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
781262510,MDU6SXNzdWU3ODEyNjI1MTA=,1181,"Certain database names results in 404: ""Database not found: None""",1470389,closed,0,,6346396,4,2021-01-07T12:01:16Z,2021-12-21T18:25:15Z,2021-01-25T05:13:19Z,NONE,,"I have a file named `test-database (1).sqlite`. When requesting the home route `/`, I see datasette is able to read it correctly:

<img width=""409"" alt=""Screenshot 2021-01-07 at 12 54 46"" src=""https://user-images.githubusercontent.com/1470389/103889964-9442b800-50e7-11eb-9548-fbf10ed3b1ea.png"">

However, if I click any of the links, datasette replies with: `Error 404 Database not found: None`

It seems the hash is crucial, as renaming the file to `database (1).sqlite` makes the error go away.

This lines checks for a single dash:
https://github.com/simonw/datasette/blob/97fb10c17dd007a275ab743742e93e932335ad67/datasette/views/base.py#L184

```
$ datasette test-database\ \(1\).sqlite 
INFO:     Started server process [68314]
INFO:     Waiting for application startup.
INFO:     Application startup complete.
INFO:     Uvicorn running on http://127.0.0.1:8001 (Press CTRL+C to quit)
INFO:     127.0.0.1:54043 - ""GET /favicon.ico HTTP/1.1"" 200 OK
INFO:     127.0.0.1:54043 - ""GET / HTTP/1.1"" 200 OK
...
INFO:     127.0.0.1:54044 - ""GET /favicon.ico HTTP/1.1"" 200 OK
INFO:     127.0.0.1:54044 - ""GET /test-database (1) HTTP/1.1"" 404 Not Found

```
Version:
```
$ datasette --version
datasette, version 0.53
```
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