ipython

IPython Notebook: how to display() multiple objects without newline

对着背影说爱祢 提交于 2020-08-01 09:44:00
问题 Currently when I use display() function in the IPython notebook I get newlines inserted between objects: >>> display('first line', 'second line') first line second line But I would like the print() function's behaviour where everything is kept on the same line, e.g.: >>> print("all on", "one line") all on one line Is there a method of changing display behaviour to do this? 回答1: No, display cannot prevent newlines, in part because there are no newlines to prevent. Each displayed object gets

30 个 Python 的最佳实践、小贴士和技巧

可紊 提交于 2020-07-26 23:38:27
作者 | Erik-Jan van Baaren 译者 | 弯月 来源 | CSDN 原文: https://towardsdatascience.com /30-python-best-practices-tips-and-tricks-caefb9f8c5f5 以下为译文: 我想借本文为大家献上 Python 语言的30个最佳实践、小贴士和技巧,希望能对各位勤劳的程序员有所帮助,并希望大家工作顺利! 1、Python 版本 在此想提醒各位:自2020年1月1日起,Python 官方不再支持 Python 2。本文中的很多示例只能在 Python 3 中运行。如果你仍在使用 Python 2.7,请立即升级。 2、检查 Python 的最低版本 你可以在代码中检查 Python 的版本,以确保你的用户没有在不兼容的版本中运行脚本。检查方式如下: if not sys.version_info > (2, 7): # berate your user for running a 10 year # python version elif not sys.version_info >= (3, 5): # Kindly tell your user (s)he needs to upgrade # because you're using 3.5 features 3、IPython

【资料分享】利用Python进行数据分析·第2版 PDF

狂风中的少年 提交于 2020-07-26 07:30:19
《利用Python进行数据分析》(第二版)+中文翻译精要+配套代码和数据 链接: https://pan.baidu.com/s/1kz4DTlefVVkBpewtgomsjw 提取码:l8wi PDF 1.1 本书的内容 本书讲的是利用Python进行数据控制、处理、整理、分析等方面的具体细节和基本要点。我的目标是介绍Python编程和用于数据处理的库和工具环境,掌握这些,可以让你成为一个数据分析专家。虽然本书的标题是“数据分析”,重点却是Python编程、库,以及用于数据分析的工具。这就是数据分析要用到的Python编程。 什么样的数据? 当书中出现“数据”时,究竟指的是什么呢?主要指的是结构化数据(structured data),这个故意含糊其辞的术语代指了所有通用格式的数据,例如: 表格型数据,其中各列可能是不同的类型(字符串、数值、日期等)。比如保存在关系型数据库中或以制表符/逗号为分隔符的文本文件中的那些数据。 多维数组(矩阵)。 通过关键列(对于SQL用户而言,就是主键和外键)相互联系的多个表。 间隔平均或不平均的时间序列。 这绝不是一个完整的列表。大部分数据集都能被转化为更加适合分析和建模的结构化形式,虽然有时这并不是很明显。如果不行的话,也可以将数据集的特征提取为某种结构化形式。例如,一组新闻文章可以被处理为一张词频表,而这张词频表就可以用于情感分析。

Python探索之旅 | 第一部分第三课:初识Python的解释器

柔情痞子 提交于 2020-07-25 09:26:34
作者 谢恩铭,公众号「程序员联盟」(微信号:coderhub)。 转载请注明出处。 原文: https://www.jianshu.com/p/a34eaffcc420 《Python探索之旅》 全系列 内容简介 前言 Python 的解释器 Python 解释器的种类 做一点数学运算 总结 第一部分第三课预告 1. 前言 上一课是 Python探索之旅 | 第一部分第二课:安装Python和Python的常用开发软件 。 经过第一课的理论概念和第二课的 Python 开发环境安装之后,我们是时候来了解一下 Python 的解释器了。 即使这一课的一些小测试看似没什么了不起的,但你却可以借此对 Python 的语法有一个初步概念。我强烈建议你循序渐进地跟着我们动手练习,尤其是如果 Python 是你的第一门编程语言的话。 和任何编程语言一样,Python 具有清晰的语法:你不能随便向 Python 发送任何信息。我们将看到 Python 可以接收什么,不可以接收什么。 2. Python 的解释器 上一课,我们在最后用 PyCharm 创建了一个 Python 的项目,并且创建了我们的第一个 Python 文件( hello_python.py ),然后用项目配置的 Python 解释器(就是我们安装的 Python 中自带的解释器。例如我们上一课在 Windows 中安装的

Download data from a jupyter server

前提是你 提交于 2020-07-20 06:48:06
问题 I'm using ipython notebook by connecting to a server I don't know how to download a thing (data frame, .csv file,... for example) programatically to my local computer. Because I can't specific declare the path like C://user//... It will be downloaded to their machine not mine 回答1: If you are using Jupyter notebook, you can go to the "File" tab on the top left part of the notebook and click "Open". It shows you the content of the current directory. You can select your data file with different

Is there a pure Markdown way to include two images side by side in Jupyter?

我的未来我决定 提交于 2020-07-09 06:24:27
问题 There is a useful Python solution here to put two images side by side in the notebook, but is there a language agnostic way that does the trick using only Jupyter's own markdown? Something like ![](path/to/image1) # insert magic here # ![](path/to/image2) that displays the images side by side? This would be useful in my case cause I would prefer not to break a markdown cell into two and put code in between, but I also would find this helpful in case the notebook is not running Python. I

Automatically convert jupyter notebook to .py

瘦欲@ 提交于 2020-07-08 11:50:15
问题 I know there have been a few questions about this but I have not found anything robust enough. Currently I am using, from terminal, a command that creates .py, then moves them to another folder: jupyter nbconvert --to script '/folder/notebooks/notebook.ipynb' && \ mv ./folder/notebooks/*.py ./folder/python_scripts && \ The workflow then is to code in a notebook, check with git status what changed since last commit, create a potentially huge number of nbconvert commands, then move them all. I

How do I debug a script that uses stdin with ipython?

你离开我真会死。 提交于 2020-07-06 09:50:44
问题 I've got a python script that takes input on stdin. I'd like to drop into IPython.embed(), like this: for filepath in sys.stdin: dir = os.path.basename(filepath) ... IPython.embed() I then invoke the script like this: find . -type f | thescript.py The problem is that IPython uses stdin for the interactive console, so the first thing it sees are the remaining pipe data. Then, the pipe closes and the the terminal exits. Is there a way to debug a script that uses stdin with ipython? 回答1: You

Long running Jupyter notebook/lab?

允我心安 提交于 2020-07-05 08:08:32
问题 I have Jupyter running in a tmux session on an ec2 instance. I have very long-running cells, but when I close my browser or laptop lid, the notebook no longer writes output cells (and may crash the python kernel). This is how I launch labs on my remote instance: jupyter lab --ip=0.0.0.0 --port=5002 --no-browser --allow-root I'm looking for a solution to run a notebook indefinitely without losing data and without having to keep my local computer on. I don't want to use a VNC or X-windows

iPython does not read ~/.inputrc

强颜欢笑 提交于 2020-06-27 10:52:10
问题 I am using iPython. The docs says that I should be able to remap the readline library's keys using inputrc. Here is what I have in my inputrc: set editing-mode emacs set keymap emacs Meta-h: backward-word Meta-s: forward-word Control-h: backward-char Control-s: forward-char Control-n: previous-history Control-t: next-history Control-p: yank Meta-p: yank-pop These mappings simply do not work when I load iPython. I'm on OS X 10.9 Mavericks. I do not see any warnings that libedit is being used