我可以通过命令行连接到 Postgres 没问题，但是如果我尝试使用 psycopg2 模块通过 Python 连接，我会收到以下错误。有趣的是，我刚刚尝试连接 PSeqal.app，它因同样的错误而崩溃。
环境:
- 苹果操作系统:10.13.3
- Xcode 9.2
- python :3.6.4
- 连接模块:psycopg2
- PostgreSQL:10.3
脚本:
这是我尝试通过 Python 连接到 Postgresql 的简单连接脚本:
def connect(self, params):
""" Connect to the PostgreSQL database server """
conn = None
try:
# connect to the PostgreSQL server
logging.info('Connecting to the PostgreSQL database...')
conn = psycopg2.connect(**params)
# create a cursor
self.cursor = conn.cursor()
except (Exception, psycopg2.DatabaseError) as error:
print(error)
finally:
if conn is not None:
conn.close()
logging.warning('Database connection closed.')
错误:
脚本输出:
$ python3 testdb.py
Illegal instruction: 4
Apple 错误(部分):
Process: Python [79534]
Path: /usr/local/Cellar/python3/3.6.4_2/Frameworks/Python.framework/Versions/3.6/Resources/Python.app/Contents/MacOS/Python
Identifier: Python
Version: 3.6.4 (3.6.4)
Code Type: X86-64 (Native)
Parent Process: bash [657]
Responsible: Python [79534]
User ID: 501
Date/Time: 2018-03-02 15:30:27.642 +1300
OS Version: Mac OS X 10.13.3 (17D102)
Report Version: 12
Anonymous UUID: xx
Time Awake Since Boot: 21000 seconds
System Integrity Protection: disabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [0]
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0 libpq.5.10.dylib 0x00000001118e8d27 initPQExpBuffer + 32
1 libpq.5.10.dylib 0x00000001118dba93 PQconninfoParse + 43
2 _psycopg.cpython-36m-darwin.so 0x0000000111897cf1 psyco_parse_dsn + 113
3 org.python.python 0x000000010fd4681a _PyCFunction_FastCallDict + 463
4 org.python.python 0x000000010fdaad8e call_function + 489
5 org.python.python 0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
6 org.python.python 0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
7 org.python.python 0x000000010fda293d PyEval_EvalCodeEx + 57
8 org.python.python 0x000000010fd2ec76 function_call + 339
9 org.python.python 0x000000010fd0e9f2 PyObject_Call + 101
10 org.python.python 0x000000010fda3eac _PyEval_EvalFrameDefault + 5428
11 org.python.python 0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
12 org.python.python 0x000000010fda293d PyEval_EvalCodeEx + 57
13 org.python.python 0x000000010fd2ec76 function_call + 339
14 org.python.python 0x000000010fd0e9f2 PyObject_Call + 101
15 org.python.python 0x000000010fda3eac _PyEval_EvalFrameDefault + 5428
16 org.python.python 0x000000010fdabe93 _PyFunction_FastCall + 121
17 org.python.python 0x000000010fdaad65 call_function + 448
18 org.python.python 0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
19 org.python.python 0x000000010fdabe93 _PyFunction_FastCall + 121
20 org.python.python 0x000000010fd0eb71 _PyObject_FastCallDict + 196
21 org.python.python 0x000000010fd0ec94 _PyObject_Call_Prepend + 156
22 org.python.python 0x000000010fd0e9f2 PyObject_Call + 101
23 org.python.python 0x000000010fd598ae slot_tp_init + 57
24 org.python.python 0x000000010fd5683c type_call + 184
25 org.python.python 0x000000010fd0eb3c _PyObject_FastCallDict + 143
26 org.python.python 0x000000010fdaad5e call_function + 441
27 org.python.python 0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
28 org.python.python 0x000000010fdabe93 _PyFunction_FastCall + 121
29 org.python.python 0x000000010fd0eb71 _PyObject_FastCallDict + 196
30 org.python.python 0x000000010fd0ec94 _PyObject_Call_Prepend + 156
31 org.python.python 0x000000010fd0e9f2 PyObject_Call + 101
32 org.python.python 0x000000010fd598ae slot_tp_init + 57
33 org.python.python 0x000000010fd5683c type_call + 184
34 org.python.python 0x000000010fd0eb3c _PyObject_FastCallDict + 143
35 org.python.python 0x000000010fdaad5e call_function + 441
36 org.python.python 0x000000010fda3c43 _PyEval_EvalFrameDefault + 4811
37 org.python.python 0x000000010fdab4f0 _PyEval_EvalCodeWithName + 1719
38 org.python.python 0x000000010fda28fe PyEval_EvalCode + 42
39 org.python.python 0x000000010fdcb24e run_mod + 54
40 org.python.python 0x000000010fdca26f PyRun_FileExFlags + 160
41 org.python.python 0x000000010fdc994c PyRun_SimpleFileExFlags + 285
42 org.python.python 0x000000010fddd770 Py_Main + 3484
43 org.python.python 0x000000010fd01e1d 0x10fd00000 + 7709
44 libdyld.dylib 0x00007fff6c260115 start + 1
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x00007f86c3db9200 rbx: 0x00007ffedfefe3a0 rcx: 0x0000000000000100 rdx: 0x0000000000010000
rdi: 0x0000000000000b93 rsi: 0x00000000ffff0001 rbp: 0x00007ffedfefe390 rsp: 0x00007ffedfefe380
r8: 0x000000006c3db930 r9: 0x000000000000000f r10: 0x00000000ffff0000 r11: 0x00007f86c3d00000
r12: 0x0000000110665738 r13: 0x0000000111c68510 r14: 0x0000000111cb80b0 r15: 0x00007ffedfefe3a0
rip: 0x00000001118e8d27 rfl: 0x0000000000010206 cr2: 0x00000001118ef90e
Logical CPU: 2
Error Code: 0x00000000
Trap Number: 6
到目前为止我尝试了什么:
- 将 Python 从 3.5.1 升级到 3.6.4
- 重建所有依赖库，包括 psycopg2 以确保它们与 High Sierra 兼容(我希望如此)
- 从头开始重新安装 Postgres
- 升级的 Xcode + 工具
所以我对接下来要尝试什么感到有点茫然？还有其他人遇到过这个吗？任何指向哪里看的指针？任何能帮助我完成这项工作的东西都将不胜感激，谢谢!
最佳答案
所以看起来 psycopg2 库是罪魁祸首，这为我修复了它:
$pip3 uninstall psycopg2
...
Successfully uninstalled psycopg2-binary-2.7.4
$pip3 install psycopg2-binary --no-binary :all:
Collecting psycopg2-binary Downloading psycopg2-binary-2.7.4.tar.gz (426kB) 100% |---| 430kB 649kB/s Skipping bdist_wheel for psycopg2-binary, due to binaries being disabled for it. Installing collected packages: psycopg2-binary Running setup.py install for psycopg2-binary ... done
Successfully installed psycopg2-binary-2.7.4
$python3 test.py
Connecting to the PostgreSQL database...
All good.
Database connection closed.
我认为原因与我试图在 2010 时代的 MBP 上构建 psycopg2 的事实有关，它与硬件存在兼容性问题 - 可能是这台机器拥有的 2.66 GHz Intel Core i7 处理器。
感谢@Laurenz Albe 和@joop 的快速回复、指导和见解，你们帮助我缩小了这个答案的范围，我希望这个答案在这份工作期间保持稳定 ;) 干杯!
关于python - High Sierra + Python + Postgresql 错误 : Illegal instruction: 4，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/49062045/