show questions tagged 'encode'" rel="tag">encode</a> </div> </div> </div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="edited Mar 16 '11 at 21:35">edited Mar 16 '11 at 21:35</time> <a href="../../users/635608/mat" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/635608.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Mat" /> </a> <div class="s-user-card--info"> <a href="../../users/635608/mat" class="s-user-card--link">Mat</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">202,337</li> <li class="s-award-bling s-award-blinggold" title="40 gold badges">40</li> <li class="s-award-bling s-award-blingsilver" title="393 silver badges">393</li> <li class="s-award-bling s-award-blingbronze" title="406 bronze badges">406</li> </ul> </div> </div> </div> <div class="post-signature owner grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="asked Mar 16 '11 at 21:32">asked Mar 16 '11 at 21:32</time> <a href="../../users/663312/ethan" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/663312.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Ethan" /> </a> <div class="s-user-card--info"> <a href="../../users/663312/ethan" class="s-user-card--link">Ethan</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">261</li> <li class="s-award-bling s-award-blingsilver" title="2 silver badges">2</li> <li class="s-award-bling s-award-bling__bronze" title="6 bronze badges">6</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> <div id="comments-5332058" class="comments js-comments-container bt bc-black-075 mt12 " data-post-id="5332058" data-min-length="15"> <ul class="comments-list js-comments-list" data-remaining-comments-count="0" data-canpost="false" data-cansee="true" data-comments-unavailable="false" data-addlink-disabled="true"> <li id="comment-6019020" class="comment js-comment " data-comment-id="6019020" data-comment-owner-id="187606" data-comment-score="0"> <div class="js-comment-actions comment-actions"> <div class="comment-score js-comment-edit-hide"> </div> </div> <div class="comment-text js-comment-text-and-form"> <a name="comment6019020_5332058"></a> <div class="comment-body js-comment-edit-hide"> <span class="comment-copy">Can you show the generated HTML code of the textarea when the weird symbol appears?</span> – <a href="../../users/187606/pekka" title="442,112 reputation" class="comment-user ">Pekka</a> <span class="comment-date" dir="ltr"><a class="comment-link" href="../../questions/5332058/weird-equal-sign-inserts-in-textarea-value-when-uploading-file-via-post-using-#comment6019020_5332058"><span title="2011-03-16T21:41:05.743 License: CC BY-SA 2.5" class="relativetime-clean">Mar 16 '11 at 21:41</span></a></span> </div> </div> </li> <li id="comment-18536435" class="comment js-comment " data-comment-id="18536435" data-comment-owner-id="136598" data-comment-score="0"> <div class="js-comment-actions comment-actions"> <div class="comment-score js-comment-edit-hide"> </div> </div> <div class="comment-text js-comment-text-and-form"> <a name="comment18536435_5332058"></a> <div class="comment-body js-comment-edit-hide"> <span class="comment-copy">This is still happening 18 months later. Wish Google would fix it.</span> – <a href="../../users/136598/new-name" title="15,861 reputation" class="comment-user ">new name</a> <span class="comment-date" dir="ltr"><a class="comment-link" href="../../questions/5332058/weird-equal-sign-inserts-in-textarea-value-when-uploading-file-via-post-using-#comment18536435_5332058"><span title="2012-11-23T23:08:05.520 License: CC BY-SA 3.0" class="relativetime-clean">Nov 23 '12 at 23:08</span></a></span> </div> </div> </li> </ul> </div> </div> </div> </div> <div id="answers"> <a name="tab-top"></a> <div id="answers-header"> <div class="answers-subheader grid ai-center mb8"> <div class="grid--cell fl1"> <h2 class="mb0" data-answercount="9">2 Answers<span style="display:none;" itemprop="answerCount">2</span></h2> </div> </div> </div> <a name="5333516"></a> <div id="answer-5333516" class="answer " data-answerid="5333516" data-ownerid="663312" data-score="3" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="5333516"> <button class="js-vote-up-btn grid--cell s-btn s-btnunset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="3">3</div> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p>Thanks to a hint on Google App Engine Forums from user Djidjadji I found that <code>quopri.decodestring()</code> helps me out! Here is the code I used. Hope it can save other dispirited programmers' time :)</p> <pre><code>tMessage = self.request.get("tMessage") tMessage = quopri.decodestring(tMessage) tMessage = " ".join(tMessage.split()) #Remove all whitespace logging.info("tMessage: %s" % tMessage) </code></pre></div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="edited Mar 17 '11 at 02:14">edited Mar 17 '11 at 02:14</time> <a href="../../users/603977/jscs" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/603977.