html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app https://github.com/simonw/datasette/pull/539#issuecomment-508343497,https://api.github.com/repos/simonw/datasette/issues/539,508343497,MDEyOklzc3VlQ29tbWVudDUwODM0MzQ5Nw==,9599,2019-07-04T05:28:30Z,2019-07-04T05:28:30Z,OWNER,This seems to have fixed the weird errors: https://github.com/simonw/datasette/pull/539/commits/fd6164b03ebe450a9a00df2e5be2dc7bbfbd9a3f,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",464040911, https://github.com/simonw/datasette/pull/539#issuecomment-508343359,https://api.github.com/repos/simonw/datasette/issues/539,508343359,MDEyOklzc3VlQ29tbWVudDUwODM0MzM1OQ==,9599,2019-07-04T05:27:47Z,2019-07-04T05:27:47Z,OWNER,"For some reason the way I have set these tests up keeps throwing [variations on this error](https://travis-ci.org/simonw/datasette/builds/554055865): ``` self = @contextlib.contextmanager def isolated_filesystem(self): """"""A context manager that creates a temporary folder and changes the current working directory to it for isolated filesystem tests. """""" > cwd = os.getcwd() E FileNotFoundError: [Errno 2] No such file or directory /home/travis/virtualenv/python3.6.7/lib/python3.6/site-packages/click/testing.py:364: FileNotFoundError ``` After much trial and error the cause appears to be the way I was trying to create custom metadata like so: ```python def test_plugin_config_env(): os.environ[""FOO_ENV""] = ""FROM_ENVIRONMENT"" for client in make_app_client( metadata={""plugins"": {""env-plugin"": {""foo"": {""$env"": ""FOO_ENV""}}}} ): assert {""foo"": ""FROM_ENVIRONMENT""} == client.ds.plugin_config(""env-plugin"") del os.environ[""FOO_ENV""] ``` It wasnt't the `os.environ` manipulation OR the `tempfile` stuff - it appeared to be the usage of `make_app_client()`. When I stopped trying to do that (and moved my test configuration into `METADATA` in the `fixtures.py` module) the tests started passing again.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",464040911,