Windows 10 怎样安装 PyQt5？

安装windows 10系统的步骤：

1、首先，制作一个【u启动u盘启动盘】，根据开机画面的提示，重启电脑按开机按开机快捷键设置u盘启动，然后进入u启动主菜单界面，选择运行win8pe并按回车键进入；

2、然后在u启动pe装机工具中，我们在下拉菜单中选择win10系统镜像文件，选择c盘作为系统盘把win10镜像安装在c盘中，点击确定；

3、这是系统会d出程序将执行还原 *** 作的提示框，点击确定；

4、接着就是系统还原的过程了，还原成功之后系统会重启计算机，然后进行程序安装；

5、win10系统安装完成之后就可以进行系统的相关设置了，设置完成之后win10就可以正常使用了

安装PtQt4前你需准备： 

Xcode （10.6.1 自带Xcode）

Qt

SIP

PyQt4

创建了一个pyqt文件夹在硬盘根目录下，并将sip-4.12.1.tar.gz和PyQt-mac-gpl-snapshot-4.8.4.tar.gz放到其中并解压。

1、先安装qt，默认安装，这一步大部分人不会有问题，跳过。

2、接下来，打开终端(Terminal，在 Applications(应用程序)/Utilities(实用工具)/ 下)，在终端输入：export VERSIONER_PYTHON_PREFER_32_BIT=yes。

3、使用"cd 路径"命令将当前目录设为sip-4.12.1，如：  cd /pyqt/sip-4.12.1/， 然后进行配置(configure)【Re-build SIP in 32bit 】在终端中执行

python configure.py --arch i386

配置(configure)完成后就开始编译，在终端中执行引用make clean(清除以前的安装信息)make

编译完成后就安装，在终端中执行引用sudo make install

在这个过程中没出现错误就是安装成功了 

编译安装PyQt4，过程和上面的一样。 【Build PyQt4 in 32bit 】

在终端中使用"cd 路径"命令将当前目录设为PyQt-mac-gpl-snapshot-4.8.4，如

引用cd /Users/schi/pyqt/PyQt-mac-gpl-snapshot-4.8.4

然后进行配置(configure)，在终端中执行引用python configure.py --use-arch i386

配置时会遇到引用Determining the layout of your Qt installation... 

This is the GPL version of PyQt 4.6 (licensed under the GNU General Public 

License) for Python 2.6.2 on darwin. 

Type '2' to view the GPL v2 license. 

Type '3' to view the GPL v3 license. 

Type 'yes' to accept the terms of the license. 

Type 'no' to decline the terms of the license. 

Do you accept the terms of the license? 

输入yes，再按回车就行 

配置(configure)完成后就开始编译，在终端中执行

引用make cleanmake

编译比较花时间，请耐心等待。

编译完成后就安装，在终端中执行

引用sudo make install

在这个过程中没出现错误就是安装成功了  

也可以在IDLE中导入PyQt4的模块，能成功导入就说明安装成功

Python代码

from PyQt4 import QtCore, QtGui

下面分析一下安装过程中可能遇到的问题：

1.问题如下

##############

ld: warning: in /Library/Frameworks/Python.framework/Python, missing required architecture x86_64 in file

Undefined symbols:

  "_Py_Initialize", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyLong_AsVoidPtr", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyErr_Print", referenced from:

      PyCustomWidgets::getModuleAttr(char const*, char const*)in pluginloader.o

      PyCustomWidgets::getModuleAttr(char const*, char const*)in pluginloader.o

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyString_FromString", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyType_IsSubtype", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyModule_GetDict", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyObject_CallObject", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyObject_CallFunctionObjArgs", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyList_Append", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_Py_IsInitialized", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyDict_Next", referenced from:

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyImport_ImportModule", referenced from:

      PyCustomWidgets::getModuleAttr(char const*, char const*)in pluginloader.o

      PyCustomWidgets::PyCustomWidgets(QObject*)in pluginloader.o

  "_PyObject_GetAttrString", referenced from:

      PyCustomWidgets::getModuleAttr(char const*, char const*)in pluginloader.o

ld: symbol(s) not found

collect2: ld returned 1 exit status

make[1]: *** [libpythonplugin.dylib] Error 1

make: *** [all] Error 2

这个问题的原因就是：qt是在32位mac上编译的，但pyqt默认是在64位机子上编译的，所以我们在编译的时候要制定编译环境：是i386 还是x86_64.

请参考如下的信息：

The problem is that the Qt library is 32bit while, by default, python builds PyQt4 in 64bit. That caused problem when it tried to link 64bit object files with 32bit Qt library. To fix this issue, we need to force python to build PyQt4 in 32bit, and we also need to re-build SIP in 32bit mode. If you use the python version that comes with Mac OS (2.5 for Snow Leopard), make sure that it runs in 32bit mode by issuing the command

2.个问题如下：

>>>from PyQt4 import QtGui

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

ImportError: dlopen(/Library/Python/2.6/site-packages/PyQt4/QtGui.so, 2): Symbol not found: __ZN13QPyTextObject16staticMetaObjectE

Referenced from: /Library/Python/2.6/site-packages/PyQt4/QtGui.so

Expected in: flat namespace

in /Library/Python/2.6/site-packages/PyQt4/QtGui.so

这个问题是所有的包安装都没有问题但是当导入QtGui或其他包时，总报这个问题，这个问题的原因是，当前pyqt release的包本身带的一个bug，PyQt-mac-gpl-snapshot-4.8.3， 所以你下载下个要release的包就可以了。如我下的是：PyQt-mac-gpl-snapshot-4.8.4。

下面给大家介绍一下我写的自动安装这些程序的python源码：

#!/usr/bin/env python

"""

Automated installer for Python 2.6 (final)

This installer is able to handle any previous

versions of Python.

