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18 changes: 11 additions & 7 deletions setup.py
Original file line number Diff line number Diff line change
@@ -1,14 +1,18 @@
"""This module contains the packaging routine for the pybook package"""

from setuptools import setup, find_packages
try:
from pip.download import PipSession
from pip.req import parse_requirements
except ImportError:
# It is quick hack to support pip 10 that has changed its internal
# structure of the modules.

import pip
pip_major_version = int(pip.__version__.split(".")[0])
if pip_major_version >= 20:
from pip._internal.req import parse_requirements
from pip._internal.network.session import PipSession
elif pip_major_version >= 10:
from pip._internal.req import parse_requirements
from pip._internal.download import PipSession
from pip._internal.req.req_file import parse_requirements
else:
from pip.req import parse_requirements
from pip.download import PipSession


def get_requirements(source):
Expand Down