Digimach / cookiecutter-python-package

hooks/pre_gen_project.py

#!/bin/env python3
"""
Cookiecutter pre generation hook script that handles operations before the
template project is used to generate a target project.
"""
import re
import sys


def check_python_min_max_versions():
    """
    Check to make sure project_python_min_version and
    project_python_max_version are valid.
    """

    # fmt: off
    project_python_min_version = {{ cookiecutter.project_python_min_version }}  # noqa pylint: disable=undefined-variable

No space allowed after bracket

No space allowed before bracket

    project_python_max_version = {{ cookiecutter.project_python_max_version }}  # noqa pylint: disable=undefined-variable

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No space allowed before bracket

    # fmt: on
    project_valid_python_versions = (
        "{{cookiecutter.project_valid_python_versions}}".replace(" ", "").split(",")
    )  # noqa pylint: disable=line-too-long

    if not re.search(r"\d+.\d+", str(project_python_min_version)):
        print(("** ERROR: Invalid value provided for" ' "project_python_min_version".'))
        sys.exit(1)
    elif not re.search(r"\d+.\d+", str(project_python_max_version)):
        print(("** ERROR: Invalid value provided for" ' "project_python_max_version".'))
        sys.exit(1)
    elif str(project_python_min_version) not in project_valid_python_versions:
        print(
            (
                "** ERROR: Invalid value provided for"
                f' "project_python_min_version" {project_python_min_version}.'
                f" Expecting on of: {project_valid_python_versions}"
            )
        )
        sys.exit(1)
    elif str(project_python_max_version) not in project_valid_python_versions:
        print(
            (
                '** ERROR: Invalid value provided for "project_python_max_version"'
                f" {project_python_max_version}."
                f" Expecting on of: {project_valid_python_versions}"
            )
        )
        sys.exit(1)

    if project_python_min_version > project_python_max_version:
        print(
            f'** ERROR: "project_python_min_version" {project_python_min_version} has'
            ' to be greater than or equal to "project_python_max_version"'
            f" {project_python_max_version}"
        )
        sys.exit(1)


if __name__ == "__main__":
    check_python_min_max_versions()