There is an answer that fixes this lib error and better explains why this is happening and how to fix it hereMac OS X Lion Psycopg2: Symbol not found: _PQbackendPID Share Improve this answer answeredSep 3, 2020 at 21:28 bgar2021 ...
import core File "/Users/qle/Library/Python/3.8/lib/python/site-packages/rtree/core.py", line 77, in <module> rt.Error_GetLastErrorNum.restype = ctypes.c_int File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/ctypes/__init__.py", line 386, in __getattr__ f...
import lxml.etree as ET ImportError: dlopen(/Users/a3kaur/Documents/python_venvs/ctaenv/lib/python3.8/site-packages/lxml/etree.cpython-38-darwin.so, 0x0002): symbol not found in flat namespace '_exsltDateXpathCtxtRegister'
( 0x21 0x3C 0x61 0x72 0x63 0x68 0x3E 0x0A 0x2F 0x20 0x20 0x20 0x20 0x20 0x20 0x20 ) Undefined symbols for architecture arm64: "_Py_BytesMain", referenced from: _main in python.o ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit ...
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/selectors.py", line 12, in <module> import select ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/lib-dynload/select.cpython-38-darwin.so, 2): Symbol not found: ___chkstk_darwin Referenced...
盲猜一个结论： 芯片的指令集不一样
ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/pymssql/_mssql.cpython-39-darwin.so, 0x0002): symbolnotfoundinflat namespace'_iconv' 经查询,为版本兼容问题,需要将pymssql 版本改为2.1.5. pip3 install"pymssql == 2.1.5" ...
调用函数、变量的方式错误；检查下 Symbol 变量名和函数名是不是用重复了 比如：>>>str="abc">>>x=123 >>>str(x)就会报错TypeError: 'str' object is not callable,因为上面已经定义了str变量，定义之后下面的str()函数就变成不可调用的了，变量名和函数名重复了 ...
Missing dependency: The librarylibpyg.somay depend on another library or package that is not installed or not accessible. Incompatible versions: The librarylibpyg.somay have been compiled against a different version of the dependency, causing symbol mismatch. ...
python变量名和Symbol地name属性之间没有必然联系, 变量名和符号名可以不一样 var(): 快速创建符号以及与之同名的变量(交互式环境) symbols(): 创建多个Symbol对象,显式赋值给py变量 1.1 创建符号 from sympy import * 1. var("x0,x1,y0,y1")