python plotting libraries

NumPy is a Python library for scientific computing and is often used in fields such as data mining or machine learning or scientific statistics .In the actual business, in order to play NumPy's high performance, when compiling numpy, it relies on some specially optimized third-party scientific computing libraries. For first-time newcomers to numpy, it is often not a simple task to install a numpy that relie

Recently, as more and more data scientists began to use Python, I could not help but think that although they benefited from the libraries of Pandas, Scikit-learn and NumPy, they might have missed some of the older but also helpful python libraries. In this blog post, I will recommend to you some little-known

Currently, there are thousands of Python packages on the web, but few people can know them all. There are more than 47,000 package listings on PyPI alone. Now, more and more data scientists are starting to use Python, and although they get a lot of benefit from pandas,scikit-learn,numpy, I still want to introduce them to some older and very useful Python

Source: http://www.cnblogs.com/yd1227/archive/2010/11/15/1877467.htmlSorting is not prioritized.1.os and OS Related2.time is time-related3.pcap Grab Bag4.DPKT Unpacking and Packaging5.pymssql operation of MSSQL database6.cProfile self-debug script performance, can accurately and quickly calculate run time7.urllib2 one of the first contact libraries, related to HTTP8.httplib related to HTTP9.smtplib of Lib for SMTPLib of 10.poplib POP311.tarfile Soluti

is in the CMD environment:Request LibraryPip Install request EnterPandas LibraryIn the same way, Pip install Pandas, here need to declare, this is not necessarily successful, just a little bit to see the beginning of the problem is not very clear, here if not, try this: Pip install Pandas-i/http Pypi.douban.com/simple, I am also this step is OK.There are other libraries that are roughly the same, and are now exposed to these things.Just getting starte

Found unsolved import when writing a crawler programA moment puzzled, think is the IDE problem, actually is not installed third-party library caused.So go to https://pypi.python.org/pypi/requests/ . Download third-party librariesDownload the. gz file, which is a compressed file and unzip it after downloading.Under this folder, hold down SHIFT and right-click to select the Command window to open hereThen paste the input python setup.py install in the c

Standard library:Import OSOS.GETCWD ()//return current working pathOs.chdir ('/server/accesslogs ') # Change current working directoryThe Dir () function is one of the most common and useful functions of python. It returns a list of all property names that contain the object to queryImport ShutilShutil.copyfile (' data.db ', ' archive.db ')//Copy filesShutil.move ('/build/executables ', ' installdir ')//delete filesGlob File path Lookup:Glob.globRetur

Canopy:downloads-enthought Scientific Computing SolutionsOne-click installation of Python data analysis development platform, pre-set core scientific analysis library such as: SciPy, NumPy,. Pandas, Matplotlib, Ipython and so on. This software has a free version and several different paid editions, the personal feel that the free version enough to use, the main concern is his integrated library, do not need to install their own one.Plus a few of their

First, the visualization method Bar chart Pie chart Box-line Diagram (box chart) Bubble chart Histogram Kernel density estimation (KDE) diagram Line Surface Chart Network Diagram Scatter chart Tree Chart Violin chart Square Chart Three-dimensional diagram Second, interactive tools Ipython, Ipython Notebook plotly Iii. Python IDE Type Pycharm, specifying a Java swi

This time, I have a venv environment for other purposes, but some Python libraries need to be compiled by gcc ... Can not download directly, and this environment can not be networked.I'll copy every library that needs to be compiled. Silly. Directly specify the library directory for the virtual venv how nice.create a. pth fileThis is My.pth's file.where is this file? Ubuntu and CentOS are different. CentOS

Reply content: Awesome-python This awesome series basically includes the Python killer app. The word killer is too violent to be able to mention different killers depending on your needs. fuckit.py https:// Github.com/ajalt/fuckit py Scapy Rank in no particular order:Django/flask Rapid Construction StationScrapy support for distributed crawling with Redis works wondersNumpy/scipy a variety of cool calc

In the process of Python development, often encounter a variety of small problems, such as debugging a good program on a computer, migrating to another machine will often be the project relies on the lack of library to cause errors.Is there a better way to solve the dependency library package in Python development than to re-install various dependent libraries ov

This article mainly introduces how to use Python and OpenCV libraries to convert URLs into OpenCV formats. at the same time, NumPy and urllib are used. For more information, see Today's blog is directly from my own tool library. In the past few months, some PyImageSearch readers emailed me: "How to get the image pointed to by the URL and convert it to OpenCV format (you do not need to write it to the dis

#[email protected] coding:utf-8 [email protected]--Python common modules and libraries introduction of the first part: Introduction to the JSON moduleImportJSON converts a Python data structure to json:dict_= {1:2, 3:4," -":" the"} #Test Json.dumps Printtype (dict_), dict_ json_str=json.dumps (dict_)Print "Json.dumps (dict) return:" Printtype (JSON_STR), Json_

Numpy and Scikit-learn are common third-party libraries for Python. The NumPy library can be used to store and handle large matrices, and to some extent make up for Python's lack of computational efficiency, precisely because the presence of numpy makes Python a great tool in the field of numerical computing; Sklearn is the famous machine learning library in

Three methods for installing third-party libraries in Python This article mainly introduces the Python decorator mode and Specific Aspect-oriented programming. In summary, the function of the decorator is to add additional functions for existing objects, this article details all aspects of the decorative device model, and then introduces the knowledge of cross-se

First, IntroductionRequests is a Python HTTP client library, similar to URLLIB,URLLIB2, but the advantage of requests is that the use of simple, same functionality, with requests implementation of the code is much less. After all, the official documents are very straightforward to say:Python's standard library URLLIB2 provides most of the HTTP functionality needed, but the API is too counter-trivial, and a simple function requires a lot of code.Theref