{"action":"created","issue":{"url":"https://api.github.com/repos/CoolProp/CoolProp/issues/617","labels_url":"https://api.github.com/repos/CoolProp/CoolProp/issues/617/labels{/name}","comments_url":"https://api.github.com/repos/CoolProp/CoolProp/issues/617/comments","events_url":"https://api.github.com/repos/CoolProp/CoolProp/issues/617/events","html_url":"https://github.com/CoolProp/CoolProp/issues/617","id":70642695,"number":617,"title":"TTSE throws exception for fluid constants","user":{"login":"jowr","id":769593,"avatar_url":"https://avatars.githubusercontent.com/u/769593?v=3","gravatar_id":"","url":"https://api.github.com/users/jowr","html_url":"https://github.com/jowr","followers_url":"https://api.github.com/users/jowr/followers","following_url":"https://api.github.com/users/jowr/following{/other_user}","gists_url":"https://api.github.com/users/jowr/gists{/gist_id}","starred_url":"https://api.github.com/users/jowr/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jowr/subscriptions","organizations_url":"https://api.github.com/users/jowr/orgs","repos_url":"https://api.github.com/users/jowr/repos","events_url":"https://api.github.com/users/jowr/events{/privacy}","received_events_url":"https://api.github.com/users/jowr/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":3,"created_at":"2015-04-24T09:46:01Z","updated_at":"2015-04-24T17:46:41Z","closed_at":null,"body":"A simple call to `PropsSI(\"Tcrit\",\"\",0,\"\",0,\"TTSE&HEOS::R134a\")` returns\r\n```\r\nLoading table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/single_phase_logph.bin.z\r\nLoaded table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/single_phase_logph.bin.z in 0.157 sec.\r\nLoading table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/single_phase_logpT.bin.z\r\nLoaded table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/single_phase_logpT.bin.z in 0.194 sec.\r\nLoading table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/pure_saturation.bin.z\r\nLoaded table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/pure_saturation.bin.z in 0.01 sec.\r\nLoading table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/phase_envelope.bin.z\r\nLoaded table: C:\\Users\\jowr/.CoolProp/Tables/HelmholtzEOSBackend(R134a[1.0000000000])/phase_envelope.bin.z in 0.007 sec.\r\n---------------------------------------------------------------------------\r\nValueError                                Traceback (most recent call last)\r\n<ipython-input-7-17924934246c> in <module>()\r\n----> 1 PropsSI(\"Tcrit\",\"\",0,\"\",0,\"TTSE&HEOS::R134a\")\r\nCoolProp\\CoolProp.pyx in CoolProp.CoolProp.PropsSI (CoolProp\\CoolProp.cpp:24352)()\r\nCoolProp\\CoolProp.pyx in CoolProp.CoolProp.PropsSI (CoolProp\\CoolProp.cpp:24153)()\r\nCoolProp\\CoolProp.pyx in CoolProp.CoolProp.__Props_err2 (CoolProp\\CoolProp.cpp:22478)()\r\nValueError: No outputs were able to be calculated : PropsSI(\"Tcrit\",\"\",0,\"\",0,\"TTSE&HEOS::R134a\")\r\n```"},"comment":{"url":"https://api.github.com/repos/CoolProp/CoolProp/issues/comments/96010693","html_url":"https://github.com/CoolProp/CoolProp/issues/617#issuecomment-96010693","issue_url":"https://api.github.com/repos/CoolProp/CoolProp/issues/617","id":96010693,"user":{"login":"ibell","id":1859947,"avatar_url":"https://avatars.githubusercontent.com/u/1859947?v=3","gravatar_id":"","url":"https://api.github.com/users/ibell","html_url":"https://github.com/ibell","followers_url":"https://api.github.com/users/ibell/followers","following_url":"https://api.github.com/users/ibell/following{/other_user}","gists_url":"https://api.github.com/users/ibell/gists{/gist_id}","starred_url":"https://api.github.com/users/ibell/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ibell/subscriptions","organizations_url":"https://api.github.com/users/ibell/orgs","repos_url":"https://api.github.com/users/ibell/repos","events_url":"https://api.github.com/users/ibell/events{/privacy}","received_events_url":"https://api.github.com/users/ibell/received_events","type":"User","site_admin":false},"created_at":"2015-04-24T17:46:41Z","updated_at":"2015-04-24T17:46:41Z","body":"Yeah I thought about that, but I can't come up with a good way of\ndetermining whether the backend is allowed to be used with PropsSI.  Any\nideas?\n\nOn Fri, Apr 24, 2015 at 11:44 AM, Jorrit Wronski <notifications@github.com>\nwrote:\n\n> Yes, I know I shouldn't do this [image: :wink:] ... but the error message\n> could be more helpful though. We might even want to kill the whole thing\n> saying something like *\"Do not use PropsSI with tabular backends, go read\n> the docs.\"* or a similar message.\n>\n> —\n> Reply to this email directly or view it on GitHub\n> <https://github.com/CoolProp/CoolProp/issues/617#issuecomment-96010166>.\n>\n"}}