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Fix sdist build under setuptools >= 82 (pkg_resources removed) #598

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Fix sdist build under setuptools >= 82 (pkg_resources removed) #598

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52 changes: 1 addition & 51 deletions setup.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,57 +5,7 @@
import sys

from os.path import join, dirname
from setuptools import setup, find_packages, __version__ as setuptools_version
from pkg_resources import parse_version

import pkg_resources

try:
import _markerlib.markers
except ImportError:
_markerlib = None


# _markerlib.default_environment() obtains its data from _VARS
# and wraps it in another dict, but _markerlib_evaluate writes
# to the dict while it is iterating the keys, causing an error
# on Python 3 only.
# Replace _markerlib.default_environment to return a custom dict
# that has all the necessary markers, and ignores any writes.

class Python3MarkerDict(dict):

def __setitem__(self, key, value):
pass

def pop(self, i=-1):
return self[i]


if _markerlib and sys.version_info[0] == 3:
env = _markerlib.markers._VARS
for key in list(env.keys()):
new_key = key.replace('.', '_')
if new_key != key:
env[new_key] = env[key]

_markerlib.markers._VARS = Python3MarkerDict(env)

def default_environment():
return _markerlib.markers._VARS

_markerlib.default_environment = default_environment

# Avoid the very buggy pkg_resources.parser, which doesn't consistently
# recognise the markers needed by this setup.py
# Change this to setuptools 20.10.0 to support all markers.
if pkg_resources:
if parse_version(setuptools_version) < parse_version('18.5'):
MarkerEvaluation = pkg_resources.MarkerEvaluation

del pkg_resources.parser
pkg_resources.evaluate_marker = MarkerEvaluation._markerlib_evaluate
MarkerEvaluation.evaluate_marker = MarkerEvaluation._markerlib_evaluate
from setuptools import setup, find_packages

classifiers = [
'Development Status :: 5 - Production/Stable',
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