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="jscs" /> </a> <div class="s-user-card--info"> <a href="../../users/603977/jscs" class="s-user-card--link">jscs</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">63,694</li> <li class="s-award-bling s-award-blinggold" title="13 gold badges">13</li> <li class="s-award-bling s-award-blingsilver" title="151 silver badges">151</li> <li class="s-award-bling s-award-blingbronze" title="195 bronze badges">195</li> </ul> </div> </div> </div> <div class="post-signature owner grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="answered Mar 17 '11 at 00:41">answered Mar 17 '11 at 00:41</time> <a href="../../users/663312/ethan" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/663312.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Ethan" /> </a> <div class="s-user-card--info"> <a href="../../users/663312/ethan" class="s-user-card--link">Ethan</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">261</li> <li class="s-award-bling s-award-blingsilver" title="2 silver badges">2</li> <li class="s-award-bling s-award-blingbronze" title="6 bronze badges">6</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> <div id="comments-5333516" class="comments js-comments-container bt bc-black-075 mt12 " data-post-id="5333516" data-min-length="15"> <ul class="comments-list js-comments-list" data-remaining-comments-count="0" data-canpost="false" data-cansee="true" data-comments-unavailable="false" data-addlink-disabled="true"> <li id="comment-18536523" class="comment js-comment " data-comment-id="18536523" data-comment-owner-id="136598" data-comment-score="0"> <div class="js-comment-actions comment-actions"> <div class="comment-score js-comment-edit-hide"> </div> </div> <div class="comment-text js-comment-text-and-form"> <a name="comment18536523_5333516"></a> <div class="comment-body js-comment-edit-hide"> <span class="comment-copy">This doesn't work when the textarea has non-ascii characters.</span> – <a href="../../users/136598/new-name" title="15,861 reputation" class="comment-user ">new name</a> <span class="comment-date" dir="ltr"><a class="comment-link" href="../../questions/5332058/weird-equal-sign-inserts-in-textarea-value-when-uploading-file-via-post-using-#comment18536523_5333516"><span title="2012-11-23T23:16:47.683 License: CC BY-SA 3.0" class="relativetime-clean">Nov 23 '12 at 23:16</span></a></span> </div> </div> </li> </ul> </div> </div> </div> </div> <a name="35150201"></a> <div id="answer-35150201" class="answer " data-answerid="35150201" data-ownerid="326806" data-score="0" itemprop="suggestedAnswer" itemscope="" itemtype="https://schema.org/Answer"> <div class="post-layout"> <div class="votecell post-layout--left"> <div class="js-voting-container grid jc-center fd-column ai-stretch gs4 fc-black-200" data-post-id="35150201"> <button class="js-vote-up-btn grid--cell s-btn s-btnunset c-pointer"><svg aria-hidden="true" class="m0 svg-icon iconArrowUpLg" width="36" height="36" viewBox="0 0 36 36"><path d="M2 26h32L18 10 2 26z"></path></svg></button> <div class="js-vote-count grid--cell fc-black-500 fs-title grid fd-column ai-center" itemprop="upvoteCount" data-value="0">0</div> </div> </div> <div class="postcell post-layout--right"> <div class="s-prose js-post-body" itemprop="text"><p>This is a <a class="external-link" href="https://code.google.com/p/googleappengine/issues/detail?id=2749" rel="nofollow">bug in the outdated WebOb library</a> of Google App Engine.</p> <p>Just add add this newer version of WebOb in your app.yaml file.</p> <pre><code>libraries: - name: webob version: "1.2.3" </code></pre> <p>The proposed <code>quopri</code> fix by Josh Caswell is only half the rent. It doesn't work with non-ascii characted.</p></div> <div class="mb0"> <div class="mt16 grid gs8 gsy fw-wrap jc-end ai-start pt4 mb16"> <div class="grid--cell mr16 fl1 w96"></div> <div class="post-signature grid--cell"> <div class="s-user-card s-user-card"> <time class="s-user-card--time" datetime="answered Feb 02 '16 at 09:59">answered Feb 02 '16 at 09:59</time> <a href="../../users/326806/andrin-von-rechenberg" class="s-avatar s-avatar32 s-user-card--avatar"> <img class="s-avatar--image" src="../../users/profiles/326806.webp" data-jdenticon-width="32" data-jdenticon-height="32" data-jdenticon-value="Andrin von Rechenberg" /> </a> <div class="s-user-card--info"> <a href="../../users/326806/andrin-von-rechenberg" class="s-user-card--link">Andrin von Rechenberg</a> <ul class="s-user-card--awards"> <li class="s-user-card--rep" title="reputation score">657</li> <li class="s-award-bling s-award-blingsilver" title="4 silver badges">4</li> <li class="s-award-bling s-award-blingbronze" title="11 bronze badges">11</li> </ul> </div> </div> </div> </div> </div> </div> <div class="post-layout--right js-post-comments-component"> </div> </div> </div> </div> </div> <div id="sidebar" class="show-votes" role="complementary" aria-label="sidebar"> <div class="module sidebar-linked"> <h4 id="h-linked">Linked</h4> <div class="linked"> <div class="spacer"> <a title="Vote score (upvotes - downvotes)"><div class="answer-votes answered-accepted default">1</div></a> <a href="../../questions/11234034/html-textarea-submission-causing-chars-to-display-at-new-lines-only-when-deplo" class="question-hyperlink">html textarea submission causing '=' chars to display at new lines only when deployed on GAE</a> </div> </div> </div> </div> </div> </div> <script src="../../static/js/stack-icons.js"></script> <script src="../../static/js/fromnow.js"></script> </body> </html>