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
1931794126,I_kwDOBm6k_c5zJNbO,2198,--load-extension=spatialite not working with Windows,363004,open,0,,,0,2023-10-08T12:50:22Z,2023-10-08T12:50:22Z,,NONE,,"Using each of
`python -m datasette counties.db -m metadata.yml --load-extension=SpatiaLite`

and 

`python -m datasette counties.db --load-extension=""C:\Windows\System32\mod_spatialite.dll""`

and

`python -m datasette counties.db --load-extension=C:\Windows\System32\mod_spatialite.dll`

I got the error:

```
  File ""C:\Users\m3n7es\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\datasette\database.py"", line 209, in in_thread
    self.ds._prepare_connection(conn, self.name)
  File ""C:\Users\m3n7es\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.11_qbz5n2kfra8p0\LocalCache\local-packages\Python311\site-packages\datasette\app.py"", line 596, in _prepare_connection
    conn.execute(""SELECT load_extension(?, ?)"", [path, entrypoint])
sqlite3.OperationalError: The specified module could not be found.

```

I finally tried modifying the code in app.py to read:

```
    def _prepare_connection(self, conn, database):
        conn.row_factory = sqlite3.Row
        conn.text_factory = lambda x: str(x, ""utf-8"", ""replace"")
        if self.sqlite_extensions:
            conn.enable_load_extension(True)
            for extension in self.sqlite_extensions:
                # ""extension"" is either a string path to the extension
                # or a 2-item tuple that specifies which entrypoint to load.
                #if isinstance(extension, tuple):
                #    path, entrypoint = extension
                #    conn.execute(""SELECT load_extension(?, ?)"", [path, entrypoint])
                #else:
                conn.execute(""SELECT load_extension('C:\Windows\System32\mod_spatialite.dll')"")

```
At which point the counties example worked. 

Is there a correct way to install/use the extension on Windows? My method will cause issues if there's a second extension to be used.

On an unrelated note, my next step is to figure out how to write a query across the two loaded databases supplied from the command line:
`python -m datasette rm_toucans_23_10_07.db counties.db -m metadata.yml --load-extension=SpatiaLite`



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