PyQt5学习笔记1 - Windows下安装PyQt5

Windows下安装PyQt5

安装Python

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python 基础篇章1-安装

安装PyQt5

概述：pip 安装PyQt5, PyQt5-tools

1. 安装PyQt5
   python官方源下载较慢，因此使用阿里云的国内镜像源。

   C:\Users\admin>pip install PyQt5 -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
   Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
   Collecting PyQt5
   Downloading http://mirrors.aliyun.com/pypi/packages/9e/53/9476464c2a8db5252de96fd8ff39ec5db6ef09b8a08a7152546b7f142d90/PyQt5-5.15.4-cp36.cp37.cp38.cp39-none-win_amd64.whl (6.8 MB)
       |████████████████████████████████| 6.8 MB 3.2 MB/s
   Collecting PyQt5-Qt5>=5.15
   Downloading http://mirrors.aliyun.com/pypi/packages/37/97/5d3b222b924fa2ed4c2488925155cd0b03fd5d09ee1cfcf7c553c11c9f66/PyQt5_Qt5-5.15.2-py3-none-win_amd64.whl (50.1 MB)
       |████████████████████████████████| 50.1 MB 547 kB/s
   Collecting PyQt5-sip<13,>=12.8
   Downloading http://mirrors.aliyun.com/pypi/packages/4b/67/4d4f176ebd76673f0701fbb8a571f1b25d6f8b9b52c3e8905a375d87b925/PyQt5_sip-12.8.1-cp38-cp38-win_amd64.whl (63 kB)
       |████████████████████████████████| 63 kB 686 kB/s
   Installing collected packages: PyQt5-sip, PyQt5-Qt5, PyQt5
   Successfully installed PyQt5-5.15.4 PyQt5-Qt5-5.15.2 PyQt5-sip-12.8.1
   

2. 安装Qt工具

   C:\Users\admin>pip install PyQt5-tools -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
   Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
   Collecting PyQt5-tools
   Downloading http://mirrors.aliyun.com/pypi/packages/da/a3/f791afe43c4bd6e1b2b1f7b4e53a84bc0d12e39a059a47d8d3bf59c8e265/pyqt5_tools-5.15.2.3.0.2-py3-none-any.whl (28 kB)
   Collecting click
   Downloading http://mirrors.aliyun.com/pypi/packages/d2/3d/fa76db83bf75c4f8d338c2fd15c8d33fdd7ad23a9b5e57eb6c5de26b430e/click-7.1.2-py2.py3-none-any.whl (82 kB)
       |████████████████████████████████| 82 kB 364 kB/s
   Collecting pyqt5==5.15.2
   Downloading http://mirrors.aliyun.com/pypi/packages/aa/72/754c693db0e745b9fe47debc3ec52844461f090d5beff28489a0cde5ef82/PyQt5-5.15.2-5.15.2-cp35.cp36.cp37.cp38.cp39-none-win_amd64.whl (56.9 MB)
       |████████████████████████████████| 56.9 MB 2.2 MB/s
   Collecting pyqt5-plugins<5.15.2.3,>=5.15.2.2
   Downloading http://mirrors.aliyun.com/pypi/packages/52/b7/10aeef6008d16ce027759b83776a2c24504bf66cde38b4a96d3f34839137/pyqt5_plugins-5.15.2.2.1.0-cp38-cp38-win_amd64.whl (65 kB)
       |████████████████████████████████| 65 kB 4.5 MB/s
   Collecting python-dotenv
   Downloading http://mirrors.aliyun.com/pypi/packages/86/62/aacbd1489fc6026c9278e9fd5cfdd49c5b1b5375d3c97a624e8f8f999eb2/python_dotenv-0.17.0-py2.py3-none-any.whl (18 kB)
   Requirement already satisfied: PyQt5-sip<13,>=12.8 in d:\study\python380\lib\site-packages (from pyqt5==5.15.2->PyQt5-tools) (12.8.1)
   Collecting qt5-tools<5.15.2.2,>=5.15.2.1
   Downloading http://mirrors.aliyun.com/pypi/packages/4f/9f/627ee838664ad9b01c5db2c4274d3e68f18f78331b6ba61f770cc4435e67/qt5_tools-5.15.2.1.0.1-py3-none-any.whl (12 kB)
   Collecting qt5-applications<5.15.2.3,>=5.15.2.2
   Downloading http://mirrors.aliyun.com/pypi/packages/21/bc/caa266764d44955a0d908f6b1ca349af4b72e93a15a4b5feeba6df2aa980/qt5_applications-5.15.2.2.1-py3-none-win_amd64.whl (61.0 MB)
       |████████████████████████████████| 61.0 MB 3.3 MB/s
   Installing collected packages: qt5-applications, click, qt5-tools, pyqt5, python-dotenv, pyqt5-plugins, PyQt5-tools
   Attempting uninstall: pyqt5
       Found existing installation: PyQt5 5.15.4
       Uninstalling PyQt5-5.15.4:
       Successfully uninstalled PyQt5-5.15.4
   Successfully installed PyQt5-tools-5.15.2.3.0.2 click-7.1.2 pyqt5-5.15.2 pyqt5-plugins-5.15.2.2.1.0 python-dotenv-0.17.0 qt5-applications-5.15.2.2.1 qt5-tools-5.15.2.1.0.1
   

