{"id":135,"date":"2012-04-03T14:15:38","date_gmt":"2012-04-03T12:15:38","guid":{"rendered":"http:\/\/blog.gocept.com\/?p=135"},"modified":"2012-12-03T15:08:29","modified_gmt":"2012-12-03T14:08:29","slug":"profiling-class-based-views","status":"publish","type":"post","link":"https:\/\/blog.gocept.com\/2012\/04\/03\/profiling-class-based-views\/","title":{"rendered":"Profiling class-based views"},"content":{"rendered":"

Just a quick note for profiling e.g. Zope views:<\/p>\n

class MyView(object):\r\n\u00a0\u00a0\u00a0 def __call__(self):\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 result = {}\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 cProfile.runctx('result[\"x\"] = super(Body, self).__call__()',\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 globals(), locals(), '\/tmp\/viewprofile')\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return result['x']<\/pre>\n
Even though “exec ‘result = super(…) in globals(), locals()’ works, it seems that cProfile does something a little differently here, so that writing to a local variable is not possible.<\/p>\n","protected":false},"excerpt":{"rendered":"
Just a quick note for profiling e.g. Zope views: class MyView(object): \u00a0\u00a0\u00a0 def __call__(self): \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 result = {} \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 cProfile.runctx(‘result[“x”] = super(Body, self).__call__()’, \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 globals(), locals(), ‘\/tmp\/viewprofile’) \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 return result[‘x’] Even though “exec ‘result = super(…) in globals(), locals()’ works, it seems that cProfile does something a little differently here, so that writing to a … Continue reading “Profiling class-based views”<\/span><\/a><\/p>\n","protected":false},"author":10315341,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_newsletter_tier_id":0,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[10221],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/pFP3y-2b","jetpack-related-posts":[{"id":2890,"url":"https:\/\/blog.gocept.com\/2017\/10\/24\/zope4-errorhandling\/","url_meta":{"origin":135,"position":0},"title":"Catching and rendering exceptions","author":"Michael Howitz","date":"October 24, 2017","format":false,"excerpt":"Error handling in Zope 4","rel":"","context":"In "en"","block_context":{"text":"en","link":"https:\/\/blog.gocept.com\/category\/en\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1361,"url":"https:\/\/blog.gocept.com\/2013\/08\/28\/run-tests-using-layers-with-py-test\/","url_meta":{"origin":135,"position":1},"title":"Run tests using layers with py.test","author":"Michael Howitz","date":"August 28, 2013","format":false,"excerpt":"TL;DR Use gocept.pytestlayer. 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