\n
The hash values for strings and integers are absolutely not standardized. They could change with any new implementation of Python, including between 2.6.1 and 2.6.2, or between a Mac and a PC implementation of the same version, etc.<\/p>\n
More importantly, though, stable hash values doesn’t imply repeatable iteration order. You cannot depend on the ordering of values in a set, ever<\/strong>. Even within one process, two sets can be equal and not return their values in the same order. This can happen if one set has had many additions and deletions, but the other has not:<\/p>\n>>> a = set()\n>>> for i in range(1000000): a.add(str(i))\n...\n>>> for i in range(6, 1000000): a.remove(str(i))\n...\n>>> b = set()\n>>> for i in range(6): b.add(str(i))\n...\n>>> a == b\nTrue\n>>> list(a)\n['1', '5', '2', '0', '3', '4']\n>>> list(b)\n['1', '0', '3', '2', '5', '4']\n<\/code><\/pre>\n<\/p><\/div>\n<\/div>\n<\/div>\n
1<\/span> <\/p><\/div>\n<\/div>\n[ad_2]<\/p>\n
solved Python: Are `hash` values for built-in numeric types, strings standardised? <\/p>\n","protected":false},"excerpt":{"rendered":"
[ad_1] The hash values for strings and integers are absolutely not standardized. They could change with any new implementation of Python, including between 2.6.1 and 2.6.2, or between a Mac and a PC implementation of the same version, etc. More importantly, though, stable hash values doesn’t imply repeatable iteration order. You cannot depend on the … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[349],"class_list":["post-22789","post","type-post","status-publish","format-standard","hentry","category-solved","tag-python"],"yoast_head":"\n[Solved] Python: Are `hash` values for built-in numeric types, strings standardised? - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-python-are-hash-values-for-built-in-numeric-types-strings-standardised\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Python: Are `hash` values for built-in numeric types, strings standardised? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] The hash values for strings and integers are absolutely not standardized. 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