Error when trying to install.

Tried to install Instapy. When it could not, it suggested I share my error message here. Please advise.

ERROR: Command errored out with exit status 1:
command: /Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-install-wpcpf65p/regex/setup.py'"'"'; __file__='"'"'/private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-install-wpcpf65p/regex/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-record-2l2xt1fm/install-record.txt --single-version-externally-managed --compile --install-headers /Library/Frameworks/Python.framework/Versions/3.8/include/python3.8/regex
cwd: /private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-install-wpcpf65p/regex/
Complete output (17 lines):
running install
running build
running build_py
creating build
creating build/lib.macosx-10.9-x86_64-3.8
creating build/lib.macosx-10.9-x86_64-3.8/regex
copying regex_3/__init__.py -> build/lib.macosx-10.9-x86_64-3.8/regex
copying regex_3/regex.py -> build/lib.macosx-10.9-x86_64-3.8/regex
copying regex_3/_regex_core.py -> build/lib.macosx-10.9-x86_64-3.8/regex
copying regex_3/test_regex.py -> build/lib.macosx-10.9-x86_64-3.8/regex
running build_ext
building 'regex._regex' extension
creating build/temp.macosx-10.9-x86_64-3.8
creating build/temp.macosx-10.9-x86_64-3.8/regex_3
gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -I/Library/Frameworks/Python.framework/Versions/3.8/include/python3.8 -c regex_3/_regex.c -o build/temp.macosx-10.9-x86_64-3.8/regex_3/_regex.o
xcode-select: note: no developer tools were found at '/Applications/Xcode.app', requesting install. Choose an option in the dialog to download the command line developer tools.
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /Library/Frameworks/Python.framework/Versions/3.8/bin/python3.8 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-install-wpcpf65p/regex/setup.py'"'"'; __file__='"'"'/private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-install-wpcpf65p/regex/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /private/var/folders/ls/n78nsrps7g11kns59t2n659r0000gn/T/pip-record-2l2xt1fm/install-record.txt --single-version-externally-managed --compile --install-headers /Library/Frameworks/Python.framework/Versions/3.8/include/python3.8/regex Check the logs for full command output.

The report points to pip building regex from regex/setup.py under Python 3.8 on macOS, then failing because gcc and the Xcode command-line tools are absent. Start by checking the project's installation instructions and dependency setup, reproduce the pip install, and treat the issue as done only when the documented install completes without this build error.

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