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@@ -10,7 +10,7 @@ working across different projects via [VisualMode](https://www.visualmode.dev/).
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For a steady stream of TILs, [sign up for my newsletter](https://visualmode.kit.com/newsletter).
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_1753 TILs and counting..._
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_1755 TILs and counting..._
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See some of the other learning resources I work on:
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@@ -763,6 +763,7 @@ If you've learned something here, support my efforts writing daily TILs by
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- [List The Files Being Loaded By Mise](mise/list-the-files-being-loaded-by-mise.md)
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- [Look In Ruby Version Dotfile](mise/look-in-ruby-version-dotfile.md)
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- [Override Your Project Mise File](mise/override-your-project-mise-file.md)
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- [Pick From Tasks Using Interactive Picker](mise/pick-from-tasks-using-interactive-picker.md)
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- [Preserve Color Output For Task Command](mise/preserve-color-output-for-task-command.md)
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- [Read Existing Dot Env File Into Env Vars](mise/read-existing-dot-env-file-into-env-vars.md)
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- [Run A Command With Specific Tool Version](mise/run-a-command-with-specific-tool-version.md)
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@@ -1052,6 +1053,7 @@ If you've learned something here, support my efforts writing daily TILs by
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- [Keep A Tally With collections.Counter](python/keep-a-tally-with-collections-counter.md)
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- [Load A File Into The Python REPL](python/load-a-file-into-the-python-repl.md)
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- [Override The Boolean Context Of A Class](python/override-the-boolean-context-of-a-class.md)
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- [Parse Relative Time To datetime Object](python/parse-relative-time-to-datetime-object.md)
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- [Store And Access Immutable Data In A Tuple](python/store-and-access-immutable-data-in-a-tuple.md)
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- [Test A Function With Pytest](python/test-a-function-with-pytest.md)
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- [Use pipx To Install End User Apps](python/use-pipx-to-install-end-user-apps.md)
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@@ -1,8 +1,7 @@
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# Create Umbrella Task For All Test Tasks
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When I was first sketching out the [`mise`
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tasks](https://mise.jdx.dev/tasks/running-tasks.html) for a Rails app, I added
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the following two tasks. One is for running all the `rspec` tests. The Other is
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When I was first sketching out the [`mise` tasks](https://mise.jdx.dev/tasks/running-tasks.html) for a Rails app, I added
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the following two tasks. One is for running all the `rspec` tests. The other is
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for running all the `vitest` (JavaScript) tests.
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```toml
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@@ -49,5 +48,4 @@ Running `mise run test:all` won't execute its own command, but because it
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depends on all other `test:*` tasks, the tests will get run through those
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dependencies.
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This task naming pattern also allows for calling all tests with `mise run
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"test:**"`.
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This task naming pattern also allows for calling all tests with `mise run "test:**"`.
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@@ -0,0 +1,38 @@
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# Pick From Tasks Using Interactive Picker
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In [Add Mise Tasks For Common Workflow
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Commands](https://www.visualmode.dev/add-mise-tasks-for-common-workflow-commands),
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I wrote about a set of tasks I added as shortcuts for connecting to the `rails console` in various environments.
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```toml
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# mise.toml
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[tasks."console:staging"]
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description = "Open a Rails console on staging"
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run = "ssh -t my-app-staging dokku run my-app rails console"
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[tasks."console:prod"]
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description = "Open a Rails console on production"
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run = "ssh -t my-app-prod dokku run my-app rails console"
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```
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When a project is configured with multiple `mise` tasks like this, we can invoke
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`mise run` without any specific arguments and it will prompt you with an
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interactive picker. The picker will populate with all the tasks like so:
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```bash
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❯ mise run
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Tasks
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Select a task to run
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❯ console:prod Open a Rails console on production
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console:staging Open a Rails console on staging
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/
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esc clear filter • enter confirm
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```
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We can navigate between the options with the arrow keys (and if we exit _filter_
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mode by hitting `esc`, then `j/k` also work to move down and up). While in
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_filter_ mode, we can type into the prompt which will filter the list of
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commands down to just the partial matches.
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Once we're targeting the task we want to run, we hit `enter` and the task is
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executed.
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@@ -0,0 +1,62 @@
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# Parse Relative Time To datetime Object
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I was looking for an out-of-the-box solution for parsing natural language,
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relative time strings (e.g. `'33 minutes ago'`) into valid `datetime` objects.
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The best library for this is
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[`dateparser`](https://dateparser.readthedocs.io/en/latest/).
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While it is as easy to use this as _import_ then _parse_:
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```python
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>>> import dateparser
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>>> dateparser.parse('33 minutes ago')
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datetime.datetime(2026, 3, 7, 23, 19, 9, 17855)
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```
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There is more to it if we need to deal with timezones.
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In my use case, I wanted to my `datetime` object to be timezone-aware and I
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wanted to store it in `UTC`.
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As is, the above simple `datetime` object is not `tzaware`, meaning it doesn't
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have any `tzinfo` attached to it.
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```python
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>>> dateparser.parse('33 minutes ago').tzinfo is not None
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False
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```
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We need to pass some additional settings during `parse`.
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```python
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>>> settings = {'RETURN_AS_TIMEZONE_AWARE': True}
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>>> dateparser.parse('33 minutes ago', settings=settings)
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>>> _
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datetime.datetime(2026, 3, 8, 9, 53, 36, 225099, tzinfo=zoneinfo.ZoneInfo(key='America/Chicago'))
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>>> settings['TO_TIMEZONE'] = 'UTC'
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>>> dateparser.parse('33 minutes ago', settings=settings)
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>>> _
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datetime.datetime(2026, 3, 8, 14, 54, 47, 34041, tzinfo=<StaticTzInfo 'UTC'>)
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```
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The first step to getting a `datetime` object that is `tzaware` is to set
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`RETURN_AS_TIMEZONE_AWARE` to `True`. That picks up the locale setting of the
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system it is running on -- in my case, I'm in Chicago.
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I said I wanted to store this as UTC though. That means I need to pass an
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additional setting `TO_TIMEZONE` with a value of `'UTC'` which will translate
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the `datetime` from my local time to UTC -- notice the 5 hour difference from
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`9` to `14`.
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Storing `datetime` details like this with timezone info _as_ UTC is nice because
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it keeps everything consistent at the storage layer and then at the presentation
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layer I can always convert it right back to the local timezone with
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`astimezone`.
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```python
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>>> _.astimezone()
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datetime.datetime(2026, 3, 8, 9, 54, 47, 34041, tzinfo=datetime.timezone(datetime.timedelta(days=-1, seconds=68400), 'CDT'))
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```
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See the [`datetime` docs](https://docs.python.org/3/library/datetime.html) for
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more details.
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