Posts Tagged ‘fixes’

Fix for JPEG upload problem in Django in virtualenv

December 2nd, 2009

I have been busy modifying Django‘s models for a project to include a field for uploading an image and was testing the model using Django’s Admin interface when I suddenly got this error:

Upload a valid image. The file you uploaded was either not an image or a corrupted image.

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Author: Cyril Pauya Categories: programming Tags: , , , , ,

Bug in myListBoard.Com tags

July 30th, 2009

I found a bug in the tagging feature of  The bug manifests as you create a new list using a tag that has been used for more than 6 or more times in your other lists.

Request Method: GET
Request URL: http://localhost:8000/users/cy/
Exception Type: TemplateSyntaxError
Exception Value: Caught an exception while rendering: invalid literal for int() with base 10: ”
Exception Location: /usr/local/lib/python2.6/dist-packages/django/template/ in render_node, line 81
Python Executable: /usr/bin/python

Here is the code in my template that causes the error:

<a class="tagcloud" style="font-size: {{ tag.font_size|add:"12" href="/users/{{ userviewed }}/lists/tagged/{{ }}/">{{ }}</a>

The culprit in the above code is the statement: {{ tag.font_size|add:"12" }}, the font_size property of the tag object doesn’t seem to return a value that could be safely converted to a number.

I have been using to implement tagging in

I think the problem is with the steps option on the tagging_tags tags of the django-tagging application which defaults to the value of 7. When a list is created using a tag that has been used 6 times, there might some math in the django-tagging application that I didn’t bother to look into.

So being a lazy coder, I instead replaced the culprit code with this:
{{ tag.count|add:"12" }}.

That solved the problem and the tags still grows as the number of usage grows too. After uploading my changes, the site seems to work okay even with many uses of the same tag on a list.

I might be missing something with the use of the font_size property but hey is already in production, so any quick solution is acceptable at this time. :)

Author: Cyril Pauya Categories: projects Tags: , ,

Computer cannot get an IP address from DHCP server

July 13th, 2009

My office-mate had this weird problem with his computer: It cannot get an IP address from our DHCP server.  The motherboard of his PC is an Asus P5GC-MX.  He runs VMWare Player and Virtual Box, desktop virtualization software necessary for job, and all virtual machines have IP addresses, except the host machine.  To cut the story short, we did the following to diagnose the problem:

  • checked the UTP wire;
  • checked Windows XP’s firewall and network settings;
  • checked that the computer is set to automatically obtain an IP address;
  • used his wire with another computer;
  • used a virtual machine in his computer to get an IP address;
  • reset the computer a lot of times;

All steps failed to get an IP address for his computer from our DHCP server.

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Author: Cyril Pauya Categories: Network Tags: , , ,

Problem with my Custom Google Search

March 29th, 2009

Just this afternoon, Ian pointed out that my Custom Google Search does not correctly display under FireFox and Internet Explorer, it looks okay with Opera though.  I checked it out and sure enough, it only looks good with my favorite browser Opera.

It’s my fault, I forgot to test my updates with the other web browsers yesterday.

After fixing it, I did a sample search for “PayPal” to check if it’s working.  To my surprise it did not display any article from my blog with PayPal in it.  I thought something’s wrong with my blog and tried “IMBR” and the articles were displayed.  Now that’s a bummer!  I know Google still does indexing of my pages but this is not good to my visitors.

So for now, I reverted everything to WordPress’ search engine.  Google search results is not important to me for now anyway.  What’s important is that the search functionality works.

Thanks Ian. :)

Author: Cyril Pauya Categories: General Tags: