python——平时遇到问题记录

# pyhs2安装

#centos
yum install groupinstall 'development tools'
yum install python34-devel
yum install libevent-devel
pip install gevent
yum install cyrus-sasl-plain  cyrus-sasl-devel  cyrus-sasl-gssapi
pip install pyhs2
pip install thrift-sasl==0.2.1

#ubuntu
apt install sasl2-bin libsasl2-2 libsasl2-dev
pip install gevent
pip install thrift-sasl==0.2.1
pip install pyhs2

# 安装tensorflow时报Cannot uninstall wrapt

pip install -U --ignore-installed wrapt enum34 simplejson netaddr

# import matplotlib时报缺少Libgl.so.1

yum install libglvnd
或者
yum install mesa-libGL

# 安装psycopg2时报错，Command "python setup.py egg_info" failed with error code 1

yum install python-devel postgresql-devel

# gcc或者g++报错

yum install gcc gcc-c++

# Can't connect to HTTPS URL because the SSL module is not available

1. 使用anaconda的虚拟环境时
由于anaconda的使用的是自带的ssl模块，而不使用系统的openssl库，需要复制libcrypto.so和libssl.so两个动态链接库到虚拟环境的lib目录下

2. 使用编译python环境
编译前
yum install libffi-devel    # 有这个才能编译出_ctypes模块
yum install openssl openssl-devel   # 有这个才能编译出ssl功能 
openssl version    # 确认版本1.0.2及以上

编译
./configure --prefix=/usr/local/python3 --with-ssl
make -j4    #使用4核CPU编译
make install