issue_comments: 643685669
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html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | issue | performed_via_github_app |
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https://github.com/simonw/datasette/issues/846#issuecomment-643685669 | https://api.github.com/repos/simonw/datasette/issues/846 | 643685669 | MDEyOklzc3VlQ29tbWVudDY0MzY4NTY2OQ== | 9599 | 2020-06-13T22:24:22Z | 2020-06-13T22:24:22Z | OWNER | I tried this experiment: ```python import sqlite3, psutil def show_things(): conn = sqlite3.connect("fixtures.db") tables = [r[0] for r in conn.execute("select * from sqlite_master").fetchall()] return tables print(psutil.Process().open_files()) print(show_things()) print(psutil.Process().open_files()) ``` To see if the connection would be automatically released when the `conn` variable was garbage collected at the end of the function... and it was correctly released - the two calls to `open_files()` showed that the file did not remain open. Likewise: ``` In [11]: conn = sqlite3.connect("fixtures.db") In [12]: psutil.Process().open_files() Out[12]: [popenfile(path='/Users/simon/.ipython/profile_default/history.sqlite', fd=4), popenfile(path='/Users/simon/.ipython/profile_default/history.sqlite', fd=5), popenfile(path='/Users/simon/Dropbox/Development/datasette/fixtures.db', fd=12)] In [13]: del conn In [14]: psutil.Process().open_files() Out[14]: [popenfile(path='/Users/simon/.ipython/profile_default/history.sqlite', fd=4), popenfile(path='/Users/simon/.ipython/profile_default/history.sqlite', fd=5)] ``` So presumably there's something about the way my pytest fixtures work that's causing the many different `Datasette()` instances and their underlying SQLite connections that I create not to be cleaned up later. | {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} | 638241779 |