ImportError: pycurl: libcurl link-time version (7.37.1) is older than compile-time version (7.43.0)

hello, i got a problem. i've google many times and still can't solve it. after i pip install pyspider , and try to run pyspider.it displayed the error "Error: Could not create web server listening on port 25555 ImportError: pycurl: libcurl link-time version (7.37.1) is older than compile-time version (7.43.0)" My system is MAC OS YOSEMITE，python 3.5。