Update new build and setup scripts

Author: lukasmasuch

MANIFEST.in

@@ -1,12 +1,13 @@
 #!/usr/bin/env python
 
 import os
+import re
 from glob import glob
 from os.path import basename, splitext
 
 from setuptools import find_packages, setup  # type: ignore
 
-# Package meta-data
+# Package Metadata
 NAME = "lazydocs"
 MAIN_PACKAGE = "lazydocs"  # Change if main package != NAME
 DESCRIPTION = "Generate markdown API documentation for Google-style Python docstring."
@@ -17,52 +18,16 @@
 REQUIRES_PYTHON = ">=3.6"
 VERSION = None  # Only set version if you like to overwrite the version in _about.py
 
-# Please define the requirements within the requirements.txt
-
-# The rest you shouldn't have to touch too much :)
-# ------------------------------------------------
-# Except maybe the trove classifiers!
-
 PWD = os.path.abspath(os.path.dirname(__file__))
 
-
-def load_requirements(path_dir=PWD, file_name="requirements.txt", comment_char="#"):
-    """Read requirements file and return packages and git repos separately."""
-    requirements = []
-    dependency_links = []
-    with open(os.path.join(path_dir, file_name), "r", encoding="utf-8") as file:
-        lines = [ln.strip() for ln in file.readlines()]
-    for ln in lines:
-        if not ln:
-            continue
-        if comment_char in ln:
-            ln = ln[: ln.index(comment_char)].strip()
-        if ln.startswith("git+"):
-            dependency_links.append(ln.replace("git+", ""))
-        else:
-            requirements.append(ln)
-    return requirements, dependency_links
-
-
-# Read the requirements.txt and use it for the setup.py requirements
-requirements, dependency_links = load_requirements()
-if dependency_links:
-    print(
-        "Cannot install some dependencies. "
-        "Dependency links are currently not supported: " + str(dependency_links)
-    )
-
 # Import the README and use it as the long-description.
 with open(os.path.join(PWD, "README.md"), encoding="utf-8") as f:
     long_description = f.read()
 
-# Load the package's _about.py module as a dictionary.
-about = {}  # type: dict
+# Extract the version from the _about.py module.
 if not VERSION:
-    with open(os.path.join(PWD, os.path.join("src", MAIN_PACKAGE), "_about.py")) as f:  # type: ignore
-        # todo: extract version via regex? re.findall("__version__ = '([\d.\w]+)'", f.read())[0]
-        exec(f.read(), about)
-        VERSION = about["__version__"]
+    with open(os.path.join(PWD, "src", MAIN_PACKAGE, "_about.py")) as f:  # type: ignore
+        VERSION = re.findall(r"__version__\s*=\s*\"(.+)\"", f.read())[0]
 
 # Where the magic happens:
 setup(
@@ -80,7 +45,8 @@ def load_requirements(path_dir=PWD, file_name="requirements.txt", comment_char="
     package_dir={"": "src"},
     py_modules=[splitext(basename(path))[0] for path in glob("src/*.py")],
     zip_safe=False,
-    install_requires=requirements,
+    install_requires=["typer"],
+    # deprecated: dependency_links=dependency_links,
     extras_require={
         # extras can be installed via: pip install package[dev]
         "dev": [
@@ -105,21 +71,21 @@ def load_requirements(path_dir=PWD, file_name="requirements.txt", comment_char="
         # If there are data files included in your packages that need to be
         # 'sample': ['package_data.dat'],
     },
-    # deprecated: dependency_links=dependency_links,
     classifiers=[
-        # TODO: Update via https://pypi.python.org/pypi?%3Aaction=list_classifiers
         "Development Status :: 4 - Beta",
         "Intended Audience :: Developers",
         "Intended Audience :: Science/Research",
         "License :: OSI Approved :: MIT License",
         "Natural Language :: English",
         "Operating System :: OS Independent",
+        "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: 3 :: Only",
+        "Programming Language :: Python :: Implementation :: PyPy",
+        "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Software Development :: Libraries",
         "Topic :: Software Development :: Libraries :: Python Modules",
     ],
@@ -129,9 +95,7 @@ def load_requirements(path_dir=PWD, file_name="requirements.txt", comment_char="
         "Documentation": URL + "#documentation",
         "Source": URL,
     },
-    entry_points={
-        "console_scripts": [f"{NAME}={MAIN_PACKAGE}._cli:app"],
-    },
+    entry_points={"console_scripts": [f"{NAME}={MAIN_PACKAGE}._cli:app"]},
     keywords=[
         # eg: 'keyword1', 'keyword2', 'keyword3',
     ],