macOS에서 pyexpat 모듈 못찾는 문제 해결

macOS에서 pyenv install 시 아래와 같은 메시지와 함께 설치가 안되는 문제가 발생하는 경우가 있다.

~ » pyenv install 3.8.1
Installing openssl-1.1.0j...
Installed openssl-1.1.0j to /Users/charles/.pyenv/versions/3.8.1

python-build: use readline from homebrew
Installing Python-3.8.1...
python-build: use readline from homebrew
python-build: use zlib from xcode sdk

BUILD FAILED (OS X 10.14.3 using python-build 20180424)

Inspect or clean up the working tree at /var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/python-build.20200307180551.1839
Results logged to /var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/python-build.20200307180551.1839.log

Last 10 log lines:
  File "<frozen zipimport>", line 259, in load_module
  File "/var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/tmpnzts9bjh/pip-19.2.3-py2.py3-none-any.whl/pip/_internal/utils/misc.py", line 21, in <module>
  File "<frozen zipimport>", line 259, in load_module
  File "/var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/tmpnzts9bjh/pip-19.2.3-py2.py3-none-any.whl/pip/_vendor/pkg_resources/__init__.py", line 35, in <module>
  File "/private/var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/python-build.20200307180551.1839/Python-3.8.1/Lib/plistlib.py", line 65, in <module>
    from xml.parsers.expat import ParserCreate
  File "/private/var/folders/tf/x42t0bkd7tq356r84rsbc3fm0000gn/T/python-build.20200307180551.1839/Python-3.8.1/Lib/xml/parsers/expat.py", line 4, in <module>
    from pyexpat import *
ModuleNotFoundError: No module named 'pyexpat'
make: *** [install] Error 1

이 경우 해결책 링크를 참고하여 아래와 같이 해결할 수 있다.

sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install
pkgutil --pkg-info=com.apple.pkg.CLTools_Executables
pyenv install 3.8.1