1.安装环境：Centos7.2+python3.6
2.yum安装libcurl-devel

yum install libcurl-devel

3.下载curl

wget https://curl.haxx.se/download/curl-7.61.0.tar.gz

4.解压

tar -zxvf curl-7.61.0.tar.gz

5.到解压后的curl文件夹中，进行编译安装

cd curl-7.61.0/
./configure 
make && make install
export LD_LIBRARY_PATH=/usr/local/lib

6.pip安装完成

pip3 install pycurl

关于运行脚本后的报错：

ImportError: pycurl: libcurl link-time version (7.29.0) is older than compile-time version (7.61.0)

解决方法：

cp /usr/local/lib/libcurl.so /usr/lib64/
编译安装pycurl
按照以上方式安装完成之后，假如在python2环境下可以正常import，但是在python3环境下报错：ModuleNotFoundError: 
No module named ‘pycurl’

处理方法如下：
1.查看curl版本

curl -V
#显示版本为：curl 7.61.0

2.查看旧版本

rpm -qa curl
#显示版本为：curl-7.29.0-51.el7.x86_64

3.卸载旧版本

rpm -e --nodeps curl-7.29.0-51.el7.x86_64
rpm -qa curl
export LD_LIBRARY_PATH=/usr/local/lib
echo $?
0

4.卸载pycurl

 pip uninstall pycurl

5.下载pycurl安装包

wget https://pypi.python.org/packages/source/p/pycurl/pycurl-7.43.0.3.tar.gz

6.开始安装pycurl

tar -zxvf pycurl-7.43.0.3.tar.gz 
cd pycurl-7.43.0.3/
python setup.py install --curl-config=/usr/local/bin/curl-config

7.进行import测试

[root@mail pycurl-7.43.0.3]# python
Python 3.6.0 (default, Sep 20 2019, 20:23:48) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pycurl
>>>