大家好,又见面了,我是全栈君。
看了你就懂了
https://segmentfault.com/a/1190000004079979
你在一个机器上 开发不通的项目,需要不通版本的python怎么办
1.首先安装python3
http://www.th7.cn/Program/Python/201512/743392.shtml
cd /usr/local/
curl -O https://www.python.org/ftp/python/3.5.0/Python-3.5.0.tgz
tar -zxf Python-3.5.0.tgz
cd Python-3.5.0/
./configure
make
make install
第三方的东西,最好下载到这个目录下
[root@hk45-node02-47 Python-3.5.0]# cd /usr/local
[root@hk45-node02-47 local]# ls
aegis bin etc games include lib lib64 libexec nginx nom Python-3.5.0 Python-3.5.0.tgz sbin share src
老的:
[root@hk45-node02-47 local]# /usr/bin/python -V
Python 2.7.5
[root@hk45-node02-47 local]# /usr/bin/pip -V
pip 8.1.2 from /usr/lib/python2.7/site-packages (python 2.7)
新的:
[root@hk45-node02-47 local]# /usr/local/bin/python3 -V
Python 3.5.0
[root@hk45-node02-47 local]# /usr/local/bin/pip3 -V
pip 7.1.2 from /usr/local/lib/python3.5/site-packages (python 3.5)
install python3.5 but you did not install pip3.5 , I suggest you to install python3.4 and pip3.4
el7 install python3.4 and pip3
[root@us44-47 local]# yum install epel-release -y
[root@us44-47 local]# yum install python34 -y
[root@us44-47 local]# curl https://bootstrap.pypa.io/get-pip.py | python3.4
[root@singapore-47 local]# which python3
/usr/local/bin/python3
[root@singapore-47 local]# which python3.4
/usr/bin/python3.4
[root@singapore-47 local]# which python3.5
/usr/local/bin/python3.5
[root@singapore-47 local]# ll /usr/local/bin/python3
lrwxrwxrwx 1 root root 9 6月 20 13:36 /usr/local/bin/python3 -> python3.5
[root@singapore-47 local]# ln -sf /usr/bin/python3.4 /usr/local/bin/python3
[root@singapore-47 local]# python3 -V
Python 3.4.3
2.安装virtualenv,virtualenvwrapper
[root@hk45-node02-47 local]# pip3 install virtualenv
[root@hk45-node02-47 local]# pip3 install virtualenvwrapper
自己心里要知道自己安装的virtualenvwrapper.sh在哪里
[root@hk45-node02-47 local]# which virtualenvwrapper.sh
/usr/local/bin/virtualenvwrapper.sh
[root@hk45-node02-47 local]# vim ~/.bashrc
添加:
export WORKON_HOME='~/.virtualenvs'
source /usr/bin/virtualenvwrapper.sh
以后,你就可以使用workon了
3.现在你的机器上有了python2.7 和python3,你需要用virtualenv 搞一个 python3的环境
方式1:不能用workon,每次都要source一下
[root@hk45-node02-47 ahao.mah]# virtualenv -p /usr/local/bin/python3 csvt15
Running virtualenv with interpreter /usr/local/bin/python3
Using base prefix '/usr/local'
New python executable in /home/ahao.mah/csvt15/bin/python3
Also creating executable in /home/ahao.mah/csvt15/bin/python
Installing setuptools, pip, wheel...done.
[root@hk45-node02-47 ahao.mah]# ll csvt15
总用量 16
drwxr-xr-x 2 root root 4096 6月 17 22:58 bin
drwxr-xr-x 2 root root 4096 6月 17 22:58 include
drwxr-xr-x 3 root root 4096 6月 17 22:58 lib
-rw-r--r-- 1 root root 60 6月 17 22:58 pip-selfcheck.json
方式2:可以用workon,简单方便,环境存储在$WORKON_HOME 下
[root@hk45-node02-47 ahao.mah]# mkvirtualenv -p /usr/local/bin/python3 csvt16
Running virtualenv with interpreter /usr/local/bin/python3
Using base prefix '/usr/local'
New python executable in /root/.virtualenvs/csvt16/bin/python3
Also creating executable in /root/.virtualenvs/csvt16/bin/python
Installing setuptools, pip, wheel...done.
virtualenvwrapper.user_scripts creating /root/.virtualenvs/csvt16/bin/predeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/csvt16/bin/postdeactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/csvt16/bin/preactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/csvt16/bin/postactivate
virtualenvwrapper.user_scripts creating /root/.virtualenvs/csvt16/bin/get_env_details
(csvt16) [root@hk45-node02-47 ahao.mah]# python -V
Python 3.5.0
转载于:https://www.cnblogs.com/muahao/p/6678736.html
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