python 常用技巧
1、 打印当前python 的安装包位置
python3:
python3 -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())"
python2:
python -c "from distutils.sysconfig import get_python_lib; print get_python_lib()"
2、安装pip
2.1(yum安装):
1、首先安装epel扩展源:
[root@localhost ~]# yum -y install epel-release
如果没有安装epel扩展源而直接安装python-pip时,会出现找到该软件包的错误。
这是因为像centos这类衍生出来的发行版,他们的源有时候内容更新的比较滞后,或者说有时候一些扩展的源根本就没有。
2、安装pip
[root@localhost ~]# yum -y install python-pip
3、更新pip
[root@localhost ~]# pip install --upgrade pip
4、安装后清除cache
[root@localhost ~]# yum clean all
2.2(源码安装):
[root@localhost ~]# wget --no-check-certificate https://github.com/pypa/pip/archive/1.5.5.tar.gz
注意:wget获取https的时候要加上:--no-check-certificate
[root@localhost ~]# tar zvxf 1.5.5.tar.gz #解压文件
[root@localhost pip-1.5.5]# cd pip-1.5.5/
[root@localhost pip-1.5.5]# python setup.py install
2.3(get-pip安装):
[root@localhost ~]# curl https://bootstrap.pypa.io/get-pip.py | python
指定ip端口 启动jupyter notebook
jupyter notebook --no-browser --port 6000 --ip=192.168.1.103
https://blog.csdn.net/hotpotbo/article/details/79130899
for--break--else
for i in range(6):
if i == 5:
print(3)
break
else:
print("did not break loop")
https://segmentfault.com/a/1190000012923757
yum -y groupinstall development
yum -y install zlib-devel
安装Python3.7
Detailed steps to install Python 3.7 in CentOS or any redhat linux machine:
- Download Python from https://www.python.org/ftp/python/3.7.0/Python-3.7.0.tar.xz
- Extract the content in new folder
- Open Terminal in the same directory
- Run below code step by step :
sudo yum -y install gcc gcc-c++ sudo yum -y install zlib zlib-devel sudo yum -y install libffi-devel ./configure make make install