name 'KS_ARCH_X86' is not defined

[yogistudio]

File "E:/tools/idapro/plugins/keypatch.py", line 268, in Keypatch_Asm
"X86 16-bit": (KS_ARCH_X86, KS_MODE_16), # X86 16-bit

[RainbowXie]

Install keystone-engine rather than keystone.

[Celestine45m]

add 'keystone.dll', 'libkeystone.so', 'libkeystone.so.%u' %KS_API_MAJOR, 'libkeystone.dylib' into python3/lib/site-packages/keystone;
one of these file is enough, it's depended on you pc