最全py2exe

这次不是直接讲解下去，而是谈一下如何把我们写的游戏做成一个exe文件，这样一来，用户不需要安装python就可以玩了。扫清了游戏发布一大障碍啊！

perl，python，java等编程语言，非常好用，语法优美，功能强大；VB啥的，功能上编写的时候总有那么点不舒服的地方（个人见解），可是用户和受众极多，一个很大的原因就是：VB是微软提供的，可以很方便的编译（伪？）生成exe文件。有了exe，所有的Windows都能方便的使用了。

我们不能指望用户在玩我们的游戏之前都安装一个python和pygame，甚至还要装一些其他额外的库（比如上一章的gameobjects），这会吓退99%以上的人……所以把我们的游戏打包（注意是打包而不是编译，python毕竟是脚本程序）成一个可执行文件势在必行。

perl有perlcc（免费高效但配置极其复杂），perlapp（简单效果也不错但是收费）等工具；而对python来说，py2exe是不二之选，首先是免费的，而且压出来的文件，虽然不能和编译软件相比，还是不错的了。

到py2exe的官方网站下载安装包，注意要对应自己的python版本。

py2exe是需要写一个脚本进行打包的操作，使用下面这个专为pygame写就的脚本（参考py2exe官方），可以极大的方便打包操作，注意在使用前修改BuildExe里的各个参数

可以先从简单的程序开始，有了一点经验再尝试打包复杂的游戏。
一些Tips：

• 如果执行出错，会生成一个xxx.exe.log，参考这里的log信息看是不是少打包了东西。
• 一开始可以使用console来打包，这样可以在命令行里看到更多的信息。
• 对于每一个游戏，基本都需要拷贝上面的原始代码修改为独一无二的打包执行文件。
• 即使一个很小的py文件，最终生成的exe文件也很大（看安装的库而定，我这里最小4.7M左右），事实上py2exe在打包的时候会把无数的不需要的库都打进来导致最终文件臃肿，如果你安装了很繁杂的库(wxPython等）更是如此。使用zip打包以后查看里面的库文件，把不需要的逐一加入到self.exclude_modules中，最后可以把文件尺寸控制在一个可以接受的范围内。

2011/08/21 追记：
很多人在打包使用Font模块时出现问题，这里需要把sdl_ttf.dll声明为非系统文件，我已经修改了脚本默认就加入了。而且建议，如果将来是确定要打包为exe的，那么就不要使用系统字体，即”pygame.font.SysFont(xxx)”，而是使用字体文件，然后打包时将文件当作图片等一起打包，这样出问题的概率会大大降低。

2011/09/24 追记：
感谢blues_city网友，“dist_dir”应该是属于py2exe的特有options而不是setup的。

欢迎大家试用并提出建议，不断完善这个脚本。

http://www.pygame.org/wiki/Pygame2exe

Here is a sample script to compile a pygame app to a standalone windows application. It includes a hack to include pygame default font into executable file.

Just edit value in BuildExe.__init__ to fit you needs. This will only work for GUI apps, change "windows =" to "console =" in setup command would do the job.

To have a zipfile with libraries, just specify a zip file name. If you don‘t specify an icon file name, pygame icon will be used.

Changes by arit:
For this script to work I *had* to modify my font call in my game from Font = pygame.font.SysFont(None,16) # the created .exe does not run to Font = pygame.font.Font("freesansbold.ttf", 16) and additionally copy freesansbold.ttf into the same directory as the created .exe I also needed to add sdl_ttf.dll to the check for include files (see comment in source code bellow) (This has been suggested by http://stackoverflow.com/questions/6376194/font-module-error-when-using-py2exe) Then I saved the script bellow as game2exe.py in the same directory as my MyApps.py file. From the command promt inside this very directory I then executed the script by writing python game2exe.py Then I had to manually copy freesansbold.ttf into the subfolder "dist" where the MyApps.exe is created. Windows7 64bit Enterprise, Python 2.7.2, pygame-1.9.2a0.win32-py2.7

# This will create a dist directory containing the executable file, all the data
# directories. All Libraries will be bundled in executable file.
#
# Run the build process by entering ‘pygame2exe.py‘ or
# ‘python pygame2exe.py‘ in a console prompt.
#
# To build exe, python, pygame, and py2exe have to be installed. After
# building exe none of this libraries are needed.
#Please Note have a backup file in a different directory as if it crashes you 
#will loose it all!(I lost 6 months of work because I did not do this)
 
 
try:
    from distutils.core import setup
    import py2exe, pygame
    from modulefinder import Module
    import glob, fnmatch
    import sys, os, shutil
    import operator
except ImportError, message:
    raise SystemExit,  "Unable to load module. %s" % message
 
