pip

Anaconda Navigator does not update packages

由 假如想象 提交于 2020-12-29 10:44:29
问题 I'm trying to update my environment through Anaconda Navigator. But it fails to update some packages. As you can see, the Apply button is inactive and there is a message saying "Package is already installed" but the package is still in Updatable page. Also, Spyder tells me to update nbconvert at each start. I tried: conda update conda conda update anaconda-navigator conda update navigator-updater conda update --all -y But still these packages are in Updatable list. This is the conda info

Installed Anaconda 4.3.1 (64-bit) which contains Python 3.6 but pip3 missing, cannot install tensorflow

由 亡梦爱人 提交于 2020-12-29 10:44:14
问题 I downloaded the latest stable Anaconda install off the Continuum website which turned out to be Anaconda 4.3.1 (64-bit) and comes with Python 3.6.0. I am in a Windows 10 environment. However pip3 is missing and I cannot install any Python 3.x packages via pip3. What am I doing wrong? 回答1: If you do not have another environment installed python 3+ will default to just pip I believe since pip3 is just an alias for pip. pip install --upgrade pip or You can do it with the associated Python

Installed Anaconda 4.3.1 (64-bit) which contains Python 3.6 but pip3 missing, cannot install tensorflow

由 醉酒当歌 提交于 2020-12-29 10:43:53
问题 I downloaded the latest stable Anaconda install off the Continuum website which turned out to be Anaconda 4.3.1 (64-bit) and comes with Python 3.6.0. I am in a Windows 10 environment. However pip3 is missing and I cannot install any Python 3.x packages via pip3. What am I doing wrong? 回答1: If you do not have another environment installed python 3+ will default to just pip I believe since pip3 is just an alias for pip. pip install --upgrade pip or You can do it with the associated Python

Scrapy爬虫入门

由 霸气de小男生 提交于 2020-12-29 07:54:09
1.安装Scrapy 　　打开Anaconda Prompt，执行：pip install Scrapy执行安装！ 　　注意：要是安装过程中抛出： 　　error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools 　　（或者类似信息）的需要提前安装（根据自己的python版本安装，cp36是指匹配python3.6.x版本，amd64是指64位系统）： 　　 　　下载网站： http://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted 　　完成之后执行安装： 　　 　　安装成功后再执行：pip install Scrapy执行安装即可！ 2.查看scrapy 　　输入：scrapy，表示安装成功！ 　　 3.查看命令 　　输入：help 　　 　　 4.创建Scrapy项目 　　执行命令：scrapy startproject bky 　　 　　这表示创建成功！ 　　执行cd bky, dir命令查看详情： 　　 5.创建spider 　　查看spiders目录 　　 　　创建一个新的spider

Scrapy笔记（1）- 入门篇

由 亡梦爱人 提交于 2020-12-29 07:41:16
Scrapy笔记01- 入门篇 　　Scrapy是一个为了爬取网站数据，提取结构性数据而编写的应用框架。可以应用在包括数据挖掘， 信息处理或存储历史数据等一系列的程序中。其最初是为了页面抓取(更确切来说,网络抓取)所设计的， 也可以应用在获取API所返回的数据(比如Web Services)或者通用的网络爬虫。 　　Scrapy也能帮你实现高阶的爬虫框架，比如爬取时的网站认证、内容的分析处理、重复抓取、分布式爬取等等很复杂的事。 安装scrapy 　　我的测试环境是centos6.5 　　升级python到最新版的2.7，下面的所有步骤都切换到root用户 　　由于scrapy目前只能运行在python2上，所以先更新centos上面的python到最新的 Python 2.7.11 ， 具体方法请google下很多这样的教程。 先安装一些依赖软件 yum install python-devel yum install libffi-devel yum install openssl-devel 然后安装pyopenssl库 pip install pyopenssl 安装xlml yum install python- lxml yum install libxml2 - devel yum install libxslt -devel 安装service-identity

How to `pip install` a package that has Git dependencies?

由 旧城冷巷雨未停 提交于 2020-12-29 02:47:27
问题 I have a private library called some-library (actual names have been changed) with a setup file looking somewhat like this: setup( name='some-library', // Omitted some less important stuff here... install_requires=[ 'some-git-dependency', 'another-git-dependency', ], dependency_links=[ 'git+ssh://git@github.com/my-organization/some-git-dependency.git#egg=some-git-dependency', 'git+ssh://git@github.com/my-organization/another-git-dependency.git#egg=another-git-dependency', ], ) All of these

How to `pip install` a package that has Git dependencies?

由 …衆ロ難τιáo~ 提交于 2020-12-29 02:46:14
问题 I have a private library called some-library (actual names have been changed) with a setup file looking somewhat like this: setup( name='some-library', // Omitted some less important stuff here... install_requires=[ 'some-git-dependency', 'another-git-dependency', ], dependency_links=[ 'git+ssh://git@github.com/my-organization/some-git-dependency.git#egg=some-git-dependency', 'git+ssh://git@github.com/my-organization/another-git-dependency.git#egg=another-git-dependency', ], ) All of these

How to `pip install` a package that has Git dependencies?

由 一世执手 提交于 2020-12-29 02:45:34
问题 I have a private library called some-library (actual names have been changed) with a setup file looking somewhat like this: setup( name='some-library', // Omitted some less important stuff here... install_requires=[ 'some-git-dependency', 'another-git-dependency', ], dependency_links=[ 'git+ssh://git@github.com/my-organization/some-git-dependency.git#egg=some-git-dependency', 'git+ssh://git@github.com/my-organization/another-git-dependency.git#egg=another-git-dependency', ], ) All of these

python+opencv图像处理（一）

由 杀马特。学长 韩版系。学妹 提交于 2020-12-29 01:58:25
一、什么是opencv？　 　　 Open Source Computer Vision Library.OpenCV于1999年由Intel建立，如今由Willow Garage提供支持。OpenCV是一个基于BSD许可（开源）发行的跨平台计算机视觉库，可以运行在Linux、Windows、MacOS操作系统上。它轻量级而且高效——由一系列 C 函数和少量C++类构成，同时提供了Python、Ruby、MATLAB等语言的接口，实现了图像处理和计算机视觉方面的很多通用算法。最新版本是3.1 ，2016年1月29日发布。（引自 百度百科openCV ） 　　简言之，通过openCV可实现计算机图像、视频的编辑。广泛应用于图像识别、运动跟踪、机器视觉等领域。 二、安装 　　直接使用pip安装 pip install numpy Matplotlib #由于opencv依赖numpy pip install opencv-python #或者使用国内镜像 pip install opencv-python -i https://pypi.douban.com/simple 　安装完成之后再命令行解释器输入： import cv2 　若没有提示no module错误，则表示安装成功 测试脚本： import cv2 #导入模块，opencv的python模块叫cv2 imgobj =

Pycharm配置AutoPEP8进行代码规范

由 我的未来我决定 提交于 2020-12-28 23:23:29
autopep8是一个可以将Python代码自动排版为PEP8风格第三方包，使用它可以轻松地排版出格式优美整齐的代码。 配置环境 windows 7 64位专业版（1809） pycharm professional 2020.3 python3.8.7 64位 操作步骤 使用pip下载autopep8： pip install autopep8 将autopep8添加到External Tools， 在Pycharm中点击 File--Settings---Tools--External Tools, 点击图中加号图标添加扩展工具： 上图中，需要填写Name, Program, Arguments, Working directory 以及Output Filters这几项。填写内容如下： Name：可以随意命名，如：AutoPEP8 Program：需要填写autopep8.exe的存放路径，如： D:\ProgramFiles\Python\Python38\Scripts\autopep8.exe Arguments： --in-place --aggressive --aggressive $FilePath$ Woking directory： $ProjectFileDir$ Output Filters输入： $FILE_PATH$\:$LINE$\:$COLUMN
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