使用“ pip install mysql-python”，但不起作用，如何解決

Question

我是Python的新手，我想安裝mysqldb模塊來連接到我的數據庫，我已經嘗試過“ pip install mysql-python”，終端顯示：

sudo pip install mysql-python
The directory '/Users/suoliyun/Library/Caches/pip/http' or its parent directory is not owned by the current user and the cache has been disabled. Please check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
The directory '/Users/suoliyun/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
Collecting mysql-python
  Downloading MySQL-python-1.2.5.zip (108kB)
    100% |████████████████████████████████| 112kB 1.9MB/s 
Installing collected packages: mysql-python
  Running setup.py install for mysql-python ... error
    Complete output from command /Users/suoliyun/Library/Enthought/Canopy/edm/envs/User/Resources/Python.app/Contents/MacOS/Python -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-DCyMvD/mysql-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-1dVZC1-record/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.6-x86_64-2.7
    copying _mysql_exceptions.py -> build/lib.macosx-10.6-x86_64-2.7
    creating build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/__init__.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/converters.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/connections.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/cursors.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/release.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    copying MySQLdb/times.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb
    creating build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/__init__.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/CR.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/ER.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/FLAG.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/REFRESH.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    copying MySQLdb/constants/CLIENT.py -> build/lib.macosx-10.6-x86_64-2.7/MySQLdb/constants
    running build_ext
    building '_mysql' extension
    creating build/temp.macosx-10.6-x86_64-2.7
    gcc -fno-strict-aliasing -fno-common -dynamic -g -arch x86_64 -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -Dversion_info=(1,2,5,'final',1) -D__version__=1.2.5 -I/usr/local/Cellar/mysql/5.7.18_1/include/mysql -I/Users/suoliyun/Library/Enthought/Canopy/edm/envs/User/include/python2.7 -c _mysql.c -o build/temp.macosx-10.6-x86_64-2.7/_mysql.o
    _mysql.c:1589:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
            if (how < 0 || how >= sizeof(row_converters)) {
                ~~~ ^ ~
    1 warning generated.
    gcc -bundle -undefined dynamic_lookup -g -arch x86_64 -headerpad_max_install_names -arch x86_64 build/temp.macosx-10.6-x86_64-2.7/_mysql.o -L/usr/local/Cellar/mysql/5.7.18_1/lib -lmysqlclient -lssl -lcrypto -o build/lib.macosx-10.6-x86_64-2.7/_mysql.so
    ld: library not found for -lssl
    clang: error: linker command failed with exit code 1 (use -v to see invocation)
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/Users/*/Library/Enthought/Canopy/edm/envs/User/Resources/Python.app/Contents/MacOS/Python -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-DCyMvD/mysql-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-1dVZC1-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/tmp/pip-build-DCyMvD/mysql-python/

如何解決？ 這是什么意思？ 謝謝！

Answer 1

每當您安裝任何與項目相關的python庫時，請始終在相應的虛擬環境中安裝這些庫

1. pip install virtualenv

這將安裝virtualenv，現在創建一個名為雜類的虛擬環境

2. virtualenv miscellaneous

這將在工作目錄中創建一個名為雜類的虛擬環境

3. source miscellaneous/bin/activate

這將啟動虛擬環境，現在您將安裝的所有庫都將安裝在該環境中

4. pip install MySQL-python