#hack which fixes the pygame mixer and pygame font
origIsSystemDLL = py2exe.build_exe.isSystemDLL # save the orginal before we edit it
def isSystemDLL(pathname):
    # checks if the freetype and ogg dll files are being included
    if os.path.basename(pathname).lower() in ("libfreetype-6.dll", "libogg-0.dll","sdl_ttf.dll"): # "sdl_ttf.dll" added by arit.
            return 0
    return origIsSystemDLL(pathname) # return the orginal function
py2exe.build_exe.isSystemDLL = isSystemDLL # override the default function with this one
 
class pygame2exe(py2exe.build_exe.py2exe): #This hack make sure that pygame default font is copied: no need to modify code for specifying default font
    def copy_extensions(self, extensions):
        #Get pygame default font
        pygamedir = os.path.split(pygame.base.__file__)[0]
        pygame_default_font = os.path.join(pygamedir, pygame.font.get_default_font())
 
        #Add font to list of extension to be copied
        extensions.append(Module("pygame.font", pygame_default_font))
        py2exe.build_exe.py2exe.copy_extensions(self, extensions)
 
class BuildExe:
    def __init__(self):
        #Name of starting .py
        self.script = "MyApps.py"
 
        #Name of program
        self.project_name = "MyApps"
 
        #Project url
        self.project_url = "about:none"
 
        #Version of program
        self.project_version = "0.0"
 
        #License of the program
        self.license = "MyApps License"
 
        #Auhor of program
        self.author_name = "Me"
        self.author_email = "example@example.com"
        self.copyright = "Copyright (c) 2009 Me."
 
        #Description
        self.project_description = "MyApps Description"
 
        #Icon file (None will use pygame default icon)
        self.icon_file = None
 
        #Extra files/dirs copied to game
        self.extra_datas = []
 
        #Extra/excludes python modules
        self.extra_modules = []
        self.exclude_modules = []
        
        #DLL Excludes
        self.exclude_dll = [‘‘]
        #python scripts (strings) to be included, seperated by a comma
        self.extra_scripts = []
 
        #Zip file name (None will bundle files in exe instead of zip file)
        self.zipfile_name = None
 
        #Dist directory
        self.dist_dir =‘dist‘
 
    ## Code from DistUtils tutorial at http://wiki.python.org/moin/Distutils/Tutorial
    ## Originally borrowed from wxPython‘s setup and config files
    def opj(self, *args):
        path = os.path.join(*args)
        return os.path.normpath(path)
 
    def find_data_files(self, srcdir, *wildcards, **kw):
        # get a list of all files under the srcdir matching wildcards,
        # returned in a format to be used for install_data
        def walk_helper(arg, dirname, files):
            if ‘.svn‘ in dirname:
                return
            names = []
            lst, wildcards = arg
            for wc in wildcards:
                wc_name = self.opj(dirname, wc)
                for f in files:
                    filename = self.opj(dirname, f)
 
                    if fnmatch.fnmatch(filename, wc_name) and not os.path.isdir(filename):
                        names.append(filename)
            if names:
                lst.append( (dirname, names ) )
 
        file_list = []
        recursive = kw.get(‘recursive‘, True)
        if recursive:
            os.path.walk(srcdir, walk_helper, (file_list, wildcards))
        else:
            walk_helper((file_list, wildcards),
                        srcdir,
                        [os.path.basename(f) for f in glob.glob(self.opj(srcdir, ‘*‘))])
        return file_list
 
    def run(self):
        if os.path.isdir(self.dist_dir): #Erase previous destination dir
            shutil.rmtree(self.dist_dir)
        
        #Use the default pygame icon, if none given
        if self.icon_file == None:
            path = os.path.split(pygame.__file__)[0]
            self.icon_file = os.path.join(path, ‘pygame.ico‘)
 
        #List all data files to add
        extra_datas = []
        for data in self.extra_datas:
            if os.path.isdir(data):
                extra_datas.extend(self.find_data_files(data, ‘*‘))
            else:
                extra_datas.append((‘.‘, [data]))
        
        setup(
            cmdclass = {‘py2exe‘: pygame2exe},
            version = self.project_version,
            description = self.project_description,
            name = self.project_name,
            url = self.project_url,
            author = self.author_name,
            author_email = self.author_email,
            license = self.license,
 
            # targets to build
            windows = [{
                ‘script‘: self.script,
                ‘icon_resources‘: [(0, self.icon_file)],
                ‘copyright‘: self.copyright
            }],
            options = {‘py2exe‘: {‘optimize‘: 2, ‘bundle_files‘: 1, ‘compressed‘: True,                                   ‘excludes‘: self.exclude_modules, ‘packages‘: self.extra_modules,                                   ‘dll_excludes‘: self.exclude_dll,
                                  ‘includes‘: self.extra_scripts} },
            zipfile = self.zipfile_name,
            data_files = extra_datas,
            dist_dir = self.dist_dir
            )
        
        if os.path.isdir(‘build‘): #Clean up build dir
            shutil.rmtree(‘build‘)
 
if __name__ == ‘__main__‘:
    if operator.lt(len(sys.argv), 2):
        sys.argv.append(‘py2exe‘)
    BuildExe().run() #Run generation
    raw_input("Press any key to continue") #Pause to let user see that things ends