Category | python

I created captcha sample long time ago but this time, it's much simple example. If you would like to generate images with your logo, it's only few lines of code in PIL. import Image baseim = Image.open(“original.png”) logoim = Image.open(“logo.png”) #transparent image baseim.paste(logoim,(baseim.size[0]-logoim.size[0],baseim.size[1]-logoim.size[1]),logoim) baseim.save(‘new.png’,‘PNG’) Important thing is the 3rd argument of the paste function. You can specify your PNG as alpha also so that you avoid black background. here is the original image and this is the logo then...

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If you try to use truetype font or jpeg library on MacOSX wih Python + PIL, it complains. Somehow those libraries are missing in mac now (it was working in windows). Here is how to install:Download those component see http://wiki.python.org/moin/MacPython/UniversalLibrariesAndExtensionsalso check:<br />http://freetype.sourceforge.net<br />http://www.ijg.org/files/jpegsrc.v6b.tar.gzbuild them./configuremakesudo make installGet PIL from http://www.pythonware.com/products/pil/sudo python setup.py installMake sure you get those messages--- TKINTER support ok--- JPEG support ok--- ZLIB (PNG/ZIP)...

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AppBuck.com is a iPhone / iPod Touch apps community. We have various categories of App Store and each forum entry is ready to say something. Feel free and comment on the forum! http://www.appbuck.com iphone, forum, apps, itunes,

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We would like to announce that OpenFlashCards.com was published today. This is a website which you can browse,create, and share multiple choice questions flash cards. The interface is simple and easy to start to create your own cards. Please feel free to create your cards. We will add more features on this website : 1. Embedding Cards in your website. 2. Community Functions such as rating system. 3. More configuration about flash cards settings. http://www.openflashcards.com/ Check these screen shots: Please give us your suggestion and recommended categories...

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We enhanced the pagechat player to hide the top bar and users menu. Now all you have to do is copy and paste the following code <script> var pagechat_width = '600px'; var pagechat_height = '400px'; </script> <script src="http://s1.pagechat.com/pagechat/js/embed.js" id="pagechat_embed"> </script> Check it out @ http://www.oreillymaker.com

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PageChat.com is an innovative tool to communicate with anyone by dynamically creating chat rooms. You could also use page chat to communicate with others about various topics of interest. Integrate our chat rooms with your websites/blogs to create a unique experience for your audience to chat with each other while on the same page. We are currently releasing this version as a public beta and these are upcoming features: Sharing FilesGuest ViewYoutube integration Please Check it out @ http://www.pagechat.com/ Enjoy!

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I wrote a light weight python based screen scraper, which seems to be working great. Some of the features: Session Management when using cookies Seperate functions for get,post and downloading large files Automatic handling of redirections Here is the code for it. import httplib,urllib,random,sys,re,os from urlparse import urlparse class PyScraper: def __init__(self): self.cookie="" self.currenturl="" self.urlhist=[] def __str__(self): ret='' for item in self.urlhist: ret=ret+item+'->' return ret def download(self,url,localfolder): bufsize...

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Today I found something cool for drawing graphs. Its called GraphViz, You can download it from http://www.graphviz.org/ It can output in various formats including SVG, PNG and GIF. But PNG and GIF dont have aliasing enabled, so they are pretty crappy. For an example, look here. An image generated using PNG output http://www.linkulu.com/random/?format=png&numnodes=10&size=5,5 Now look @ an another random graph with SVG output http://www.linkulu.com/random/?format=svg&numnodes=10&size=5,5 Here is the python code to generate the graphs. I used Django ofcourse def...

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It seems that there are no good introductions for how to create transparent image text. However we want it for common image module like CAPTCHA which is an image authentication method. It's easy to just draw text on image, but in order to rotate the text, you have to rotate the image with the text. I think one of the solution is using mask after rotation. You need 3 images to do this. 1. Background 2. Text 3. Mask 2 and 3 must be in a same size, and when you "paste" the text, you can specify the mask as the extra paramter. This is simple exapmle, to rotated "Hello" on the background...

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I added line numbers and some formatting capabilities to Pygments.com Now the script tag renders line numbers by default. Also RTF download of colored code is available on the Test Page for those nice looking word documents Check it out @ http://www.pygments.com

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I purchased Pygments.com domain yesterday. Iam surprised the domain is still available. i guess the Pygments guys dont really care about the .com domain name. Any way access it via http://www.pygments.com You can use the code colorizer by going to the Colorizer Test Program. But the cool thing i added is, a javascript service to colorize any code. Lets say you have a webpage with code, that needs colorizing, Just add this Javascript to the end of the page (Before you close the body tag) <script src="http://www.pygments.com/js/init.js" type="text/javascript"></script> All you will...

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We at ObjectGraph are moving to a dedicated hosting solution. The server is hosted in NY. It has Cent OS 4.4 (Based on RHEL 4). It comes installed with Python 2.3.4. A lot of packages (like yum) depend on this version of python in the system. So when i found out that some of the syntax like '@staticfunction' we were using to develop in django is not compatible with python 2.3.4, I was distraught. I decided i need to upgrade python. Here is a simple test program that fails in the older version of Python. class Test: def __init__(self): print "Hello World!" ...

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The Python HTTPParser both in HTTPParser and htmllib are very flexible to provide your own implementations for handling start tag, end tags and data elements, but it has limitations. For example if i wanted to preserve input formatting of HTML, but change just a few tags it would be hard to do. I found a better solution. Beautiful Soup is a good HTML parser from the initial impressions. I tried many public sites like cnn.com, news.com etc and able to parse it into a tree and access the elements very easily. It provides very easy functions to search the entire tree and returns references...

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