Update setup.py. Remove versions util.

setup.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
-
+import pathlib
+import re
 import sys
-from warnings import warn
 
 from setuptools import find_packages, setup
 
@@ -10,12 +10,25 @@ try:
 except ImportError:  # pip >= 10.0.0
     from pip._internal.req import parse_requirements
 
-from aiogram import Stage, VERSION
+WORK_DIR = pathlib.Path(__file__).parent
 
+# Check python version
 MINIMAL_PY_VERSION = (3, 6)
-
 if sys.version_info < MINIMAL_PY_VERSION:
-    warn('aiogram works only with Python {}+'.format('.'.join(map(str, MINIMAL_PY_VERSION)), RuntimeWarning))
+    raise RuntimeError('aiogram works only with Python {}+'.format('.'.join(map(str, MINIMAL_PY_VERSION))))
+
+
+def get_version():
+    """
+    Read version
+
+    :return: str
+    """
+    txt = (WORK_DIR / 'aiogram' / '__init__.py').read_text('utf-8')
+    try:
+        return re.findall(r"^__version__ = '([^']+)'\r?$", txt, re.M)[0]
+    except IndexError:
+        raise RuntimeError('Unable to determine version.')
 
 
 def get_description():
@@ -29,35 +42,35 @@ def get_description():
         return f.read()
 
 
-def get_requirements():
+def get_requirements(filename=None):
     """
     Read requirements from 'requirements txt'
 
     :return: requirements
     :rtype: list
     """
-    filename = 'requirements.txt'
-    if VERSION.stage == Stage.DEV:
-        filename = 'dev_' + filename
+    if filename is None:
+        filename = 'requirements.txt'
 
-    install_reqs = parse_requirements(filename, session='hack')
+    file = WORK_DIR / filename
+
+    install_reqs = parse_requirements(str(file), session='hack')
     return [str(ir.req) for ir in install_reqs]
 
 
-install_requires = get_requirements()
-
 setup(
     name='aiogram',
-    version=VERSION.version,
+    version=get_version(),
     packages=find_packages(exclude=('tests', 'tests.*', 'examples.*', 'docs',)),
     url='https://github.com/aiogram/aiogram',
     license='MIT',
     author='Alex Root Junior',
-    author_email='jroot.junior@gmail.com',
+    requires_python='>=3.6',
+    author_email='aiogram@illemius.xyz',
     description='Is a pretty simple and fully asynchronous library for Telegram Bot API',
     long_description=get_description(),
     classifiers=[
-        VERSION.pypi_development_status,  # Automated change classifier by build stage
+        'Development Status :: 5 - Production/Stable'
         'Environment :: Console',
         'Framework :: AsyncIO',
         'Intended Audience :: Developers',
@@ -66,5 +79,5 @@ setup(
         'Programming Language :: Python :: 3.6',
         'Topic :: Software Development :: Libraries :: Application Frameworks',
     ],
-    install_requires=install_requires
+    install_requires=get_requirements()
 )