2019-07-02T17:31:42 Created temporary directory: /tmp/pip-ephem-wheel-cache-kacw0jsk
2019-07-02T17:31:42 Created temporary directory: /tmp/pip-req-tracker-7vlwzzyp
2019-07-02T17:31:42 Created requirements tracker '/tmp/pip-req-tracker-7vlwzzyp'
2019-07-02T17:31:42 Created temporary directory: /tmp/pip-wheel-m2b6b7yw
2019-07-02T17:31:42 Collecting micropython-weakref==0.0.2
2019-07-02T17:31:42   1 location(s) to search for versions of micropython-weakref:
2019-07-02T17:31:42   * https://pypi.org/simple/micropython-weakref/
2019-07-02T17:31:42   Getting page https://pypi.org/simple/micropython-weakref/
2019-07-02T17:31:43   Analyzing links from page https://pypi.org/simple/micropython-weakref/
2019-07-02T17:31:43     Found link https://files.pythonhosted.org/packages/85/48/bd547ea5419ee871d3b9ab314075623c5164d927e3094caa752242d4ec8c/micropython-weakref-0.0.1.tar.gz#sha256=904e8a2c1d6d42ff728575f56e71125a1d6c3c48d0ad5187a6eae1591a88ac98 (from https://pypi.org/simple/micropython-weakref/), version: 0.0.1
2019-07-02T17:31:43     Found link https://files.pythonhosted.org/packages/be/a0/29d6e950c800f591209f2cedf1a7ee22eca6f8029decdcdc7ddc0c6bb4d3/micropython-weakref-0.0.2.tar.gz#sha256=9f04199a03f170a0a2820610e84b371612db668ba3da01c169479aa2ba86ec95 (from https://pypi.org/simple/micropython-weakref/), version: 0.0.2
2019-07-02T17:31:43   Using version 0.0.2 (newest of versions: 0.0.2)
2019-07-02T17:31:43   Created temporary directory: /tmp/pip-unpack-pxatak_s
2019-07-02T17:31:43   Downloading https://files.pythonhosted.org/packages/be/a0/29d6e950c800f591209f2cedf1a7ee22eca6f8029decdcdc7ddc0c6bb4d3/micropython-weakref-0.0.2.tar.gz
2019-07-02T17:31:43   Downloading from URL https://files.pythonhosted.org/packages/be/a0/29d6e950c800f591209f2cedf1a7ee22eca6f8029decdcdc7ddc0c6bb4d3/micropython-weakref-0.0.2.tar.gz#sha256=9f04199a03f170a0a2820610e84b371612db668ba3da01c169479aa2ba86ec95 (from https://pypi.org/simple/micropython-weakref/)
2019-07-02T17:31:43   Added micropython-weakref==0.0.2 from https://files.pythonhosted.org/packages/be/a0/29d6e950c800f591209f2cedf1a7ee22eca6f8029decdcdc7ddc0c6bb4d3/micropython-weakref-0.0.2.tar.gz#sha256=9f04199a03f170a0a2820610e84b371612db668ba3da01c169479aa2ba86ec95 to build tracker '/tmp/pip-req-tracker-7vlwzzyp'
2019-07-02T17:31:43     Running setup.py (path:/tmp/pip-wheel-m2b6b7yw/micropython-weakref/setup.py) egg_info for package micropython-weakref
2019-07-02T17:31:43     Running command python setup.py egg_info
2019-07-02T17:31:43     Traceback (most recent call last):
2019-07-02T17:31:43       File "<string>", line 1, in <module>
2019-07-02T17:31:43       File "/usr/local/lib/python3.7/dist-packages/setuptools/__init__.py", line 18, in <module>
2019-07-02T17:31:43         import setuptools.version
2019-07-02T17:31:43       File "/usr/local/lib/python3.7/dist-packages/setuptools/version.py", line 1, in <module>
2019-07-02T17:31:43         import pkg_resources
2019-07-02T17:31:43       File "/usr/local/lib/python3.7/dist-packages/pkg_resources/__init__.py", line 31, in <module>
2019-07-02T17:31:43         import pkgutil
2019-07-02T17:31:43       File "/usr/lib/python3.7/pkgutil.py", line 137, in <module>
2019-07-02T17:31:43         def iter_importer_modules(importer, prefix=''):
2019-07-02T17:31:43       File "/usr/lib/python3.7/functools.py", line 765, in singledispatch
2019-07-02T17:31:43         dispatch_cache = weakref.WeakKeyDictionary()
2019-07-02T17:31:43     AttributeError: module 'weakref' has no attribute 'WeakKeyDictionary'
2019-07-02T17:31:43 Cleaning up...
2019-07-02T17:31:43   Removing source in /tmp/pip-wheel-m2b6b7yw/micropython-weakref
2019-07-02T17:31:43 Removed micropython-weakref==0.0.2 from https://files.pythonhosted.org/packages/be/a0/29d6e950c800f591209f2cedf1a7ee22eca6f8029decdcdc7ddc0c6bb4d3/micropython-weakref-0.0.2.tar.gz#sha256=9f04199a03f170a0a2820610e84b371612db668ba3da01c169479aa2ba86ec95 from build tracker '/tmp/pip-req-tracker-7vlwzzyp'
2019-07-02T17:31:43 Removed build tracker '/tmp/pip-req-tracker-7vlwzzyp'
2019-07-02T17:31:43 ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-m2b6b7yw/micropython-weakref/
2019-07-02T17:31:43 Exception information:
2019-07-02T17:31:43 Traceback (most recent call last):
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/cli/base_command.py", line 178, in main
2019-07-02T17:31:43     status = self.run(options, args)
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/commands/wheel.py", line 164, in run
2019-07-02T17:31:43     resolver.resolve(requirement_set)
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/resolve.py", line 131, in resolve
2019-07-02T17:31:43     self._resolve_one(requirement_set, req)
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/resolve.py", line 294, in _resolve_one
2019-07-02T17:31:43     abstract_dist = self._get_abstract_dist_for(req_to_install)
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/resolve.py", line 242, in _get_abstract_dist_for
2019-07-02T17:31:43     self.require_hashes
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 362, in prepare_linked_requirement
2019-07-02T17:31:43     abstract_dist.prep_for_dist(finder, self.build_isolation)
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/operations/prepare.py", line 171, in prep_for_dist
2019-07-02T17:31:43     self.req.prepare_metadata()
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 537, in prepare_metadata
2019-07-02T17:31:43     self.run_egg_info()
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/req/req_install.py", line 615, in run_egg_info
2019-07-02T17:31:43     command_desc='python setup.py egg_info')
2019-07-02T17:31:43   File "/home/piwheels/.local/lib/python3.7/site-packages/pip/_internal/utils/misc.py", line 776, in call_subprocess
2019-07-02T17:31:43     % (command_desc, proc.returncode, cwd))
2019-07-02T17:31:43 pip._internal.exceptions.InstallationError: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-wheel-m2b6b7yw/micropython-weakref/