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/sqlite-utils/issues/353#issuecomment-991400016,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991400016,IC_kwDOCGYnMM47F5BQ,9599,2021-12-11T01:10:52Z,2021-12-11T01:11:02Z,OWNER,"This won't be in a release for a little while, but you can install it to try it out using:
pip install https://github.com/simonw/sqlite-utils/archive/ee13f98c2c.zip","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991399782,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991399782,IC_kwDOCGYnMM47F49m,9599,2021-12-11T01:09:37Z,2021-12-11T01:09:37Z,OWNER,"OK, this is implemented. Updated documentation is here: https://sqlite-utils.datasette.io/en/latest/cli.html#converting-data-in-columns","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991381679,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991381679,IC_kwDOCGYnMM47F0iv,9599,2021-12-10T23:58:43Z,2021-12-10T23:59:35Z,OWNER,"I think the fix for this is to change the rules about what code is accepted in both the `-` mode and the literal code string mode: you can pass in a Python expression, OR a fragment that gets turned into a function, OR code that implements its own `def convert(value)` function. So this would work too:
```sh
sqlite-utils convert my.db mytable col1 '
def convert(value):
return value.upper()
'
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991381281,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991381281,IC_kwDOCGYnMM47F0ch,9599,2021-12-10T23:57:26Z,2021-12-10T23:57:26Z,OWNER,"My first attempt at building this looked a little bit strange, because you would end up having a file like this `convert.py`:
```
value = value.upper()
return value
```
Which gets used like this:
cat convert.py | sqlite-utils convert my.db mytable col1 -
But... that `convert.py` code isn't actually valid Python - it's a weird thing where you have a partial snippet of Python code that gets wrapped in a function automatically.
It would be better if you could write `convert.py` as a valid Python file with a function in it, something like this:
```python
def convert(value):
value = value.upper()
return value
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991378346,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991378346,IC_kwDOCGYnMM47Fzuq,9599,2021-12-10T23:48:28Z,2021-12-10T23:48:28Z,OWNER,"One option: allow `CODE` to be a special value of `-` which means ""read from standard input"". It's a tiny bit of a hack but I think it would work here.
If you wanted to replace a column entirely with hyphens you would still be able to do this:
sqlite-utils convert my.db mytable col1 '""-""'","{""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991377288,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991377288,IC_kwDOCGYnMM47FzeI,9599,2021-12-10T23:45:53Z,2021-12-10T23:45:53Z,OWNER,"One challenge here: the current signature looks like this:
```
% sqlite-utils convert --help
Usage: sqlite-utils convert [OPTIONS] DB_PATH TABLE COLUMNS... CODE
```
`CODE` is a positional argument which comes last - and since `COLUMNS` can be one or more items, making `CODE` optional isn't easy.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,
https://github.com/simonw/sqlite-utils/issues/353#issuecomment-991376639,https://api.github.com/repos/simonw/sqlite-utils/issues/353,991376639,IC_kwDOCGYnMM47FzT_,9599,2021-12-10T23:43:45Z,2021-12-10T23:43:45Z,OWNER,"There's a very non-obvious workaround for this at the moment. You can save your code in e.g. a file called` transform.py` - my test one looks like this:
```python
def upper(value):
return value.upper()
```
Then you can run the following to import and use that function:
`PYTHONPATH=. sqlite-utils convert fixtures.db roadside_attractions name 'transform.upper(value)' --import transform`
That `PYTHONPATH=. bit is necessary because otherwise the script won't look in the current directory for that `transform.py` module.
Now that I've written this down, it's obviously bad! I think your suggestion here is a good idea.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1077102934,