jpuyy的网志

Category: Python

  • pip 源

    douban

    pip install requests -i https://pypi.douban.com/simple

    aliyun

    pip install requests -i https://mirrors.aliyun.com/pypi/simple

    私有 nexus 源

    pip install requests -i https://nexus.example.com/nexus/repository/pip-internal/simple

  • brew 切换 python 版本

    切换 python 至 3.6.5

    brew list python --versions
brew switch python 3.6.5

    升级 python3

    brew install python3

    link 切换

    ➜  ✗ brew link python
Linking /usr/local/Cellar/python/3.7.7... 
Error: Could not symlink Frameworks/Python.framework/Headers
Target /usr/local/Frameworks/Python.framework/Headers
is a symlink belonging to python@2. You can unlink it:
  brew unlink python@2
解除 python@2 link
Unlinking /usr/local/Cellar/python@2/2.7.17... 34 symlinks removed


To force the link and overwrite all conflicting files:
  brew link --overwrite python

To list all files that would be deleted:
  brew link --overwrite --dry-run python
➜  ✗ brew link python --overwrite python
Linking /usr/local/Cellar/python/3.7.7... 28 symlinks created

  • python date相减

    python 计算时间相差天数

    from datetime import date

d0 = date(2008, 8, 18)
d1 = date(2008, 9, 26)
delta = d0 - d1
print delta.days

  • python smtplib 发邮件

    http://www.mkyong.com/python/how-do-send-email-in-python-via-smtplib/

  • centos7 python 升级

    脚本

    #!/bin/bash

yum install -y gcc make
cd /usr/src
curl -O https://www.python.org/ftp/python/2.7.12/Python-2.7.12.tgz
tar xzf Python-2.7.12.tgz
cd Python-2.7.12
./configure
make altinstall

    CentOS 7 安装 python 3.6.5

    sudo yum install -y https://centos7.iuscommunity.org/ius-release.rpm
sudo yum install -y python36u python36u-libs python36u-devel python36u-pip

    CentOS 7.7, Python 3 is available in the base package repository

    # cat /etc/redhat-release 
CentOS Linux release 7.7.1908 (Core)
# yum install -y python3 python3-devel

  • python读取ini

    http://wklken.me/posts/2012/02/19/python-ini-configparser.html