我正在尝试安装mysql-pythonPython 2.7.10 中使用命令的库pip install mysql-python。这会导致以下错误：
Collecting mysql-python
Using cached MySQL-python-1.2.5.zip
Building wheels for collected packages: mysql-python
Running setup.py bdist_wheel for mysql-python ... error
Complete output from command /Users/matt/env/identity/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-build-VuUKuW/mysql-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/tmpmJbYFMpip-wheel- --python-tag cp27:
running bdist_wheel
running build
running build_py
creating build
creating build/lib.macosx-10.13-intel-2.7
copying _mysql_exceptions.py -> build/lib.macosx-10.13-intel-2.7
creating build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/__init__.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/converters.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/connections.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/cursors.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/release.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/times.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
creating build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/__init__.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/CR.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/ER.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/FLAG.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/REFRESH.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/CLIENT.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
running build_ext
building '_mysql' extension
creating build/temp.macosx-10.13-intel-2.7
cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch x86_64 -pipe -Dversion_info=(1,2,5,'final',1) -D__version__=1.2.5 -I/usr/local/Cellar/mysql/5.7.19/include/mysql -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c _mysql.c -o build/temp.macosx-10.13-intel-2.7/_mysql.o
_mysql.c:287:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
cmd_argc = PySequence_Size(cmd_args);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:317:12: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
groupc = PySequence_Size(groups);
~ ^~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:470:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
int j, n2=PySequence_Size(fun);
~~ ^~~~~~~~~~~~~~~~~~~~
_mysql.c:1127:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1129:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_escape_string(out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1168:9: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
size = PyString_GET_SIZE(s);
~ ^~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:92:32: note: expanded from macro 'PyString_GET_SIZE'
#define PyString_GET_SIZE(op) Py_SIZE(op)
^~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/object.h:116:56: note: expanded from macro 'Py_SIZE'
#define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size)
~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
_mysql.c:1178:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1180:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_escape_string(out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1274:11: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
if ((n = PyObject_Length(o)) == -1) goto error;
~ ^~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/abstract.h:434:25: note: expanded from macro 'PyObject_Length'
#define PyObject_Length PyObject_Size
^
_mysql.c:1466:10: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1468:10: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1504:11: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1506:11: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1589:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (how < 0 || how >= sizeof(row_converters)) {
~~~ ^ ~
14 warnings generated.
In file included from _mysql.c:44:
/usr/local/Cellar/mysql/5.7.19/include/mysql/my_config.h:173:9: warning: 'SIZEOF_LONG' macro redefined [-Wmacro-redefined]
#define SIZEOF_LONG 8
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pymacconfig.h:54:17: note: previous definition is here
# define SIZEOF_LONG 4
^
In file included from _mysql.c:44:
/usr/local/Cellar/mysql/5.7.19/include/mysql/my_config.h:178:9: warning: 'SIZEOF_TIME_T' macro redefined [-Wmacro-redefined]
#define SIZEOF_TIME_T 8
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pymacconfig.h:57:17: note: previous definition is here
# define SIZEOF_TIME_T 4
^
_mysql.c:1589:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (how < 0 || how >= sizeof(row_converters)) {
~~~ ^ ~
3 warnings generated.
