In a message of Wed, 16 Sep 2015 17:35:18 +0800, "chenc...@inhand.com.cn" write s: >hi: >I encountered a problem. I use ctypes load multiple C libraries, but >the libraries have dependence each other.So, how can i load these >libraries. For example, I have two libraries:A、B, but A depends on B, B >depends on A. So how do I load them? Is there anybody know how to do it?
I don't know how to do this with ctypes (which doesn't mean it cannot be done, just that I haven't ever wanted to do this). What happens if you make a small file that loads both separately and loads that one first? It may be that you can get what you want with by loading the first lib RTLD_LAZY instead of RTLD_NOW. see: http://stackoverflow.com/questions/22591472/dyanamic-library-linking-by-rtld-lazy see: this very old thread, maybe CTypes knows about it now. http://osdir.com/ml/python.ctypes/2006-10/msg00029.html But I have never tried. These days I used cffi instead of ctypes. If you use cffi https://pypi.python.org/pypi/cffi there should not be any problem if you use ffi.set_source(), only once, but mentioning both libs in the libraries=[...] argument. Laura -- https://mail.python.org/mailman/listinfo/python-list