584-allow uppercase in package name

[fdiblen]

Checklist before requesting a review

• I have read the contribution guidelines
• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• All user facing changes have been added to CHANGELOG.md

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

List of related issues or pull requests**

Refs:

• Upper case in the name of the Package blocks the generating system #584

Describe the changes made in this pull request

Package names containing uppercase are allowed.

Instructions to review the pull request

Install the requirements

cd $(mktemp -d --tmpdir py-tmpl-XXXXXX)
pip install pipx
pipx install copier

Create a new package using the template

copier copy --vcs-ref <YOUR_BRANCH> https://github.com/nlesc/python-template test_package

Create a local git repo to push to GitHub to trigger CI actions

git init
git add --all
git commit -m "First commit"
git remote add origin git@github.com:<YOU>/python-template-test.git
git push -u origin main -f

# Create a local environment to test your generated package locally
python -m venv env
source env/bin/activate
python -m pip install --upgrade pip setuptools
python -m pip install '.[dev,publishing]'

[lyashevska]

Type of change is not selected in the description of this PR.

[lyashevska]

Suggested change

	* CHANGELOG.md is now optional ([#462](https://github.com/NLeSC/python-template/issues/462))
	* CHANGELOG.md is now optional [#462](https://github.com/NLeSC/python-template/issues/462)

[lyashevska]

Suggested change

	* pre-commit script is optional ([#457](https://github.com/NLeSC/python-template/issues/457))
	* pre-commit script is optional [#457](https://github.com/NLeSC/python-template/issues/457)

[lyashevska]

Suggested change

	Package name must start with a letter, followed one or more letters, digits or underscores all lowercase
	Package name must start with a letter, followed one or more letters, digits or underscores

[lyashevska]

thanks @fdiblen See a couple of comments. After that good to go.

[fdiblen]

blocked by #621