{"action":"created","issue":{"url":"https://api.github.com/repos/sympy/sympy/issues/14691","repository_url":"https://api.github.com/repos/sympy/sympy","labels_url":"https://api.github.com/repos/sympy/sympy/issues/14691/labels{/name}","comments_url":"https://api.github.com/repos/sympy/sympy/issues/14691/comments","events_url":"https://api.github.com/repos/sympy/sympy/issues/14691/events","html_url":"https://github.com/sympy/sympy/pull/14691","id":319798946,"number":14691,"title":"lambdify: Improved speed of generated code when unpacking arguments","user":{"login":"caley","id":5119078,"avatar_url":"https://avatars2.githubusercontent.com/u/5119078?v=4","gravatar_id":"","url":"https://api.github.com/users/caley","html_url":"https://github.com/caley","followers_url":"https://api.github.com/users/caley/followers","following_url":"https://api.github.com/users/caley/following{/other_user}","gists_url":"https://api.github.com/users/caley/gists{/gist_id}","starred_url":"https://api.github.com/users/caley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/caley/subscriptions","organizations_url":"https://api.github.com/users/caley/orgs","repos_url":"https://api.github.com/users/caley/repos","events_url":"https://api.github.com/users/caley/events{/privacy}","received_events_url":"https://api.github.com/users/caley/received_events","type":"User","site_admin":false},"labels":[{"id":200830774,"url":"https://api.github.com/repos/sympy/sympy/labels/utilities.lambdify","name":"utilities.lambdify","color":"0000FF","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":1,"created_at":"2018-05-03T06:18:08Z","updated_at":"2018-05-04T01:39:48Z","closed_at":null,"author_association":"NONE","pull_request":{"url":"https://api.github.com/repos/sympy/sympy/pulls/14691","html_url":"https://github.com/sympy/sympy/pull/14691","diff_url":"https://github.com/sympy/sympy/pull/14691.diff","patch_url":"https://github.com/sympy/sympy/pull/14691.patch"},"body":"\r\n<!-- Your title above should be a short description of what\r\nwas changed. Do not include the issue number in the title. -->\r\n\r\n#### References to other Issues or PRs\r\nFixes  #14654\r\n\r\n#### Brief description of what is fixed or changed\r\n\r\nImprove performance of lambdify generated code when given arguments that\r\nrequire unpacking.  Changes lambdastr so that the argument unpacking is done\r\nat code-generation-time instead of at run-time.\r\n\r\n#### Other comments\r\n"},"comment":{"url":"https://api.github.com/repos/sympy/sympy/issues/comments/386485793","html_url":"https://github.com/sympy/sympy/pull/14691#issuecomment-386485793","issue_url":"https://api.github.com/repos/sympy/sympy/issues/14691","id":386485793,"user":{"login":"caley","id":5119078,"avatar_url":"https://avatars2.githubusercontent.com/u/5119078?v=4","gravatar_id":"","url":"https://api.github.com/users/caley","html_url":"https://github.com/caley","followers_url":"https://api.github.com/users/caley/followers","following_url":"https://api.github.com/users/caley/following{/other_user}","gists_url":"https://api.github.com/users/caley/gists{/gist_id}","starred_url":"https://api.github.com/users/caley/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/caley/subscriptions","organizations_url":"https://api.github.com/users/caley/orgs","repos_url":"https://api.github.com/users/caley/repos","events_url":"https://api.github.com/users/caley/events{/privacy}","received_events_url":"https://api.github.com/users/caley/received_events","type":"User","site_admin":false},"created_at":"2018-05-04T01:39:48Z","updated_at":"2018-05-04T01:39:48Z","author_association":"NONE","body":"There is already a test for nested arguments - test_issue_2790() in test_lambdify.py (for #2790).  Is that sufficient?  As this is a performance issue, is there a way to add performance tests?  i.e. the benchmarks run by @moorepants  as in #14671?"}}
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