2019-07-18T03:07:31 Created temporary directory: /tmp/pip-ephem-wheel-cache-wjdehpkx
2019-07-18T03:07:31 Created temporary directory: /tmp/pip-req-tracker-57sp2koj
2019-07-18T03:07:31 Created requirements tracker '/tmp/pip-req-tracker-57sp2koj'
2019-07-18T03:07:31 Created temporary directory: /tmp/pip-wheel-8grck9vx
2019-07-18T03:07:31 Collecting pycopy-weakref==0.0.2
2019-07-18T03:07:31   1 location(s) to search for versions of pycopy-weakref:
2019-07-18T03:07:31   * https://pypi.org/simple/pycopy-weakref/
2019-07-18T03:07:31   Getting page https://pypi.org/simple/pycopy-weakref/
2019-07-18T03:07:31   Analyzing links from page https://pypi.org/simple/pycopy-weakref/
2019-07-18T03:07:31     Found link https://files.pythonhosted.org/packages/c1/99/1dfc5203d95ddde8f1b0831724ae73a5c84aa4aec6c8cbb0c3728f1e6159/pycopy-weakref-0.0.2.tar.gz#sha256=55b1b5f2468f76a77903a597bcd8880e78b56bf95c6398c2b0d50fb465fc8ded (from https://pypi.org/simple/pycopy-weakref/), version: 0.0.2
2019-07-18T03:07:31   Using version 0.0.2 (newest of versions: 0.0.2)
2019-07-18T03:07:31   Created temporary directory: /tmp/pip-unpack-ukpxn6iy
2019-07-18T03:07:31   Downloading https://files.pythonhosted.org/packages/c1/99/1dfc5203d95ddde8f1b0831724ae73a5c84aa4aec6c8cbb0c3728f1e6159/pycopy-weakref-0.0.2.tar.gz
2019-07-18T03:07:31   Downloading from URL https://files.pythonhosted.org/packages/c1/99/1dfc5203d95ddde8f1b0831724ae73a5c84aa4aec6c8cbb0c3728f1e6159/pycopy-weakref-0.0.2.tar.gz#sha256=55b1b5f2468f76a77903a597bcd8880e78b56bf95c6398c2b0d50fb465fc8ded (from https://pypi.org/simple/pycopy-weakref/)
2019-07-18T03:07:31   Added pycopy-weakref==0.0.2 from https://files.pythonhosted.org/packages/c1/99/1dfc5203d95ddde8f1b0831724ae73a5c84aa4aec6c8cbb0c3728f1e6159/pycopy-weakref-0.0.2.tar.gz#sha256=55b1b5f2468f76a77903a597bcd8880e78b56bf95c6398c2b0d50fb465fc8ded to build tracker '/tmp/pip-req-tracker-57sp2koj'
2019-07-18T03:07:31     Running setup.py (path:/tmp/pip-wheel-8grck9vx/pycopy-weakref/setup.py) egg_info for package pycopy-weakref
2019-07-18T03:07:31     Running command python setup.py egg_info
2019-07-18T03:07:32     Traceback (most recent call last):
2019-07-18T03:07:32       File "<string>", line 1, in <module>
2019-07-18T03:07:32       File "/usr/local/lib/python3.7/dist-packages/setuptools/__init__.py", line 18, in <module>
2019-07-18T03:07:32         import setuptools.version
2019-07-18T03:07:32       File "/usr/local/lib/python3.7/dist-packages/setuptools/version.py", line 1, in <module>
2019-07-18T03:07:32         import pkg_resources
2019-07-18T03:07:32       File "/usr/local/lib/python3.7/dist-packages/pkg_resources/__init__.py", line 31, in <module>
2019-07-18T03:07:32         import pkgutil
2019-07-18T03:07:32       File "/usr/lib/python3.7/pkgutil.py", line 137, in <module>
2019-07-18T03:07:32         def iter_importer_modules(importer, prefix=''):
2019-07-18T03:07:32       File "/usr/lib/python3.7/functools.py", line 765, in singledispatch
2019-07-18T03:07:32         dispatch_cache = weakref.WeakKeyDictionary()
2019-07-18T03:07:32     AttributeError: module 'weakref' has no attribute 'WeakKeyDictionary'
2019-07-18T03:07:32 Cleaning up...
2019-07-18T03:07:32   Removing source in /tmp/pip-wheel-8grck9vx/pycopy-weakref
2019-07-18T03:07:32 Removed pycopy-weakref==0.0.2 from https://files.pythonhosted.org/packages/c1/99/1dfc5203d95ddde8f1b0831724ae73a5c84aa4aec6c8cbb0c3728f1e6159/pycopy-weakref-0.0.2.tar.gz#sha256=55b1b5f2468f76a77903a597bcd8880e78b56bf95c6398c2b0d50fb465fc8ded from build tracker '/tmp/pip-req-tracker-57sp2koj'
2019-07-18T03:07:32 Removed build tracker '/tmp/pip-req-tracker-57sp2koj'
2019-07-18T03:07:32 ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-8grck9vx/pycopy-weakref/
2019-07-18T03:07:32 Exception information:
2019-07-18T03:07:32 Traceback (most recent call last):
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-07-18T03:07:32     status = self.run(options, args)
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-07-18T03:07:32     resolver.resolve(requirement_set)
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-07-18T03:07:32     self._resolve_one(requirement_set, req)
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-07-18T03:07:32     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-07-18T03:07:32     self.require_hashes
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 362, in prepare_linked_requirement
2019-07-18T03:07:32     abstract_dist.prep_for_dist(finder, self.build_isolation)
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 171, in prep_for_dist
2019-07-18T03:07:32     self.req.prepare_metadata()
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 537, in prepare_metadata
2019-07-18T03:07:32     self.run_egg_info()
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 615, in run_egg_info
2019-07-18T03:07:32     command_desc='python setup.py egg_info')
2019-07-18T03:07:32   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/utils/misc.py", line 776, in call_subprocess
2019-07-18T03:07:32     % (command_desc, proc.returncode, cwd))
2019-07-18T03:07:32 pip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-8grck9vx/pycopy-weakref/