I like Python, but I’d love it if it had support for types – even if one of them was a generic duck-typed object or variant.<\/p>\n
I apparently live and learn.<\/p>\n Update!<\/strong> Apparently I’m stupid while summarizing the error (always copy, never recall). I did not use k<\/tt> in the if<\/tt> statement, rather, I used v<\/tt> which is not a key. This is a programmer error. However, Python does not tell me so, it just does what it asks it to do, i.e. tell me if the not-a-key is a key.<\/p>\n Thanks to Ralk for pointing this out.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" I like Python, but I’d love it if it had support for types – even if one of them was a generic duck-typed object or variant. x = {} k = “potential key” v = MyValue() # Clearly not a key if v in x: pass # Always fails silently I apparently live … Continue reading Python and me<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-654","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/posts\/654","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/comments?post=654"}],"version-history":[{"count":3,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/posts\/654\/revisions"}],"predecessor-version":[{"id":657,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/posts\/654\/revisions\/657"}],"wp:attachment":[{"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/media?parent=654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/categories?post=654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.thelins.se\/johan\/blog\/wp-json\/wp\/v2\/tags?post=654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} x = {}
\nk = \"potential key\"
\nv = MyValue() # Clearly not a key
\n
\nif v in x:
\n pass # Always fails silently
\n
\n<\/code><\/p>\n