NOTE: This file *must* be copied to

//nssgsvr/tools/pyInstall_OSX when modified!

"""

import os

import sys

import re

import shutil

import platform

import tarfile

# Constants

PYTHON_PKGS = {"dmgFile" : "python-2.6.1-macosx2008-12-06.dmg",

               "mpkgList": ["MacPython.mpkg"] }

#WXPYTHON_PKGS = {"dmgFile" : "wxPython2.8-osx-unicode-2.8.9.2-universal-py2.6.dmg",

#               "mpkgList":  ["wxPython2.8-osx-unicode-universal-py2.6.pkg"] }

#ANGELIA

XCODE_PKGS = {"dmgFile" : None,  "mpkgList":  ["Xcode.mpkg"]}

QT_PKGS = {"dmgFile" : "qt-mac-cocoa-opensource-4.6.2.dmg",

             "mpkgList":  ["Qt.mpkg"] }

THIRD_PARTY_INSTALL = ["sip-4.12.1", "PyQt-mac-gpl-snapshot-4.8.4","Pyro-3.9.1", "pyserial-2.4"]

# Environment constants

TCSH_ENV_FILE = '/etc/csh.login'

BASH_ENV_FILE = '/etc/profile'

SCRIPTS_ROOT_ENV = "TEST_SCRIPTS_ROOT"

TARGET_VER = "2.6"

IS_POSIX = (os.name == 'posix')

IS_MAC = (sys.version.find('Apple') != -1)

IS_OSX = (IS_MAC and IS_POSIX)

IS_OSX_LEOPARD = (IS_OSX and platform.mac_ver()[0].startswith('10.5'))

IS_OSX_SNOWLEOPARD = (IS_OSX and platform.mac_ver()[0].startswith('10.6'))

# NSSGSVR Constants

MOUNT_POINT = "/Volumes/Test"

HOSTSERVER = "NSSGSVR.global.avidww.com"     # Server that contains SQA scripts

SHARE = "TEST"             # NSSGSVR share that contains the Python scripts directory

USER = "qatest"

PASSWD = "Cmqat/$/$/$"     # slashes needed to escape special character '$'

##################################################################################

class InstallerError(Exception):

    """ Installer Exception class """

    def __init__(self, description):

        self.desc = description

def __str__(self):

        return self.desc

class PkgInstaller:

    """ Installer class for pkg files."""

    def __init__(self, packageName, mpkgList, dmgFile = None ):

        """

        packageName (str)  Name of "package" to be installed

        dmgFile     (str)  Path to dmg file to mount

        mpkgList    (list) List of mpkg files to launch when dmg file is mounted

        """

        self.dmgFile = dmgFile

        self.packageName = packageName

        self.mpkgList = mpkgList

self.mountpoint = os.path.join(os.getcwd(), self.packageName)

        self.removeMountPoint = False

if not type(self.mpkgList) == list:

            raise InstallerError("Expected list for parameter mpkgList received %s" % /

                                 type(self.mpkgList))

# Mountroot must exist for hdiutil to succeed.

        if not os.path.exists(self.mountpoint):

            print "Creating mountroot %s" % (self.mountpoint)

            os.makedirs(self.mountpoint)

            self.removeMountPoint = True

def _cleanup(self):

        """

        ## Performs cleanup

        """

        unmount_cmd = "hdiutil unmount %s" % (self.mountpoint)

if self.dmgFile:

            print "Unmounting %s" % (self.mountpoint)

            ret = os.system(unmount_cmd)

            if ret:

                raise InstallerError("hdiutil unmount of %s failed: errno %d" % /

                                 (self.mountpoint, ret))

            

            if self.removeMountPoint:

                print "Removing directory %s" % (self.mountpoint)

                os.rmdir(self.mountpoint)

def _mount_dmg(self):

        """ Mounts the dmg file. """

        hdiutil_mount = "hdiutil mount %s -mountpoint %s" % (self.dmgFile,

                                                         self.mountpoint)

        

        if os.path.exists(self.dmgFile):

            print "Mounting %s" % (self.dmgFile)

            ret = os.system(hdiutil_mount)

            if ret:

                raise InstallerError("hdiutil mount of %s failed: errno %d" % (self.dmgFile, ret))

        else:

            raise InstallerError("DMG file %s does not exist" % (self.dmgFile))

            

    def _launch_pkgs(self):

        """ Launches the pkg installers. """

        for install_file in self.mpkgList:

            if install_file.endswith('pkg'):

                install_path = os.path.join(self.mountpoint, install_file)

                if not os.path.exists(install_path):

                    raise InstallerError("File %s does not exist" % (install_path))

                # 'installer' is Apple's package installer tool.

                # -pkg specifies the package to be installed

                # -target specifies the destination install volume

                # -allow allows the installer to automatically upgrade any previous packages

                # see 'man installer' for more details.

                cmd = 'installer -pkg "%s" -target / -verbose -allow' % (install_path)

                ret = os.system(cmd)

                if ret:

                    msg = "Package %s failed to install: err %d" % (install_file, ret)

                    raise InstallerError(msg)

            else:

                raise InstallerError("File %s is not a valid package file" % install_file)

                

    def install(self):

        """ Main installer method. """

print "Installing package %s" % (self.packageName)

        if self.dmgFile:  

            self._mount_dmg()

        self._launch_pkgs()

        self._cleanup()

        print "Finished installing package %s" % (self.packageName)

def set_all_test_scripts_root(path):

    """

    ## Sets TEST_SCRIPTS_ROOT to <path>for

    ## both Bash and Tcsh shells if needed.

    """

    bash_line = 'export TEST_SCRIPTS_ROOT="%s"' % (path)

    tcsh_line = 'setenv TEST_SCRIPTS_ROOT "%s"' % (path)

---