- 方法1，使用Python merge 在使用Excel时，我用的最多函数就是vlookup；在使用SQL查询的时候，我用的最多应该是join；这两个都有相同的功能，将多表匹配、合并，然后达到对比、查漏等等效果。在pandas里面也有类似的功能函数就是pd.merge()。merge的用法跟SQL中join很像。
https://zhuanlan.zhihu.com/p/30113030
- 方法2，使用{}返回匹配的整行.
Jack Honghe
Honghe
/ gist:bbd7936489548dc87336f84f70841767
Created
December 27, 2021 03:01
https://github.com/ohmybash/ font theme with conda venv prompt.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| diff --git a/themes/font/font.theme.sh b/themes/font/font.theme.sh | |
| index c691e57..5a9dcc3 100644 | |
| --- a/themes/font/font.theme.sh | |
| +++ b/themes/font/font.theme.sh | |
| @@ -37,12 +37,23 @@ THEME_CLOCK_FORMAT=${THEME_CLOCK_FORMAT:-"%I:%M:%S"} | |
| VIRTUALENV_THEME_PROMPT_PREFIX='(' | |
| VIRTUALENV_THEME_PROMPT_SUFFIX=') ' | |
| +function _python_venv_prompt { |
Honghe
/ taichi_zoo_N_body.py
Created
October 23, 2021 17:13
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import taichi as ti | |
| ti.init(ti.gpu) | |
| # global control | |
| paused = ti.field(ti.i32, ()) | |
| # gravitational constant 6.67408e-11, using 1 for simplicity | |
| G = 1 | |
| PI = 3.141592653 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # -*- coding: utf-8 -*- | |
| import logging | |
| import os | |
| import mysql.connector | |
| import pandas as pd | |
| logging.basicConfig(level=logging.DEBUG) | |
Honghe
/ simple-https-server.py
Created
October 16, 2018 11:34
— forked from dergachev/simple-https-server.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/ | |
| # generate server.xml with the following command: | |
| # openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes | |
| # run as follows: | |
| # python simple-https-server.py | |
| # then in your browser, visit: | |
| # https://localhost:4443 | |
| import BaseHTTPServer, SimpleHTTPServer | |
| import ssl |
Honghe
/ gist:12a1d6ffc5cc580646aeef55cb306ded
Created
October 16, 2018 11:01
Python wav sound convert
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| with open("audioData_original.wav", 'wb') as of: | |
| of.write(message['audio']) | |
| audioFile = wave.open("audioData_original.wav", 'r') | |
| n_frames = audioFile.getnframes() | |
| audioData = audioFile.readframes(n_frames) | |
| originalRate = audioFile.getframerate() | |
| af = wave.open('audioData.wav', 'w') | |
| af.setnchannels(1) | |
| af.setparams((1, 2, 16000, 0, 'NONE', 'Uncompressed')) | |
| converted = audioop.ratecv(audioData, 2, 1, originalRate, 16000, None) |
Honghe
/ matplotlib Border Removal.ipynb
Created
July 25, 2018 07:13
— forked from kylemcdonald/matplotlib Border Removal.ipynb
How to (mostly) remove all borders and padding with matplotlib.
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Honghe
/ app.py
Created
June 22, 2018 07:57
— forked from rduplain/app.py
Add a second static directory to Flask, in ../static/.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| from flask import Flask, send_from_directory | |
| app = Flask(__name__) | |
| @app.route('/base/<path:filename>') | |
| def base_static(filename): | |
| return send_from_directory(app.root_path + '/../static/', filename) |
Honghe
/ gist:45e01ef6083268d1f43dad24b74ddab0
Last active
June 8, 2018 15:16
Install Vim 8 with Python, Python 3, Ruby and Lua support on Ubuntu 16.04
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| sudo apt-get remove --purge vim vim-runtime vim-gnome vim-tiny vim-gui-common | |
| sudo apt-get install liblua5.1-dev luajit libluajit-5.1 python-dev ruby-dev libperl-dev libncurses5-dev libatk1.0-dev libx11-dev libxpm-dev libxt-dev | |
| #Optional: so vim can be uninstalled again via `dpkg -r vim` | |
| sudo apt-get install checkinstall | |
| # use `which vim` to locate the vim directory first | |
| sudo rm -rf /usr/local/share/vim /usr/bin/vim /usr/local/bin/vim |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| set nocompatible " be iMproved, required | |
| filetype off " required | |
| " set the runtime path to include Vundle and initialize | |
| set rtp+=~/.vim/bundle/Vundle.vim | |
| set runtimepath^=~/.vim/bundle/ctrlp.vim | |
| " TUI 颜色设置 | |
| " set termguicolors | |
| " TUI 颜色设置，不然 vim-airline等着色不对 | |
| "set t_Co=256 |
NewerOlder