Traceback (most recent call last):
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/ensurepip/__main__.py", line 5, in <module>
sys.exit(ensurepip._main())
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/ensurepip/__init__.py", line 204, in _main
default_pip=args.default_pip,
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/ensurepip/__init__.py", line 117, in _bootstrap
return _run_pip(args + [p[0] for p in _PROJECTS], additional_paths)
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/ensurepip/__init__.py", line 27, in _run_pip
import pip._internal
File "/tmp/tmpirqvyjxt/pip-10.0.1-py2.py3-none-any.whl/pip/_internal/__init__.py", line 42, in <module>
File "/tmp/tmpirqvyjxt/pip-10.0.1-py2.py3-none-any.whl/pip/_internal/cmdoptions.py", line 16, in <module>
File "/tmp/tmpirqvyjxt/pip-10.0.1-py2.py3-none-any.whl/pip/_internal/index.py", line 25, in <module>
File "/tmp/tmpirqvyjxt/pip-10.0.1-py2.py3-none-any.whl/pip/_internal/download.py", line 39, in <module>
File "/tmp/tmpirqvyjxt/pip-10.0.1-py2.py3-none-any.whl/pip/_internal/utils/glibc.py", line 3, in <module>
File "/tmp/python-build.20180910235918.12705/Python-3.7.0/Lib/ctypes/__init__.py", line 7, in <module>
from _ctypes import Union, Structure, Array
ModuleNotFoundError: No module named '_ctypes'
Makefile:1122: recipe for target 'install' failed
make: *** [install] Error 1
BUILD FAILED (Ubuntu 18.04 using python-build 1.2.7-3-g5603eb51)