http://code.activestate.com/recipes/tags/comparison-switch/2016-03-28T21:36:31-07:00ActiveState Code Recipes2016-03-26T18:31:11-07:00Vasudev Ramhttp://code.activestate.com/recipes/users/4173351/http://code.activestate.com/recipes/580631-file-comparison-utility-in-python/

<p style="color: grey"> Python recipe 580631 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/commandline/">commandline</a>, <a href="/recipes/tags/comparison/">comparison</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/linux/">linux</a>, <a href="/recipes/tags/python/">python</a>, <a href="/recipes/tags/unix/">unix</a>, <a href="/recipes/tags/utilities/">utilities</a>). </p> <p>This is a recipe to compare any two files via a Python command-line program. It is like a basic version of the cmp command of Unix or the fc.exe (file compare) command of Windows.</p>

2016-03-28T21:36:31-07:00Vasudev Ramhttp://code.activestate.com/recipes/users/4173351/http://code.activestate.com/recipes/580632-python-one-liner-to-compare-two-files/

<p style="color: grey"> Python recipe 580632 by <a href="/recipes/users/4173351/">Vasudev Ram</a> (<a href="/recipes/tags/comparison/">comparison</a>, <a href="/recipes/tags/file/">file</a>, <a href="/recipes/tags/files/">files</a>, <a href="/recipes/tags/programming/">programming</a>, <a href="/recipes/tags/python/">python</a>). </p> <p>As the title says ...</p> <p>It prints True if the files compared are the same, and False if they differ (either in size or in content).</p>

2011-04-08T07:26:45-07:00Denis Gorodetskiyhttp://code.activestate.com/recipes/users/4177587/http://code.activestate.com/recipes/577645-a-script-evaluating-psnr-metric-of-two-yuv420-fram/

<p style="color: grey"> Python recipe 577645 by <a href="/recipes/users/4177587/">Denis Gorodetskiy</a> (<a href="/recipes/tags/comparison/">comparison</a>, <a href="/recipes/tags/difference/">difference</a>, <a href="/recipes/tags/frame/">frame</a>, <a href="/recipes/tags/metric/">metric</a>, <a href="/recipes/tags/psnr/">psnr</a>, <a href="/recipes/tags/video/">video</a>, <a href="/recipes/tags/yuv/">yuv</a>). Revision 2. </p> <p>A script evaluating PSNR metric of two YUV420 frames <strong>usage: psnr.py filename1.yuv filename2.yuv frame_width frame_height</strong></p> <p>Alternatively if filename1 contains width and height in the form <strong>file-1200x1600.yuv</strong>, the script will extract width and height of a frame from the filename. Then usage even simplier: <strong>psnr.py filename1-1200x1600.yuv filename2.yuv</strong></p>

2016-02-11T17:31:39-08:00Jice Clavierhttp://code.activestate.com/recipes/users/4089467/http://code.activestate.com/recipes/576589-compare-mysql-db/

<p style="color: grey"> Python recipe 576589 by <a href="/recipes/users/4089467/">Jice Clavier</a> (<a href="/recipes/tags/compare/">compare</a>, <a href="/recipes/tags/comparison/">comparison</a>, <a href="/recipes/tags/database/">database</a>, <a href="/recipes/tags/mysql/">mysql</a>). Revision 3. </p> <p>Small module to and check for differences between 2 DB.</p> <p>It will compare the table list, the tables structure and their content.</p> <p>When you run the program, you are ask if you want a detailed comparison. As global comparison will list all the different tables, detailed comparison will output every different record (and will take longer to run)</p>

2008-10-28T11:54:42-07:00Michael Foordhttp://code.activestate.com/recipes/users/2183852/http://code.activestate.com/recipes/576529-total-ordering-class-decorator-for-filling-in-rich/

<p style="color: grey"> Python recipe 576529 by <a href="/recipes/users/2183852/">Michael Foord</a> (<a href="/recipes/tags/class_decorator/">class_decorator</a>, <a href="/recipes/tags/comparison/">comparison</a>, <a href="/recipes/tags/decorator/">decorator</a>, <a href="/recipes/tags/ordering/">ordering</a>, <a href="/recipes/tags/sorting/">sorting</a>). Revision 5. </p> <p><code>total_ordering</code> and <code>force_total_ordering</code> are class decorators for Python 2.6 &amp; Python 3.</p> <p>They provides <em>all</em> the rich comparison methods on a class by defining <em>any</em> one of '__lt__', '__gt__', '__le__', '__ge__'.</p> <p><code>total_ordering</code> fills in all unimplemented rich comparison methods, assuming at least one is implemented. <code>__lt__</code> is taken as the base comparison method on which the others are built, but if that is not available it will be constructed from the first one found.</p> <p><code>force_total_ordering</code> does the same, but having taken a comparison method as the base it fills in <em>all</em> the others - this overwrites additional comparison methods that may be implemented, guaranteeing consistent comparison semantics.</p>