setup.py

import versioneer
from setuptools import setup, find_packages
import platform

# To use a consistent encoding
from codecs import open
from os import path, environ

cur_dir = path.abspath(path.dirname(__file__))

with open(path.join(cur_dir, "requirements.txt"), "r") as f:
    requirements = f.read().split()

dev_requirements = []

with open(path.join(cur_dir, "dev-requirements.txt"), "r") as f:
    dev_requirements = f.read().split()

with open(path.join(cur_dir, "README.md"), "r", encoding="utf-8") as f:
    long_description = f.read()

# Remove the 'optional' requirements
optional = ("PyQt5", "PySide", "psutil", "pcaspy", "pyepics")
for package in optional:
    if package in requirements:
        requirements.remove(package)

extras_require = {"PySide": ["PySide"], "pyepics": ["pyepics"], "perf": ["psutil"], "dev": dev_requirements}

if "CONDA_PREFIX" not in environ:
    extras_require["PyQt5"] = ["PyQt5"]
else:
    print("******************************************************************")
    print("*                              WARNING                           *")
    print("******************************************************************")
    print("Installing at an Anaconda Environment, to avoid naming conflicts ")
    print("make sure you do:")
    print("conda install pyqt=5")
    print("******************************************************************")
    print("For more info please check: ")
    print("https://github.com/ContinuumIO/anaconda-issues/issues/1554")
    print("******************************************************************")

extras_require["all"] = sorted(set(sum(extras_require.values(), [])))
# Preference for PyQt5 if you select ALL...
extras_require["all"].remove("PySide")

entry_style = "gui_scripts"
if platform.system() == "Windows":
    entry_style = "console_scripts"

setup(
    name="pydm",
    version=versioneer.get_version(),
    cmdclass=versioneer.get_cmdclass(),
    # Author details
    author="SLAC National Accelerator Laboratory",
    packages=find_packages(),
    package_dir={"pydm": "pydm", "pydm_launcher": "pydm_launcher"},
    description="Python Display Manager",
    long_description=long_description,
    long_description_content_type="text/markdown",
    url="https://github.com/slaclab/pydm",
    entry_points={entry_style: ["pydm=pydm_launcher.main:main"]},
    license="BSD",
    install_requires=requirements,
    extras_require=extras_require,
    include_package_data=True,
    classifiers=[
        "License :: OSI Approved :: BSD License",
        "Development Status :: 4 - Beta",
        "Programming Language :: Python :: 2",
        "Programming Language :: Python :: 2.7",
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.6",
    ],
)