Fix "failed to parse year in date -1 week-" error

[brivadeneira]

Fix uv "failed to parse year in date -1 week-" error

Problem
uv couldn't parse static "1 week" in pyproject.toml exclude-newer, causing TOML errors and failed make all/chores during cookiecutter generation.

Solution

• hooks/pre_gen_project.py: Dynamic date calculation(datetime.now() - timedelta(days=7)).isoformat()→ one_week_calc injected into cookiecutter.json
  - pyproject.toml: {{ cookiecutter.one_week_calc | default('2026-03-13T00:00:00Z') }}

Files Changed

• hooks/pre_gen_project.py : Dynamic date logic
• {{cookiecutter.__package_slug}}/pyproject.toml Templated date

Before

• make all, uv lock ,TOML parse error, dapperdata crashes

Running 'make all'
warning: Failed to parse `pyproject.toml` during settings discovery:
  TOML parse error at line 78, column 17
     |
  78 | exclude-newer = "1 week"
     |                 ^^^^^^^^
  failed to parse year in date "1 week": failed to parse "1 we" as year (a four digit integer): invalid digit, expected 0-9 but got  

After

• make all, uv lock, success

cookiecutter robs_awesome_python_template/

package_name []: testing_week_fix
(...)
python_version [3.14]: 3.11
(...)
Setting dynamic variable 'one_week_calc' to last week: 2026-03-13T15:36:04

Running 'make all'
Using CPython 3.11.11 interpreter at: /usr/bin/python3.11
Creating virtual environment at: .venv
Activate with: source .venv/bin/activate
Resolved 48 packages in 443ms
Resolved 48 packages in 0.60ms
      Built testing_week_fix @ file:///home/bibiana/mk

❯ tail testing_week_fix/pyproject.toml
disallow_untyped_calls = false
disallow_untyped_defs = true
no_implicit_optional = true
plugins = ["pydantic.mypy"]
strict_optional = true
warn_return_any = true
warn_unused_ignores = true

[tool.uv]
exclude-newer = "2026-03-13T00:00:00Z"