setup.py

from setuptools import setup
import sys
import os


def parse_version(fpath):
    """
    Statically parse the version number from a python file
    """
    import ast
    if not os.path.exists(fpath):
        raise ValueError('fpath={!r} does not exist'.format(fpath))
    with open(fpath, 'r') as file_:
        sourcecode = file_.read()
    pt = ast.parse(sourcecode)
    class Finished(Exception):
        pass
    class VersionVisitor(ast.NodeVisitor):
        def visit_Assign(self, node):
            for target in node.targets:
                if getattr(target, 'id', None) == '__version__':
                    self.version = node.value.s
                    raise Finished
    visitor = VersionVisitor()
    try:
        visitor.visit(pt)
    except Finished:
        pass
    return visitor.version


def parse_requirements(fname='requirements.txt', with_version=False):

    """
    Parse the package dependencies listed in a requirements file but strips
    specific versioning information.

    Args:
        fname (str): path to requirements file
        with_version (bool, default=False): if true include version specs

    Returns:
        List[str]: list of requirements items
    """
    from os.path import exists, dirname, join
    import re
    require_fpath = fname

    def parse_line(line, dpath=''):
        """
        Parse information from a line in a requirements text file

        line = 'git+https://a.com/somedep@sometag#egg=SomeDep'
        line = '-e git+https://a.com/somedep@sometag#egg=SomeDep'
        """
        # Remove inline comments
        comment_pos = line.find(' #')
        if comment_pos > -1:
            line = line[:comment_pos]

        if line.startswith('-r '):
            # Allow specifying requirements in other files
            target = join(dpath, line.split(' ')[1])
            for info in parse_require_file(target):
                yield info
        else:
            # See: https://www.python.org/dev/peps/pep-0508/
            info = {'line': line}
            if line.startswith('-e '):
                info['package'] = line.split('#egg=')[1]
            else:
                if ';' in line:
                    pkgpart, platpart = line.split(';')
                    # Handle platform specific dependencies
                    # setuptools.readthedocs.io/en/latest/setuptools.html
                    # #declaring-platform-specific-dependencies
                    plat_deps = platpart.strip()
                    info['platform_deps'] = plat_deps
                else:
                    pkgpart = line
                    platpart = None

                # Remove versioning from the package
                pat = '(' + '|'.join(['>=', '==', '>']) + ')'
                parts = re.split(pat, pkgpart, maxsplit=1)
                parts = [p.strip() for p in parts]

                info['package'] = parts[0]
                if len(parts) > 1:
                    op, rest = parts[1:]
                    version = rest  # NOQA
                    info['version'] = (op, version)
            yield info

    def parse_require_file(fpath):
        dpath = dirname(fpath)
        with open(fpath, 'r') as f:
            for line in f.readlines():
                line = line.strip()
                if line and not line.startswith('#'):
                    for info in parse_line(line, dpath=dpath):
                        yield info

    def gen_packages_items():
        if exists(require_fpath):
            for info in parse_require_file(require_fpath):
                parts = [info['package']]
                if with_version and 'version' in info:
                    parts.extend(info['version'])
                if not sys.version.startswith('3.4'):
                    # apparently package_deps are broken in 3.4
                    plat_deps = info.get('platform_deps')
                    if plat_deps is not None:
                        parts.append(';' + plat_deps)
                item = ''.join(parts)
                yield item

    packages = list(gen_packages_items())
    return packages

tag = parse_version('fels/__init__.py')

with open("README.md", "r") as fh:
    long_description = fh.read()

setup(
    name='FeLS',
    version=tag,
    py_modules=['fels'],
    description='Fetch Landsat & Sentinel Data from google cloud',
    long_description=long_description,
    long_description_content_type="text/markdown",
    url='https://github.com/vascobnunes/fetchLandsatSentinelFromGoogleCloud',
    author='vascobnunes',
    author_email='vascobnunes@gmail.com',
    license='GPL',
    zip_safe=False,  # TODO: we can grab fels data with a ubelt cache
    packages=['fels'],
    package_data={'': ['data/*']},
    include_package_data=True,
    install_requires=parse_requirements('requirements/runtime.txt'),
    extras_require={
        'all': parse_requirements('requirements.txt'),
        'tests': parse_requirements('requirements/tests.txt'),
        'optional': parse_requirements('requirements/optional.txt'),
    },
    dependency_links=['https://www.conan.io/source/Gdal/2.1.3/osechet/stable'],
    entry_points={
        'console_scripts': [
            'fels = fels.__main__:main'
        ]
    })