我在MacOS上运行mysql@8.x版本,我已经用brew安装了mysql和mysql-connector-o。目前与mysql的brew链接。
在我的python3虚拟环境中运行Django项目时,我收到以下错误-
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named 'MySQLdb'. Did you install mysqlclient or MySQL-python?
并在使用pip安装mysqlclient时,出现以下错误
clang -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk/System/Library/Frameworks/Tk.framework/Versions/8.5/Headers -Dversion_info=(1,3,13,'final',0) -D__version__=1.3.13 -I/usr/local/Cellar/mysql/8.0.12/include/mysql -I/usr/local/Cellar/python/3.6.5/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c _mysql.c -o build/temp.macosx-10.13-x86_64-3.6/_mysql.o clang -bundle -undefined dynamic_lookup -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk build/temp.macosx-10.13-x86_64-3.6/_mysql.o -L/usr/local/Cellar/mysql/8.0.12/lib -lmysqlclient -lssl -lcrypto -o build/lib.macosx-10.13-x86_64-3.6/_mysql.cpython-36m-darwin.so ld: library not found for -lssl clang: error: linker command failed with exit code 1 (use -v to see invocation) error: command 'clang' failed with exit status 1 ---------------------------------------- Command "/Volumes/Samsung_T5/Work/python/repos/venv3/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-install-kf2fkhtc/mysqlclient/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/tmp/pip-record-qwpjjw3e/install-record.txt --single-version-externally-managed --compile --install-headers /Volumes/Samsung_T5/Work/python/repos/venv3/bin/../include/site/python3.6/mysqlclient" failed with error code 1 in /private/tmp/pip-install-kf2fkhtc/mysqlclient/
正如jordanm所指出的,问题恰恰与缺少的openssl库有关,为此,我按照以下步骤修复了我的问题-
安装openssl
brew install openssl
现在 pip install mysqlclient应该可以工作了。
pip install mysqlclient
如果没有,仍然显示相同的错误library not found for -lssl,您也可以尝试链接brew的openssl:
library not found for -lssl
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip install mysqlclient
如果仍然无法执行,则可能需要使用pip的–no-cache选项,例如
env LDFLAGS="-I/usr/local/opt/openssl/include -L/usr/local/opt/openssl/lib" pip --no-cache install mysqlclient