2019-06-28T14:03:32 Created temporary directory: /tmp/pip-ephem-wheel-cache-d7dscg_4
2019-06-28T14:03:32 Created temporary directory: /tmp/pip-req-tracker-fknvsr3k
2019-06-28T14:03:32 Created requirements tracker '/tmp/pip-req-tracker-fknvsr3k'
2019-06-28T14:03:32 Created temporary directory: /tmp/pip-wheel-7j9q5dql
2019-06-28T14:03:32 Collecting datatree==0.1.7
2019-06-28T14:03:32   1 location(s) to search for versions of datatree:
2019-06-28T14:03:32   * https://pypi.org/simple/datatree/
2019-06-28T14:03:32   Getting page https://pypi.org/simple/datatree/
2019-06-28T14:03:32   Analyzing links from page https://pypi.org/simple/datatree/
2019-06-28T14:03:32     Found link https://files.pythonhosted.org/packages/9a/f1/e6b3cb63c6b80683861ef6b908b346dfe4a72be93ec7340d6adfd13cdc73/datatree-0.1.6.tar.gz#sha256=71cf878ec75022ff2f346a0ea937b9eee67d2455f2b0526c9d5d37213210bbfd (from https://pypi.org/simple/datatree/), version: 0.1.6
2019-06-28T14:03:32     Found link https://files.pythonhosted.org/packages/2e/42/7a2afa1f940e62937280abadf094530b3d31640c37ae569b311d46488bfa/datatree-0.1.7.tar.gz#sha256=6d46c155e67da1ba477284e9aeb77b1732efa7358174c5e8e99d46dad549706e (from https://pypi.org/simple/datatree/), version: 0.1.7
2019-06-28T14:03:32     Found link https://files.pythonhosted.org/packages/a4/6f/d338559f0788b8389e1ebac45c913259382cb8ade5af582b7510eea5f33e/datatree-0.1.8.tar.gz#sha256=73ef773e646703283e946e3009306e985d3310389dc976cc2e06232dc84e9191 (from https://pypi.org/simple/datatree/), version: 0.1.8
2019-06-28T14:03:32     Found link https://files.pythonhosted.org/packages/f4/58/dd010d582126b58e67e21f4d6dbd08bc6cdb53879b045c2cc627892ff978/datatree-0.1.8.1.tar.gz#sha256=8827beeff680842c70dad7f52e57b3d7044f2a4749a7e1e1516517fb5f443a84 (from https://pypi.org/simple/datatree/), version: 0.1.8.1
2019-06-28T14:03:32   Using version 0.1.7 (newest of versions: 0.1.7)
2019-06-28T14:03:32   Created temporary directory: /tmp/pip-unpack-_iwlpdfv
2019-06-28T14:03:32   Downloading https://files.pythonhosted.org/packages/2e/42/7a2afa1f940e62937280abadf094530b3d31640c37ae569b311d46488bfa/datatree-0.1.7.tar.gz
2019-06-28T14:03:32   Downloading from URL https://files.pythonhosted.org/packages/2e/42/7a2afa1f940e62937280abadf094530b3d31640c37ae569b311d46488bfa/datatree-0.1.7.tar.gz#sha256=6d46c155e67da1ba477284e9aeb77b1732efa7358174c5e8e99d46dad549706e (from https://pypi.org/simple/datatree/)
2019-06-28T14:03:32   Added datatree==0.1.7 from https://files.pythonhosted.org/packages/2e/42/7a2afa1f940e62937280abadf094530b3d31640c37ae569b311d46488bfa/datatree-0.1.7.tar.gz#sha256=6d46c155e67da1ba477284e9aeb77b1732efa7358174c5e8e99d46dad549706e to build tracker '/tmp/pip-req-tracker-fknvsr3k'
2019-06-28T14:03:32     Running setup.py (path:/tmp/pip-wheel-7j9q5dql/datatree/setup.py) egg_info for package datatree
2019-06-28T14:03:32     Running command python setup.py egg_info
2019-06-28T14:03:33     Traceback (most recent call last):
2019-06-28T14:03:33       File "<string>", line 1, in <module>
2019-06-28T14:03:33       File "/tmp/pip-wheel-7j9q5dql/datatree/setup.py", line 4, in <module>
2019-06-28T14:03:33         from datatree import VERSION
2019-06-28T14:03:33       File "/tmp/pip-wheel-7j9q5dql/datatree/datatree/__init__.py", line 1, in <module>
2019-06-28T14:03:33         from .node import Tree, n, Node, Name, __
2019-06-28T14:03:33       File "/tmp/pip-wheel-7j9q5dql/datatree/datatree/node.py", line 1, in <module>
2019-06-28T14:03:33         from StringIO import StringIO
2019-06-28T14:03:33     ModuleNotFoundError: No module named 'StringIO'
2019-06-28T14:03:33 Cleaning up...
2019-06-28T14:03:33   Removing source in /tmp/pip-wheel-7j9q5dql/datatree
2019-06-28T14:03:33 Removed datatree==0.1.7 from https://files.pythonhosted.org/packages/2e/42/7a2afa1f940e62937280abadf094530b3d31640c37ae569b311d46488bfa/datatree-0.1.7.tar.gz#sha256=6d46c155e67da1ba477284e9aeb77b1732efa7358174c5e8e99d46dad549706e from build tracker '/tmp/pip-req-tracker-fknvsr3k'
2019-06-28T14:03:33 Removed build tracker '/tmp/pip-req-tracker-fknvsr3k'
2019-06-28T14:03:33 ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-7j9q5dql/datatree/
2019-06-28T14:03:33 Exception information:
2019-06-28T14:03:33 Traceback (most recent call last):
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-06-28T14:03:33     status = self.run(options, args)
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-06-28T14:03:33     resolver.resolve(requirement_set)
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 131, in resolve
2019-06-28T14:03:33     self._resolve_one(requirement_set, req)
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-06-28T14:03:33     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-06-28T14:03:33     self.require_hashes
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 362, in prepare_linked_requirement
2019-06-28T14:03:33     abstract_dist.prep_for_dist(finder, self.build_isolation)
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/operations/prepare.py", line 171, in prep_for_dist
2019-06-28T14:03:33     self.req.prepare_metadata()
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 537, in prepare_metadata
2019-06-28T14:03:33     self.run_egg_info()
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/req/req_install.py", line 615, in run_egg_info
2019-06-28T14:03:33     command_desc='python setup.py egg_info')
2019-06-28T14:03:33   File "/usr/local/lib/python3.7/dist-packages/pip/_internal/utils/misc.py", line 776, in call_subprocess
2019-06-28T14:03:33     % (command_desc, proc.returncode, cwd))
2019-06-28T14:03:33 pip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-7j9q5dql/datatree/