blog: update post

streamline installation instructions

_posts/2021-06-28-how-to-add-python-installed-via-homebrew-to-pyenv-versions.md

@@ -10,51 +10,70 @@ tags:
 - tutorial
 - macos
 date: 2021-06-28 13:10 -0700
-last-updated: 2021-07-01 20:07 -0700
+last-updated: 2021-08-31 08:13 -0700
 ---
 Hello, friends!
 
 As I have [mentioned before]({{ site.url }}/2020/09/21/working-with-pyenv-on-macos/), I am using [`pyenv`](https://github.com/pyenv/pyenv) to manage multiple Python installations, but since I installed some Hombrew formulae that depend on [`[email protected]`](https://formulae.brew.sh/formula/[email protected]) I decided to uninstall Python 3 installed via `pyenv` and use the one from Homebrew.
 
 So here I will share a quick guide on how I accomplished that.
 
-1. If you've installed Python `3.9.5` via `pyenv`, uninstall it by running `uninstall` and then `rehash`
+1. If you've installed the latest Python `3.9` version via `pyenv`, uninstall it by running `uninstall` and then `rehash`
 
     ```bash
-    $ pyenv uninstall 3.9.5
+    $ pyenv uninstall 3.9.X
     $ pyenv rehash
     ```
 
 1. Create a `symlink` at `~/.pyenv/versions`
 
     ```bash
     $ cd ~/.pyenv/versions
-    $ ln -sfv /usr/local/Cellar/[email protected]/3.9.5/Frameworks/Python.framework/Versions/3.9 3.9.5
+    $ ln -sfv "$(brew --prefix [email protected])" 3.9
     $ ls -al
     total 0
-    drwxr-xr-x  5 thecesrom  staff   160 Jun  8 11:08 .
-    drwxr-xr-x  6 thecesrom  staff   192 Jun  8 10:58 ..
-    drwxr-xr-x  7 thecesrom  staff   224 Jun  8 10:58 2.7.18
-    lrwxr-xr-x  1 thecesrom  staff    75 Jun  8 11:08 3.9.5 -> /usr/local/Cellar/python@3.9/3.9.5/Frameworks/Python.framework/Versions/3.9
+    drwxr-xr-x  4 thecesrom  staff  128 Aug 31 07:51 .
+    drwxr-xr-x  6 thecesrom  staff  192 Jun  8 10:58 ..
+    drwxr-xr-x  6 thecesrom  staff  192 Aug 31 07:48 2.7.18
+    lrwxr-xr-x  1 thecesrom  staff   25 Aug 31 07:51 3.9 -> /usr/local/opt/[email protected]
     ```
 
-    {: .box-note}
-    I chose `/usr/local/Cellar/[email protected]/3.9.5/Frameworks/Python.framework/Versions/3.9` instead of `/usr/local/Cellar/[email protected]/3.9.5` because I wanted to include the same folders (`bin`, `include`, `lib`, `share`) as my other Python installation (`2.7.18`), which I installed via `pyenv`.
+1. If you wish to also include the `include` directory, run the following
+
+    ```bash
+    $ cd "$(brew --prefix [email protected])"
+    $ ln -sfv Frameworks/Python.framework/Versions/3.9/include/python3.9 include
+    include -> Frameworks/Python.framework/Versions/3.9/include/python3.9
+    $ ls -al
+    total 64
+    drwxr-xr-x  14 thecesrom  staff    448 Aug 31 07:43 .
+    drwxr-xr-x   3 thecesrom  staff     96 Jul  3 09:36 ..
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 .brew
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 Frameworks
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 IDLE 3.app
+    -rw-r--r--   1 thecesrom  staff   3770 Jul  3 09:36 INSTALL_RECEIPT.json
+    -rw-r--r--   1 thecesrom  staff  13925 Jun 28 01:57 LICENSE
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 Python Launcher 3.app
+    -rw-r--r--   1 thecesrom  staff  10140 Jun 28 01:57 README.rst
+    drwxr-xr-x  19 thecesrom  staff    608 Aug 31 07:50 bin
+    lrwxr-xr-x   1 thecesrom  staff     58 Aug 31 07:43 include -> Frameworks/Python.framework/Versions/3.9/include/python3.9
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 lib
+    drwxr-xr-x   4 thecesrom  staff    128 Jun 28 01:57 libexec
+    drwxr-xr-x   3 thecesrom  staff     96 Jun 28 01:57 share
+    ```
 
 1. Create `symlinks` for `idle`, `pip`, `python` and `wheel` at the following location:
 
     ```bash
-    $ cd /usr/local/Cellar/[email protected]/3.9.5/Frameworks/Python.framework/Versions/3.9/bin
-    $ ln -sfv idle3.9 idle
-    idle -> idle3.9
-    $ ln -sfv /usr/local/Cellar/[email protected]/3.9.5/bin/pip3 pip 
-    pip -> /usr/local/Cellar/[email protected]/3.9.5/bin/pip3
-    $ ln -sfv /usr/local/Cellar/[email protected]/3.9.5/bin/pip3 pip3
-    pip3 -> /usr/local/Cellar/[email protected]/3.9.5/bin/pip3
+    $ cd "$(brew --prefix [email protected])/bin"
+    $ ln -sfv idle3 idle
+    idle -> idle3
+    $ ln -sfv pip3 pip 
+    pip -> pip3
     $ ln -sfv python3 python
     python -> python3
-    $ ln -sfv /usr/local/Cellar/[email protected]/3.9.5/bin/wheel3 wheel
-    wheel -> /usr/local/Cellar/[email protected]/3.9.5/bin/wheel3
+    $ ln -sfv wheel3 wheel
+    wheel -> wheel3
     ```
 
 1. Once that's done, run `pyenv rehash` as recommended by `pyenv` whenever you install new versions
@@ -69,13 +88,13 @@ So here I will share a quick guide on how I accomplished that.
     $ pyenv versions
     * system (set by /Users/thecesrom/.pyenv/version)
       2.7.18
-      3.9.5
+      3.9
     ```
 
-1. If you want to set `3.9.5` as global, just run by running 
+1. If you want to set `3.9` as global, just run by running 
 
     ```bash
-    $ pyenv global 3.9.5
+    $ pyenv global 3.9
     ```
 
 1. Verify your selection by running
@@ -84,14 +103,14 @@ So here I will share a quick guide on how I accomplished that.
     $ pyenv versions
       system
       2.7.18
-    * 3.9.5 (set by /Users/thecesrom/.pyenv/version)
+    * 3.9 (set by /Users/thecesrom/.pyenv/version)
     ```
 
 1. And now when I run `python --version` I get the following output:
 
     ```bash
     $ python --version
-    Python 3.9.5
+    Python 3.9.6
     ```
 
 And that's it! You've done it!