Maybe not use codecov, but definitely have the ability to measure the code coverage on the command line.

• How to install the package using pip
• How to install the package using pipenv
• How to contribute and update the code

https://click.palletsprojects.com/en/7.x/api/?highlight=echo#exceptions

Click provides lots of goodies like help texts and warnings and stuff. Let's use that!

1. Check URLs.
2. Print URLs.
3. Don't download anything, and don't make any request calls.

Use e.g. Travis CI to set up automatic testing etc.

• running pytest
• … for multiple Python versions (using tox?)
• reporting of code coverage (see #10)
• build status badge

The bot created this issue to inform you that pyup.io has been set up on this repo.
Once you have closed it, the bot will open pull requests for updates as soon as they are available.

https://click.palletsprojects.com/en/7.x/testing/#file-system-isolation

It should be possible to use module in the REPL or another script, and also use it from the command-line.

Use https://github.com/kvesteri/validators to make sure that we only try to download proper URLs.

https://python-packaging.readthedocs.io/en/latest/command-line-scripts.html explains how to package a python script so it can be installed locally and run from the commandline.

What can go wrong?

• The text file is empty
• No text file is given
• The URLs are not images
• …