cc -bundle -undefined dynamic_lookup -arch x86_64 -arch i386 -Wl,-F. build/temp.macosx-10.13-intel-2.7/_mysql.o -L/usr/local/Cellar/mysql/5.7.19/lib -lmysqlclient -lssl -lcrypto -o build/lib.macosx-10.13-intel-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 'cc' failed with exit status 1
----------------------------------------
Failed building wheel for mysql-python
Running setup.py clean for mysql-python
Failed to build mysql-python
Installing collected packages: mysql-python
Running setup.py install for mysql-python ... error
Complete output from command /Users/matt/env/identity/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-build-VuUKuW/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 /var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-S7QKxD-record/install-record.txt --single-version-externally-managed --compile --install-headers /Users/matt/env/identity/include/site/python2.7/mysql-python:
running install
running build
running build_py
creating build
creating build/lib.macosx-10.13-intel-2.7
copying _mysql_exceptions.py -> build/lib.macosx-10.13-intel-2.7
creating build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/__init__.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/converters.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/connections.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/cursors.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/release.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
copying MySQLdb/times.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb
creating build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/__init__.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/CR.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/ER.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/FLAG.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/REFRESH.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
copying MySQLdb/constants/CLIENT.py -> build/lib.macosx-10.13-intel-2.7/MySQLdb/constants
running build_ext
building '_mysql' extension
creating build/temp.macosx-10.13-intel-2.7
cc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch x86_64 -pipe -Dversion_info=(1,2,5,'final',1) -D__version__=1.2.5 -I/usr/local/Cellar/mysql/5.7.19/include/mysql -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c _mysql.c -o build/temp.macosx-10.13-intel-2.7/_mysql.o
_mysql.c:287:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
cmd_argc = PySequence_Size(cmd_args);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:317:12: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
groupc = PySequence_Size(groups);
~ ^~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:470:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
int j, n2=PySequence_Size(fun);
~~ ^~~~~~~~~~~~~~~~~~~~
_mysql.c:1127:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1129:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_escape_string(out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1168:9: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
size = PyString_GET_SIZE(s);
~ ^~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:92:32: note: expanded from macro 'PyString_GET_SIZE'
#define PyString_GET_SIZE(op) Py_SIZE(op)
^~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/object.h:116:56: note: expanded from macro 'Py_SIZE'
#define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size)
~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
_mysql.c:1178:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1180:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = mysql_escape_string(out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1274:11: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int' [-Wshorten-64-to-32]
if ((n = PyObject_Length(o)) == -1) goto error;
~ ^~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/abstract.h:434:25: note: expanded from macro 'PyObject_Length'
#define PyObject_Length PyObject_Size
^
_mysql.c:1466:10: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1468:10: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1504:11: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1506:11: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1589:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (how < 0 || how >= sizeof(row_converters)) {
~~~ ^ ~
14 warnings generated.
In file included from _mysql.c:44:
/usr/local/Cellar/mysql/5.7.19/include/mysql/my_config.h:173:9: warning: 'SIZEOF_LONG' macro redefined [-Wmacro-redefined]
#define SIZEOF_LONG 8
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pymacconfig.h:54:17: note: previous definition is here
# define SIZEOF_LONG 4
^
In file included from _mysql.c:44:
/usr/local/Cellar/mysql/5.7.19/include/mysql/my_config.h:178:9: warning: 'SIZEOF_TIME_T' macro redefined [-Wmacro-redefined]
#define SIZEOF_TIME_T 8
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pymacconfig.h:57:17: note: previous definition is here
# define SIZEOF_TIME_T 4
^
_mysql.c:1589:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (how < 0 || how >= sizeof(row_converters)) {
~~~ ^ ~
3 warnings generated.
cc -bundle -undefined dynamic_lookup -arch x86_64 -arch i386 -Wl,-F. build/temp.macosx-10.13-intel-2.7/_mysql.o -L/usr/local/Cellar/mysql/5.7.19/lib -lmysqlclient -lssl -lcrypto -o build/lib.macosx-10.13-intel-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 'cc' failed with exit status 1
----------------------------------------
Command "/Users/matt/env/identity/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-build-VuUKuW/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 /var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-S7QKxD-record/install-record.txt --single-version-externally-managed --compile --install-headers /Users/matt/env/identity/include/site/python2.7/mysql-python" failed with error code 1 in /private/var/folders/jd/57tcbb295t13k0t10kvrqrxh0000gn/T/pip-build-VuUKuW/mysql-python/
我已经在 StackOverflow 中搜索了这个问题，并且已经尝试了各种修复方法。
xcode-select --install给出以下信息：
xcode-select: error: command line tools are already installed, use "Software Update" to install updates
一个答案here https://stackoverflow.com/a/40592989/5083045建议尝试这段代码：
brew uninstall mysql
brew install mysql-connector-c
pip install mysql-python
brew unlink mysql-connector-c
brew install mysql
我已经运行了这个，错误消息没有改变。跑步brew list表明mysql, mysql-connector-c and openssl已安装。
请注意，我使用的是 macOS High Sierra 测试版，这可能就是其他各种修复程序不起作用的原因。
