Fix python3 after installing Pycurl in import pycurl times error

The problem this time is in import pycurl times wrong

pycurl:libcurl link-time version is older than compile-time version

I have read a lot of explanations and methods on the Internet, but I haven't solved and analyzed this problem well. Let me tell you my own process first

1. Installation of centos7, es11EN2.7 is the default installation, and python3 is later installed using src. Similarly, the package of curl-7.61 and pycurl-7.43 should be the latest

2, make first & & make install installed curl-7.61, went to /usr/local, then python3 setup.ES28en install installed pycurl-7.43

3, in Import pycurl times wrong as above error

Solution process:

Have checked all kinds of methods on the Internet, have tried and failed to solve the problem, so calm down to carefully read the error content pycurl:libcurl ES41en-ES42en is older than ES47en-ES48en version

English 1 is normal, so I read that the version of the libcurl connection is older than the current compiled version, so I compared the contents of the following two folders

Under/usr lib ll libcur *

and

Under/usr/local/lib ll libcurl *

The contents are as follows

libcurl.so.4- > libcurl.so.4.3.0
libcurl.so.4.3.0

and

libcurl.a
libcurl.la
libcurl.so- > libcurl.so.4.5.0
libcurl.so.4- > libcurl.so.4.5.0
licburl.4.5.0

Then I wonder if it is caused by using libcurl.4.3.0 under /usr/lib when installing pycurl, so first

pip3 uninstall pycurl unloaded pycurl

And then make again & & make install curl-7.61

Then enter /usr/lib to libcurl. so. 4- > libcurl.so.4.3.0

Delete is then created with ln-ES123en

libcurl.so- > /usr/local/lib/libcurl.so.4.5.0

libcurl.so.4- > /usr/local/lib/libcurl.so.4.5

Then python3 setup. py install pycurl

Enter python3 again, import pycurl is normal, so let's summarize

This is probably the result of using an old library when installing pycurl