direnv | unclutter your .profile | Command Line Interface library

You can use environment variables which you can get via os.environ['KEY'].
The same code will work on both local development and on Heroku.

On Heroku define these variables using ConfigVars heroku config:set KEY=val while locally (on Windows for example) define the same variables in an .env file (use dotenv to load them). The .env file is never committed with the source code.

Every block type has a corresponding 'native' data type for the data it expects to work with - for the simpler blocks, this data type is what you'd expect (e.g. a string for CharBlock, an Image instance for ImageChooserBlock) but for a few of the more complex ones, there's a custom type defined:

• for RichTextBlock, the native type is wagtail.core.rich_text.RichText (which behaves similarly to a string, but also has a source property where e.g. page IDs in page links are kept intact)
• for StreamBlock, the native type is wagtail.core.blocks.StreamValue (a sequence type, where each item is a StreamValue with block_type and value properties).

The render method will generally be quite forgiving if you use the wrong types (such as a string for RichTextBlock or a list of dicts for StreamBlock), since it's really just invoking your own template code. The clean method will be more picky, since it's running Python logic specific to each block.

Unfortunately the correct types to use for each block aren't really formally documented, and some of them are quite fiddly to construct (e.g. a StructValue needs to be passed a reference to the corresponding StructBlock) - outside of test code, there isn't much need to create these objects from scratch, because the data will usually be coming from some outside source instead (e.g. a form submission or the database), and each block will be responsible for converting that to its native type.

With that in mind, I'd recommend that you construct your data by piggybacking on the to_python method, which converts the JSON representation as stored in the database (consisting of just simple Python data types - integers, strings, lists, dicts) into the native data types:

Error between seat & keyboard:

I found a solution that works taking from https://github.com/grpc/grpc/issues/25082 with more detail and the removal of certain unnecessary steps. Note that this only works on python version 3.9 as of this post date.

First, install pyenv and pyenv-virtualenv.

fish doesn't add hidden files to the list of completions unless the token being completed already starts with a '.'.

You should be able to write a custom completion that does what you want, but unfortunately a long-standing bug makes that impossible.

Not sure if I should be adding the coercion to $base or $derived

Neither. You should be returning it.

direnv export bash is using some bash-only syntax; specifically, ANSI C strings:

This is a known issue. To fix the RSA package that causes the build failure, create a file Config/nix/haskell-packages/RSA.nix and paste in the following content:

Well, it's not exactly a solution to your problem but rather an alternate (tested) way.
What you can do is just created a bash operator and call sleep. It will only take a thread I believe as the sleep command on terminal does.