pip

Python3.7: error while loading shared libraries: libpython3.7m.so.1.0

由 自闭症网瘾萝莉.ら 提交于 2020-12-28 18:28:26
问题 I have two versions Python-2.7 , Python-3.5 which I was able to access with python(pip) and python3(pip3) command respectively. Then I have installed an another version of python (i.e 3.7.5) . I have used these commands to install it. sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \ libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \ xz-utils tk-dev libffi-dev liblzma-dev wget https://www.python.org/ftp/python/3.7.5/Python-3.7.5.tgz

SQLAlchemy 介绍，建表，及表的操作 (增 删 改 查)

由 怎甘沉沦 提交于 2020-12-27 08:58:38
首先，再了解SQLAachemy之前，我们先回顾一下ORM 一、 ORM的回顾 1. 什么是ORM 　　ORM是对象-关系映射（Object Relation Mapping，简称ORM） 　　对象-关系映射(ORM)系统一般以中间件的形式存在，主要实现程序对象到关系数据库的映射。 　　简单的来说 Object Relation Mapping (ORM)，就是通过对象(Object) 去操纵数据表(Mapping)的过程 2. ORM 方法论，基于三个核心原则 简单性： 以最基本的形式建模数据 传达性：数据库结构被任何人都能理解的语言文档化。 精确性：基于数据模型创建正确标准化的结构 3. 一般的ORM包括以下四部分： 一个对持久类对象进行CRUD操作的API；（CRUD表示：增删改查） 一个语言或API用来规定与类和类属性相关的查询； 一个规定mapping metadata的工具； 一种技术可以让ORM的实现同事务对象一起进行dirty checking, lazy association fetching以及其他的优化操作。 　 ORM：及Object-Relational Mapping，把关系数据库的表结构映射到对象上 二、SQLAlchemy介绍 　　Python 中最有名的ORM架构就是SQLAlchemy, 　　很多人认为SQLAlchemy 没有 Django

Unable to load QMYSQL Driver on PySide2

由 柔情痞子 提交于 2020-12-27 06:09:34
问题 How can i install and load the Qmysql driver using Pyside2 (pip) with python3.8? I've already tried to download git:qtbase and compiled the driver from there but I had any luck. 回答1: This answer covers not only the installation for Linux but for the other OS, besides that it also applies for pyqt5 The binaries used by Qt are the same ones used by PyQt5/PySide2 since they use the same base code so you will have to compile the plugins. In this case, to compile the mysql plugin you must follow

Unable to load QMYSQL Driver on PySide2

由 天涯浪子 提交于 2020-12-27 06:07:01
问题 How can i install and load the Qmysql driver using Pyside2 (pip) with python3.8? I've already tried to download git:qtbase and compiled the driver from there but I had any luck. 回答1: This answer covers not only the installation for Linux but for the other OS, besides that it also applies for pyqt5 The binaries used by Qt are the same ones used by PyQt5/PySide2 since they use the same base code so you will have to compile the plugins. In this case, to compile the mysql plugin you must follow

Unable to load QMYSQL Driver on PySide2

由 六眼飞鱼酱① 提交于 2020-12-27 06:06:16
问题 How can i install and load the Qmysql driver using Pyside2 (pip) with python3.8? I've already tried to download git:qtbase and compiled the driver from there but I had any luck. 回答1: This answer covers not only the installation for Linux but for the other OS, besides that it also applies for pyqt5 The binaries used by Qt are the same ones used by PyQt5/PySide2 since they use the same base code so you will have to compile the plugins. In this case, to compile the mysql plugin you must follow

Problem installing numpy for PyPy3 on Windows 10

由 走远了吗. 提交于 2020-12-27 05:25:11
问题 I am having issues trying to install numpy for pypy3 on my Windows 10 machine. As I am unable to tell if this problem stems from my pypy3 installation or from something else I am describing here all the steps that I have followed so far: As indicated on the official download page I have: downloaded and installed the "Visual C++ Redistributable Package" vcredist.x86.exe downloaded and installed the Pypy3 "Windows binary (32 bits)" file pypy3.6-v7.3.1-win32.zip Then after having manually added

Problem installing numpy for PyPy3 on Windows 10

由 故事扮演 提交于 2020-12-27 05:23:17
问题 I am having issues trying to install numpy for pypy3 on my Windows 10 machine. As I am unable to tell if this problem stems from my pypy3 installation or from something else I am describing here all the steps that I have followed so far: As indicated on the official download page I have: downloaded and installed the "Visual C++ Redistributable Package" vcredist.x86.exe downloaded and installed the Pypy3 "Windows binary (32 bits)" file pypy3.6-v7.3.1-win32.zip Then after having manually added

Problem installing numpy for PyPy3 on Windows 10

由 二次信任 提交于 2020-12-27 05:23:09
问题 I am having issues trying to install numpy for pypy3 on my Windows 10 machine. As I am unable to tell if this problem stems from my pypy3 installation or from something else I am describing here all the steps that I have followed so far: As indicated on the official download page I have: downloaded and installed the "Visual C++ Redistributable Package" vcredist.x86.exe downloaded and installed the Pypy3 "Windows binary (32 bits)" file pypy3.6-v7.3.1-win32.zip Then after having manually added

Why is 'pip3 install netifaces' failing on Debian 10 Buster?

由 Deadly 提交于 2020-12-26 11:21:24
问题 I setup a new Debian 10 (Buster) instance on AWS EC2, and was able to install a pip3 package that depended on netifaces, but when I came back to it the next day the package is breaking reporting an error in netifaces. If I try to run pip3 install netifaces I get the same error: ~$ pip3 install netifaces Collecting netifaces Using cached https://files.pythonhosted.org/packages/0d/18/fd6e9c71a35b67a73160ec80a49da63d1eed2d2055054cc2995714949132/netifaces-0.10.9.tar.gz Complete output from

fatal error C1083: Cannot open include file: 'basetsd.h'

由 你。 提交于 2020-12-26 09:25:17
问题 So i have been trying to install Scrapy for Python for the last couple of days. Trying anything i could think off and read everything i have come across with similar problems, but haven't been able to find a solution. So here is the code. Thank you. building 'twisted.test.raiser' extension creating build\temp.win32-3.6 creating build\temp.win32-3.6\Release creating build\temp.win32-3.6\Release\src creating build\temp.win32-3.6\Release\src\twisted creating build\temp.win32-3.6\Release\src
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