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https://github.com/tartley/colorama

Simple cross-platform colored terminal text in Python
https://github.com/tartley/colorama

Last synced: 11 days ago
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Simple cross-platform colored terminal text in Python

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README 

        
# Colorama Development



Help and fixes are welcome!



Although Colorama has no requirements other than the Python standard library,

development requires some Python packages, which are captured in

requirements-dev.txt.



Throughout, if you're on a Mac, you can probably do something similar to the

Linux instructions. Either use the makefile directly, or look in it to see

what commands it executes, and manually execute something similar. PRs to

automate for Mac appreciated! Especially if they just made the existing Linux

Makefile targets work on Mac too.



## Desired changes



Colorama is unexpectedly popular, and is now a transitive dependency of many

popular and high profile projects. If we break backwards compatibility, even in a

subtle way, we can break applications - or pip installs - for lots of people.



In addition, the project already takes more time & energy to maintain than

the maintainers currently have available - for example the original author

is now a parent, and no longer uses Windows, so time and motivation for this

project are both much lower than they used to be.



As a result of both the above, we are very conservative in what sorts of

changes we can accept. Generally, we are not keen on new features. Even if

they are small, they still add to the future maintenance burden, increasing

the surface area into which future bugs or compatibility breaks could be

introduced.



This is especially true if they are new ways to generate ANSI codes (e.g.

context managers for handling Fore, Back or Style changes.), since it has

always been Colorama's stance that if you want to print ANSI codes, then yes

we can help out with that in a rudimentary way, but if you want to do advanced

things, then you should be using a different library that specializes in that,

such as Termcolor, Blessings, or Rich. These libraries are much better than

Colorama at generating ANSI codes for colors and the like, and probably

already include the feature you are trying to add to Colorama, plus many

more.



In addition to using those libraries, if you call colorama.init(), then your

fancy new colors, etc, will also work on Windows. This is the main purpose

of Colorama.



The kinds of submissions we would encourage work towards that goal, or fix

bugs, or improve compatibility across operating systems or environments.



## Makefile and PowerShell scripts



Some common commands are captured as Linux makefile targets (which could

perhaps be coaxed into running on OSX in Bash), and as Windows PowerShell

scripts.



| Task                            | Linux               | Windows              |

|---------------------------------|---------------------|----------------------|

| Create & populate virtualenv.   | `make bootstrap`    | `.\bootstrap.ps1`    |

| Run tests.                      | `make test`         | `.\test.ps1`         |

| Build a wheel.                  | `make build`        | `.\build.ps1`        |

| Test the wheel.                 | `make test-release` | `.\test-release.ps1` |

| Release the wheel on PyPI       | `make release`      | `.\release.ps1`      |

| Clean generated files & builds. | `make clean`        | `.\clean.ps1`        |



The Makefile is self-documenting, so 'make' with no args will describe each

target.



## Release checklist



1. Check the CHANGELOG.rst is updated with everything since the last release,

   including links to merged PRs. Move the "Current release" comment from the

   previous version number.



2. First we'll make a candidate release. Ensure  the '.rc1' suffix is

   present on `__version__` in `colorama/__init.py__.py`, eg:



        __version__ = '0.4.6rc1'



3. Run the tests locally on your preferred OS, just to save you from doing

   the subsequent time-consuming steps while there are still obvious problems

   in the code:



   * Windows:

     * First allow powershell to execute scripts, see:

       https://stackoverflow.com/a/32328091

     * `powershell bootstrap.ps1`

     * `powershell test.ps1`

   * Linux:

     * `make bootstrap`

     * `make test`



4. Verify you're all committed, merged to master.



5. Tag the current commit with the `__version__` from `colorama/__init__.py`.

   We should start using

   [annotated tags for releases](https://www.tartley.com/posts/git-annotated-tags), so:



       git tag -a -m "" $version

       git push --follow-tags



6. Build the distributables (sdist and wheel), on either OS:



    * Windows: `.\build.ps1`

    * Linux: `make build`



7. Test the distributables on both OS. Whichever one you do 2nd will get an

   HTTP 400 response on uploading to test.pypi.org, but outputs a message

   saying this is expected and carries on:



   * Windows: `.\test-release.ps1`

   * Linux: `make test-release`



   (This currently only tests the wheel, but

   [should soon test the sdist too](https://github.com/tartley/colorama/issues/286).)



8. Check the [CI builds](https://github.com/tartley/colorama/actions/)

   are complete and all passing.



9. Upload the distributables to PyPI:



   * On Windows: `.\release.ps1`

   * On Linux: `make release`



10. Test by installing the candidate version from PyPI, and sanity check it with

    'demo.sh', making sure this is running against the PyPI installation, not

    local source.



11. Maybe wait a day for anyone using pre-release installs to report any

    problems?



12. Remove the '.rcX' suffix from `__version__` in

    `colorama/__init__.py`.



13. Repeat steps 4 to 9, for the actual (non-candidate) release.



14. Bump the version number in `colorama/__init__.py`, and add a 'dev1'

    suffix, eg:



    `0.4.5dev1`



    so that any build artifacts created are clearly labelled as not a real

    release. Commit and push this (directly to master is fine.)