阿里云服务器问题

今天买了阿里云服务器的云翼计划的学生服务器，配置听说是入门级的，对于我这种新手来讲都是差很少的了，遇到一些问题：

CentOS7使用Yum源安装Python3.6

IUS软件源中包含了Python3.6，能够使用IUS软件源安装Python3.6

1）安装IUS软件源

1 #安装EPEL依赖
2 sudo yum install epel-release
3 
4 #安装IUS软件源
5 sudo yum install https://centos7.iuscommunity.org/ius-release.rpm

2）安装Python3.6

1 sudo yum install python36u

安装Python3完成后的shell命令为python3.6，为了使用方便，建立一个到python3的符号连接

1 sudo ln -s /bin/python3.6 /bin/python3

3）安装pip3

安装完成python36u并无安装pip，安装pip

1 sudo yum install python36u-pip

安装pip完成后的shell命令为pip3.6，为了使用方便，建立一个到pip3的符号连接

sudo ln -s /bin/pip3.6 /bin/pip3

使用上述方法建立的符号连接来安装模块的时候出现问题

1  #include "Python.h"
2                         ^
3     compilation terminated.
4     error: command 'gcc' failed with exit status 1
5     
6     ----------------------------------------
7 Command "/usr/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-9igalvkz/Twisted/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-tesv2pzh/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-9igalvkz/Twisted/

解决方案：

1 yum search python3 | grep devel

 1 [root@iZ2zebg8yn9qw8bqhc9isxZ ~]# yum search python3 | grep devel
 2 python34-cairo-devel.x86_64 : Libraries and headers for python34-cairo
 3 python34-greenlet-devel.x86_64 : C development headers for python34-greenlet
 4 python34-devel.x86_64 : Libraries and header files needed for Python 3
 5                       : development
 6 python34-gobject-devel.x86_64 : Development files for embedding Python 3.4
 7 python34u-devel.x86_64 : Libraries and header files needed for Python 3
 8                        : development
 9 python35u-devel.x86_64 : Libraries and header files needed for Python 3
10                        : development
11 python36-devel.x86_64 : Libraries and header files needed for Python development
12 python36-idle.x86_64 : A basic graphical development environment for Python
13 python36u-devel.x86_64 : Libraries and header files needed for Python
14                        : development
15 shiboken-python34-devel.x86_64 : Development files for shiboken

找到 python36u-devel 执行：

1 sudo yum install python36u-devel

执行完毕以后，再次执行安装指令：

1 pip3 install scrapy

执行成功，安装完毕。