Add Try Out The Latest Version Of Ruff as a Python TIL

README.md

@@ -10,7 +10,7 @@ working across different projects via [VisualMode](https://www.visualmode.dev/).
 
 For a steady stream of TILs, [sign up for my newsletter](https://visualmode.kit.com/newsletter).
 
-_1836 TILs and counting..._
+_1838 TILs and counting..._
 
 See some of the other learning resources I work on:
 
@@ -472,6 +472,7 @@ If you've learned something here, support my efforts writing daily TILs by
 ### GitHub
 
 - [Access Your GitHub Profile Photo](github/access-your-github-profile-photo.md)
+- [Create And Push To New Repo From CLI](github/create-and-push-to-new-repo-from-cli.md)
 - [List PRs Awaiting Your Review](github/list-prs-awaiting-your-review.md)
 - [Open A PR To An Unforked Repo](github/open-a-pr-to-an-unforked-repo.md)
 - [Open File To Specific Line In Browser](github/open-file-to-specific-line-in-browser.md)
@@ -1113,6 +1114,7 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Store And Access Immutable Data In A Tuple](python/store-and-access-immutable-data-in-a-tuple.md)
 - [Strictly Separate Positional And Keyword Arguments](python/strictly-separate-positional-and-keyword-arguments.md)
 - [Test A Function With Pytest](python/test-a-function-with-pytest.md)
+- [Try Out The Latest Version Of Ruff](python/try-out-the-latest-version-of-ruff.md)
 - [Turn Method Into Cached Property On Class Instance](python/turn-method-into-cached-property-on-class-instance.md)
 - [Use pipx To Install End User Apps](python/use-pipx-to-install-end-user-apps.md)
 - [Use `__post_init__` For `dataclass` Validations](python/use-post-init-for-dataclass-validations.md)

github/create-and-push-to-new-repo-from-cli.md

@@ -0,0 +1,45 @@
+# Create And Push To New Repo From CLI
+
+I figured there must be a good way to create a new repo in GitHub using the `gh`
+CLI based on a local git repo. I spend so much time in existing git projects
+that already have GitHub repos that I haven't had the chance to figure this out.
+Until now.
+
+I just finished a first pass on a fresh project for [a GitHub profile
+README](https://github.com/jbranchaud/jbranchaud). It was time to put it up on
+GitHub and see if worked. Instead of going through the GitHub web UI to create
+this new repo, I found the `gh repo create` subcommand. I then asked Claude what
+flags I needed for my use case. The recommendation was as follows:
+
+```bash
+❯ gh repo create --public --source=. --remote=origin --push
+✓ Created repository jbranchaud/jbranchaud on github.com
+  https://github.com/jbranchaud/jbranchaud
+✓ Added remote https://github.com/jbranchaud/jbranchaud.git
+Enumerating objects: 11, done.
+Counting objects: 100% (11/11), done.
+Delta compression using up to 16 threads
+Compressing objects: 100% (6/6), done.
+Writing objects: 100% (11/11), 4.21 KiB | 4.21 MiB/s, done.
+Total 11 (delta 0), reused 0 (delta 0), pack-reused 0 (from 0)
+To https://github.com/jbranchaud/jbranchaud.git
+ * [new branch]      HEAD -> main
+branch 'main' set up to track 'origin/main' by rebasing.
+✓ Pushed commits to https://github.com/jbranchaud/jbranchaud.git
+```
+
+This created the repo on GitHub for my authenticated profile (`jbranchaud`)
+using the name of the current directory (`jbranchaud`). It then setup the
+`origin` remote to point to that repo on GitHub. It then pushed the current
+state of `main` up to the remote.
+
+- `--public` configures the created repo to be a public, rather than private,
+one.
+- `--source=.` tells the command to run for the current directory (I ran this
+from the root of this new project)
+- `--remote=origin` tells it what the remote should be called, though `origin`
+is the default, so this wasn't strictly necessary
+- `--push` tells the command to push to the remote once it is created and
+configured
+
+See `gh repo create --help` for more details and examples.

python/try-out-the-latest-version-of-ruff.md

@@ -0,0 +1,69 @@
+# Try Out The Latest Version Of Ruff
+
+I have [a Python project](https://github.com/jbranchaud/py-vmt) using
+[`ruff`](https://github.com/astral-sh/ruff) pinned to version `0.15.20`.
+
+```toml
+[dependency-groups]
+dev = [
+    "basedpyright>=1.39.9",
+    "freezegun>=1.5.5",
+    "pytest>=9.0.2",
+    "ruff>=0.15.20",
+    "types-dateparser>=1.3.0.20260211",
+]
+```
+
+All source files are in alignment with the enabled `ruff` rules, so all checks
+pass.
+
+[Simon Willison just posted](https://simonwillison.net/2026/Jul/25/ruff/) about
+a new version of `ruff` (`v0.16.0`) dropping that enables a TON of new rules. He
+mentioned running it against some of his biggest projects and getting a bunch of
+errors.
+
+I was curious to see how my project would fare, so I ran the
+[`uvx`](https://docs.astral.sh/uv/guides/tools/) command that Simon recommended
+in his post.
+
+```bash
+❯ uvx ruff@latest check .
+I001 [*] Import block is un-sorted or un-formatted
+ --> defaults.py:1:1
+  |
+1 | / from datetime import datetime, timezone
+2 | | import time
+  | |___________^
+  |
+help: Organize imports
+  |
+1 + import time
+2 | from datetime import datetime, timezone
+  - import time
+3 |
+  |
+
+UP017 [*] Use `datetime.UTC` alias
+  --> defaults.py:11:36
+
+...
+
+Found 48 errors.
+[*] 41 fixable with the `--fix` option.
+```
+
+Even this small project of mine has 48 errors. Luckily 41 of them can be
+automatically fixed by `ruff`.
+
+It is the `@latest` tag that tells
+[`uvx`](https://docs.astral.sh/uv/guides/tools/) to find and run the latest
+version of `ruff` which currently happens to be `0.16.0`. I can also reliably
+point to a specific version like so:
+
+```bash
+❯ uvx ruff@0.15.14 check .
+All checks passed!
+```
+
+Here is [a listing](https://github.com/astral-sh/ruff/tags) of all tagged `ruff`
+versions.