1 问题现象

我在Mac Big Sur下使用pyenv安装python会有如下报错信息

BUILD FAILED (OS X 11.2.1 using python-build 1.2.24.1)

Inspect or clean up the working tree at /var/folders/c1/947bsm2j06q5kz4r0y99ynm40000gn/T/python-build.20210323112319.19225
Results logged to /var/folders/c1/947bsm2j06q5kz4r0y99ynm40000gn/T/python-build.20210323112319.19225.log

Last 10 log lines:
        ret = sendfile(in, out, offset, &sbytes, &sf, flags);
              ^
./Modules/posixmodule.c:10432:5: warning: code will never be executed [-Wunreachable-code]
    Py_FatalError("abort() called from Python code didn't abort!");
    ^~~~~~~~~~~~~
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/bzip2/include -I/usr/local/opt/readline/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include  -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/bzip2/include -I/usr/local/opt/readline/include -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include  -std=c99 -Wextra -Wno-unused-result -Wno-unused-parameter -Wno-missing-field-initializers -Wstrict-prototypes   -I. -I./Include -I/usr/local/opt/readline/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl@1.1/include -I/Users/didi/.pyenv/versions/3.6.8/include  -I/usr/local/opt/readline/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl@1.1/include -I/Users/didi/.pyenv/versions/3.6.8/include   -DPy_BUILD_CORE  -c ./Modules/pwdmodule.c -o Modules/pwdmodule.o
1 warning and 1 error generated.
make: *** [Modules/posixmodule.o] Error 1
make: *** Waiting for unfinished jobs....
1 warning generated.

2 解决办法

1 reinstall zlib bzip2

brew reinstall zlib bzip2

2 update .zshrc or .bashrc dependent on your shell

export PATH="$HOME/.pyenv/bin:$PATH"
export PATH="/usr/local/bin:$PATH"

eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
export LDFLAGS="-L/usr/local/opt/zlib/lib -L/usr/local/opt/bzip2/lib"
export CPPFLAGS="-I/usr/local/opt/zlib/include -I/usr/local/opt/bzip2/include"

3 install python 3.6.8, you can change the version

CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.6.8 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)

4 If it didn't work try and repeat step 3 again

sudo rm -rf /Library/Developer/CommandLineTools
xcode-select --install