升级python2.6===升级至3.6.1版本
虚拟机安装的linux 6.7版本，自带的python是2.6，如果不需要升级python版本的可以直接安装ipython# python -V----查看python版本
# yum install python-pip
# pip install ipython
# pip install ipython==1.2.1 --指定版本安装ipython
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现在需要升级python版本 到3.6.1
步骤如下
# cd/usr/local/src#进下载目录
# wget https://www.python.org/ftp/python/3.6.1/Python-3.6.1.tar.xz
# 下载python-3.6.1
# tar xvf Python-3.6.1.tar.xz #解压安装包
# cd Python-3.6.1
# ./configure --prefix=/usr/local/python3 #配置编译安装目录
# make
# make install
编译时出现报错：
zipimport.ZipImportError: can't decompress data; zlib not available
http://www.zlib.net/
# wget http://www.zlib.net/zlib-1.2.11.tar.gz #下载包
# cd zlib-1.2.11
# ./configure #编译
# make&& make install
# cp /usr/local/python3/bin/python3/usr/bin/python3
# ln -s /usr/local/python3/bin/python3 /usr/bin/python3
# python3
Python 3.6.1 (default, Jun 26 2017, 20:50:33)
on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> ####版本已升级为Python 3.6.1
安装pip3
root@adsl-172-10-0-3 src]# wget https://pypi.python.org/packages/75/03/bb1ce0cf9f8a86f52b34090708e1806bc11e2d29b193e7d6fe0afe9a61e5/ipython-6.0.0.tar.gz#md5=4169cfe24253c342d7a0b966f5c76281
##下载ipython包
# tar zxvf ipython-6.0.0.tar.gz
# python setup.py install
# /usr/local/python3/bin/pip3 install traitlets pygments pexpect pickleshare prompt_toolkit simplegeneric###安装pip 包
# /usr/local/python3/bin/ipython3
/usr/local/python3/lib/python3.6/site-packages/IPython/core/history.py:227: UserWarning: IPython History requires SQLite, your history will not be saved
warn("IPython History requires SQLite, your history will not be saved")
Python 3.6.1 (default, Jun 26 2017, 20:50:33)
Type 'copyright', 'credits' or 'license' for more information
IPython 6.0.0 -- An enhanced Interactive Python. Type '?' for help.
In : ###已成功可以使用 ipyhon
# ln -s /usr/local/python3/bin/ipython3 /usr/bin/ipython3##软连接
总结：
python2.6升级到python3.6.1版本，同时配合ipython3 使用
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