id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,pull_request,body,repo,type,active_lock_reason,performed_via_github_app,reactions,draft,state_reason
628156527,MDU6SXNzdWU2MjgxNTY1Mjc=,789,Mechanism for enabling pluggy tracing,9599,open,0,,,2,2020-06-01T05:10:14Z,2020-06-01T05:11:03Z,,OWNER,,"Could be useful for debugging plugins: https://pluggy.readthedocs.io/en/latest/#call-tracing

I tried this out by adding these two lines in `plugins.py`:
```python
pm = pluggy.PluginManager(""datasette"")
pm.add_hookspecs(hookspecs)
# Added these:
pm.trace.root.setwriter(print)
pm.enable_tracing()
```
Output looked something like this:
```
INFO:     127.0.0.1:52724 - ""GET /-/-/static/app.css HTTP/1.1"" 404 Not Found
  actor_from_request [hook]
      datasette: <datasette.app.Datasette object at 0x106277ad0>
      request: <datasette.utils.asgi.Request object at 0x106550a50>

  finish actor_from_request --> [] [hook]

  extra_body_script [hook]
      template: show_json.html
      database: None
      table: None
      view_name: json_data
      datasette: <datasette.app.Datasette object at 0x106277ad0>

  finish extra_body_script --> [] [hook]

  extra_template_vars [hook]
      template: show_json.html
      database: None
      table: None
      view_name: json_data
      request: <datasette.utils.asgi.Request object at 0x1065504d0>
      datasette: <datasette.app.Datasette object at 0x106277ad0>

  finish extra_template_vars --> [] [hook]

  extra_css_urls [hook]
      template: show_json.html
      database: None
      table: None
      datasette: <datasette.app.Datasette object at 0x106277ad0>

  finish extra_css_urls --> [] [hook]

  extra_js_urls [hook]
      template: show_json.html
      database: None
      table: None
      datasette: <datasette.app.Datasette object at 0x106277ad0>

  finish extra_js_urls --> [] [hook]

INFO:     127.0.0.1:52724 - ""GET /-/actor HTTP/1.1"" 200 OK
  actor_from_request [hook]
      datasette: <datasette.app.Datasette object at 0x106277ad0>
      request: <datasette.utils.asgi.Request object at 0x1065500d0>

  finish actor_from_request --> [] [hook]
```",107914493,issue,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/789/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",,
627836898,MDExOlB1bGxSZXF1ZXN0NDI1NTMxMjA1,783,Authentication: plugin hooks plus default --root auth mechanism,9599,closed,0,,,0,2020-05-30T22:25:47Z,2020-06-01T01:16:44Z,2020-06-01T01:16:43Z,OWNER,simonw/datasette/pulls/783,See #699,107914493,pull,,,"{""url"": ""https://api.github.com/repos/simonw/datasette/issues/783/reactions"", ""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",0,