3. 添加环境变量

   • 将designer.exe目录添加到环境变量 (可在cmd中输入path确认)

不同版本designer.exe的所在路径可能不一样。安装过三次，每次都不一样，因此可以在pyqt的几个目录下找一下

designer

4. 测试PyQt5环境是否安装成功

   import sys
   from PyQt5 import QtWidgets, QtCore
   
   app = QtWidgets.QApplication(sys.argv)
   widget = QtWidgets.QWidget()
   widget.resize(360, 360)
   widget.setWindowTitle('Hello, PyQt5')
   widget.show()
   sys.exit(app.exec_())
   

   执行脚本之后弹出一个窗口(Widget)界面,则说明PyQt5环境安装成功。

5. PyQt5的依赖模块

   • 在cmd中进入Python交互窗口然后输入语句import PyQt5和help(PyQt5).
   • 其中的PACKAGE CONTENTS就是其依赖模块。

   C:\Users\admin>python
   Python 3.8.0 (tags/v3.8.0:fa919fd, Oct 14 2019, 19:37:50) [MSC v.1916 64 bit (AMD64)] on win32
   Type "help", "copyright", "credits" or "license" for more information.
   >>> import PyQt5
   >>> help(PyQt5)
   Help on package PyQt5:
   
   NAME
       PyQt5
   
   DESCRIPTION
       # Copyright (c) 2020 Riverbank Computing Limited 
       #
       # This file is part of PyQt5.
       #
       # This file may be used under the terms of the GNU General Public License
       # version 3.0 as published by the Free Software Foundation and appearing in
       # the file LICENSE included in the packaging of this file.  Please review the
       # following information to ensure the GNU General Public License version 3.0
       # requirements will be met: http://www.gnu.org/copyleft/gpl.html.
       #
       # If you do not wish to use this file under the terms of the GPL version 3.0
       # then you may purchase a commercial license.  For more information contact
       # [email protected].
       #
       # This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
       # WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
   
   PACKAGE CONTENTS
       QAxContainer
       Qt
       QtBluetooth
       QtCore
       QtDBus
       QtDesigner
       QtGui
       QtHelp
       QtLocation
       QtMultimedia
       QtMultimediaWidgets
       QtNetwork
       QtNetworkAuth
       QtNfc
       QtOpenGL
       QtPositioning
       QtPrintSupport
       QtQml
       QtQuick
       QtQuick3D
       QtQuickWidgets
       QtRemoteObjects
       QtSensors
       QtSerialPort
       QtSql
       QtSvg
       QtTest
       QtTextToSpeech
       QtWebChannel
       QtWebSockets
       QtWidgets
       QtWinExtras
       QtXml
       QtXmlPatterns
       _QOpenGLFunctions_2_0
       _QOpenGLFunctions_2_1
       _QOpenGLFunctions_4_1_Core
       pylupdate
       pylupdate_main
       pyrcc
       pyrcc_main
       sip
       uic (package)
   
   FILE
       d:\study\python380\lib\site-packages\pyqt5\__init__.py
   

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