reveriee

Turn your idea into a published Python package. Create the project files with one command, then check everything before you upload.

Publishing your first Python package means getting a lot of small files and settings right. One wrong detail, like a version that already exists or a README full of stray symbols, only shows up after you upload, and a published version can never be changed. reverie sets up the boring parts correctly and warns you about the common mistakes first.

See it in action

Install

pip install reveriee

The package on PyPI is called reveriee, but the command you run is still reverie.

Create a new package

reverie new my-tool

reverie checks that the name is free on PyPI, asks for a one-line description and your name, and creates a ready-to-install project:

my-tool/
  pyproject.toml
  README.md
  LICENSE
  .gitignore
  my_tool/
    __init__.py
    __main__.py
    cli.py

The new project already installs and runs and prints a hello message. Open cli.py and replace the hello message with your own idea.

Check before you upload

Inside your project folder, run:

reverie check

or point it at a folder:

reverie check my-tool

It looks for the mistakes that most often hurt first-time publishers:

It looks for	Why it matters
A version that is already on PyPI	A version can never be uploaded twice
Old files left in the dist folder	The upload would send them too
Stray backslashes, or leftover web page codes, in the README	Your PyPI page would look broken
Images in the README that PyPI cannot see	They would show as broken pictures
A missing LICENSE file	The build fails, or people will not use your package
A missing code folder or init.py	Your code would not be in the package
A command that points to code that does not exist	The command would fail after install
A missing main.py	python -m your_tool would not work
Version numbers that do not match	Easy to forget when you raise the version

Every problem comes with a plain-language fix. Add --offline to skip the PyPI lookup.

Deep check (new in 0.2.0)

Because a published version can never be changed, run the thorough check right before you upload:

pip install build twine
reverie deepcheck

It does everything reverie check does, and then goes much further:

It does	Why it matters
Reads every Python file	A typing mistake would break your package
Looks for passwords, keys and tokens in your files	A leaked key can be used by anyone
Looks for leftover starter text	So you do not publish "Hello from..."
Builds your package from a clean copy	Finds build problems before PyPI does
Runs twine check	Makes sure your PyPI page will work
Looks inside the built files	Makes sure your code and LICENSE are really included
Installs it in a brand-new empty environment	Proves it works for other people, not only on your laptop

If everything is fine it says so. If not, it says exactly what is wrong and how to fix it. reverie never runs your program itself, it only checks that it can be loaded.

Options: --offline skips the PyPI lookup, --no-install skips the clean install test, --force runs the build tests even when the basic checks found problems.

Publish (new in 0.3.0)

You need a free PyPI account and an API token. Then, inside your project folder:

pip install build twine
reverie publish

reverie does the whole job for you, in three steps:

1. Runs the deep check. If anything is wrong, it stops and nothing is uploaded.
2. Builds fresh files in a temporary place, so old files can never be sent by accident.
3. Asks you to type the version number to confirm, asks for your token, and uploads.

Your token is typed with nothing showing on screen, is never saved, and is never printed.

Options: --test uploads to TestPyPI, a practice website (it needs its own account and token), and --dry-run does everything except the upload.

If the upload fails, reverie explains the reason in plain language, for example a wrong token or a version that already exists.

You can still publish by hand if you prefer:

python -m build
twine check dist/*
twine upload dist/*

Delete any old dist folder before you build.

Command not recognised?

On some Windows computers the reverie command is not found right after installing, because Windows does not know where pip put it. Start it through Python instead:

python -m reverie check

If pip says "defaulting to user installation" or "not writeable" while installing, that is normal and harmless.

Good to know

• reverie does not write your program for you. It sets up the packaging, and the idea is yours.
• It does not upload anything. You do that yourself with twine, after the check.
• Package names use lowercase letters, numbers and hyphens, like my-tool.
• The name check and the version check need an internet connection.

License

MIT