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Python从2.7.5升级到3.6.5

Python从2.7.5升级到3.6.5
学习了:https://blog.csdn.net/liang19890820/article/details/51079633

wget https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz
tar -zxvf Python-3.6.5.tgz
cd Python-3.6.5
./configure
make
sudo make install
sudo mv /usr/bin/python /usr/bin/python.bak
sudo ln -s /usr/local/bin/python3 /usr/bin/python
sudo vi /usr/bin/yum
sudo vi /usr/libexec/urlgrabber-ext-down

进行pip安装:

wget https://files.pythonhosted.org/packages/ae/e8/2340d46ecadb1692a1e455f13f75e596d4eab3d11a57446f08259dee8f02/pip-10.0.1.tar.gz
tar -zxvf pip-10.0.1.tar.gz
sudo python setup.py install
pip install requests
pip install pymysql
pip list

 

安装之后,pip list竟然没有对应的模块;

还是有问题的,需要指定python的版本:竟然直接运行还是不行的;

学习了:https://www.cnblogs.com/shabbylee/p/6792555.html

sudo python -m pip install requests

sudo python -m pip install pymysql

 学习了:https://www.cnblogs.com/maoguy/p/6670988.html

-m表示以模块方式运行;

的确可以看出差别,用命令

python2 -m pip list显示出来的模块就要多一些;

而且用python2 进入命令行,可以import一些python3里面没有的模块;

 

posted @ 2018-05-27 22:39  stono  阅读(171)  评论(0编辑  收藏  举报