ipython

Python学习——ipython的使用

安稳与你 提交于 2020-02-10 23:05:04
? Ipython的概述和简介 help(name) 查询指定名称的帮助 obj? 列出obj对象的详细信息 obj?? 列出更加详细的信息 _ 表示前一次输出 一个下划线 __ 表示倒数第二次输出 两个下划线 ___ 表示倒数第三次输出 三个 ipython专有的,注意 _dh 目录历史 _oh 输出历史 shell命令 !command 执行shell命令 !ls -l !touch test.txt files = !ls -l | grep py 来源: CSDN 作者: 智智Garrick 链接: https://blog.csdn.net/qq_44537267/article/details/104255200

【数据挖掘重要笔记day03】jupyter的基本使用+创建文件+ctrl+enter和shift+enter和alt+enter等【jupyter快捷键大全】+魔法命令+jupyter下载东西

删除回忆录丶 提交于 2020-02-10 15:04:32
文章目录 一、启动程序 执行以下命令: 注意以下几点: 几个基本操作: 创建文件 停止的方法 标题和注释 重命名 ctrl+enter和shift+enter和alt+enter 二、IPython的帮助文档 1. 使用help() 2. 使用? a 向上生成新的行 b 向下生成新的行 删除行dd 不可以自动保存 3. tab自动补全 三、IPython魔法命令 1. 运行外部Python文件 2.运行计时 3. 查看当前会话中的所有变量与函数 4.列出魔法命令 4. 执行Linux指令 5. 更多魔法命令 6.下载东西pip可以吗 一、启动程序 执行以下命令: jupyter notebook [NotebookApp] Serving notebooks from local directory: /home/nanfengpo [NotebookApp] 0 active kernels [NotebookApp] The IPython Notebook is running at: http://localhost:8888/ [NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). 注意以下几点:

jupyter server

為{幸葍}努か 提交于 2020-02-09 22:54:43
[TOC] 首先确认是否安装有python2和3 使用 $ which python2 , $ which python3 查看,一般会返回 /usr/bin/python2 , /usr/bin/python3 ,如果没有,那么就用 $ sudo apt-get install python2 来安装 安装pip,ipython,jupyter sudo apt-get install python-pip 安装python2版本的pip sudo -H pip install --upgrade pip 更新pip sudo apt-get install ipython 安装ipython sudo apt-get install ipython-notebook 安装ipython sudo -H pip install jupyter 使用pip安装jupyter 此时所有需要的包都安装完成了,如果是在本地使用jupyter,那么直接输入 $ jupyter notebook ,然后在浏览器中输入 localhost:8080 就可以正常使用了 配置jupyter server $ jupyter notebook --generate-config 首先生成jupyter的配置文件,文件名为 jupyter_notebook_config.py ,存储于 ~/

前言

大憨熊 提交于 2020-02-05 08:44:19
文章目录 行话 数据 数据分析任务类别 导入约定 示例数据 IPython的一些优势 行话 数据规整(Munge/Munging/Wrangling) 指的是将非结构化和(或)散乱数据处理为结构化或整洁形式的整个过程。 伪码(Pseudocode) 算法或过程的“代码式”描述,而这些代码本身并不是实际有效的源代码。 语法糖(Syntactic sugar) 这是一种编程语法,它并不会带来新的特性,但却能使代码更易读、更易写。 数据 表格型数据 多维数组 由键位列关联的多张表数据 均匀或非均匀的时间序列 数据分析任务类别 与外界进行交互 读写各种各样的文件格式和数据库。 准备 对数据进行清理、修整、整合、规范化、重塑、切片切块、变形等处理以便进行分析。 转换 对数据集做一些数学或统计运算以产生新的数据集。比如说根据分组变量对一个大表进行聚合。 建模和计算 将数据跟统计模型、机器学习算法、或其他计算工具联系起来。 展示 创建交互式的或静态的图片或文字摘要。 导入约定 import numpy as np import matplotlib . pyplot as plt import pandas as pd import seaborn as sns import statsmodels as sm 示例数据   每章的示例数据托管在GitHub仓库,链接为: http:/

Ipython customize prompt to display cell run time

爷,独闯天下 提交于 2020-02-04 05:54:52
问题 i am wondering how to configure Ipython so that it adds the run time of the last command in milliseconds/seconds to the right command prompt. This could be done in ZSH/Bash shells as illustrated here https://coderwall.com/p/kmchbw How should I go about doing this? 回答1: This is a code snippet that times each statement and prints it right adjusted before the next prompt, and also makes the value accessible by name 'texc'. # Assumes from __future__ import print_function from time import time

linux下使用IPython编程工具

不打扰是莪最后的温柔 提交于 2020-02-03 21:58:24
1、安装IPython工具 IPython是一个第三方工具,使用以下命令进行安装: [root@python ~]# pip install ipython #安装ipython [root@python ~]# ipython #执行ipython进入IPython交互式界面 Python 3.8.1 (default, Feb 3 2020, 18:39:50) Type 'copyright', 'credits' or 'license' for more information IPython 7.12.0 -- An enhanced Interactive Python. Type '?' for help. In [1]: sum=0 In [2]: for i in range(10): ...: sum+=i ...: print(sum) 45 In [3]: import os In [4]: os.getlogin() Out[4]: 'root' Ipython具有以下特性: 支持语法高亮; 自动缩进; Tab补全; 快速获取帮助信息; 搜索历史; 执行shell命令; 2、magic函数 IPython提供了很多功能强大的函数,所有IPython提供的函数都以“%”开头。以“%”开头的这类功能强大的函数,在IPython中称为magic函数

graceful interrupt of while loop in ipython notebook

寵の児 提交于 2020-01-31 18:14:37
问题 I'm running some data analysis in ipython notebook. A separate machine collects some data and saves them to a server folder, and my notebook scans this server periodically for new files, and analyzes them. I do this in a while loop that checks every second for new files. Currently I have set it up to terminate when some number of new files are analyzed. However, I want to instead terminate upon a keypress. I have tried try-catching a keyboard interrupt, as suggested here: How to kill a while

graceful interrupt of while loop in ipython notebook

自古美人都是妖i 提交于 2020-01-31 18:14:29
问题 I'm running some data analysis in ipython notebook. A separate machine collects some data and saves them to a server folder, and my notebook scans this server periodically for new files, and analyzes them. I do this in a while loop that checks every second for new files. Currently I have set it up to terminate when some number of new files are analyzed. However, I want to instead terminate upon a keypress. I have tried try-catching a keyboard interrupt, as suggested here: How to kill a while

Python: delete all variables except one for loops without contaminations

感情迁移 提交于 2020-01-30 11:43:40
问题 %reset %reset -f and %reset_selective a %reset_selective -f a are usefull Python alternative to the Matlab command "clear all", in which "-f" means "force without asking for confirmation" and "_selective" could be used in conjunction with who_ls to selectively delete variables in workspace as clearly shown here https://ipython.org/ipython-doc/3/interactive/magics.html . Now I am managing loops in which I am going to define a large number of variables, for example for j in range(1000): a =

windows7 64位系统下无法运行ipython

烂漫一生 提交于 2020-01-29 11:40:06
windows7 64位系统下无法运行ipython | Creator 导航 导航 博客 分类 标签 友链 关于 大专栏 windows7 64位系统下无法运行ipython tent-post LEFT"> 试了很多方法,最后发现需要用源码包安装 附上方法 http://www.cnblogs.com/helloLinux/archive/2011/09/27/2193457.html 关闭 来源: https://www.cnblogs.com/lijianming180/p/12239831.html