py2exe打包可执行文件时出现packaging缺失ImportError问题咨询

问题现象 #

开发了一款可连接MQTT Broker、通过win10toast实现Windows 10系统通知推送的软件，使用py2exe打包为exe后，运行程序抛出如下ImportError：

Traceback (most recent call last):
  File "suscribe.py", line 7, in <module>
  File "zipextimporter.pyc", line 168, in exec_module
  File "win10toast\__init__.pyc", line 15, in <module>
  File "zipextimporter.pyc", line 168, in exec_module
  File "pkg_resources\__init__.pyc", line 75, in <module>
  File "pkg_resources\extern\__init__.pyc", line 52, in create_module
  File "pkg_resources\extern\__init__.pyc", line 44, in load_module
ImportError: The 'packaging' package is required; normally this is bundled with this package so if you get this warning, consult the packager of your distribution.

当前配置 #

setup.py配置 #

from distutils.core import setup
import py2exe
from playsound import playsound 
import random
import time

from paho.mqtt import client as mqtt_client
from win10toast import ToastNotifier
packages = ['pkg_resources','win10toast','zipextimporter']
setup(
    name="Nombre ejecutable",
    version="1.0",
    description="Breve descripcion",
    author="autor",
    author_email="email del autor",
    url="url del proyecto",
    license="tipo de licencia",
    scripts=["suscribe.py"],
    console=["suscribe.py"],
    options={"py2exe": {"bundle_files": 1},
            'build_exe': {'packages':packages}
    },
    zipfile=None,
)

主程序导入语句 #

from playsound import playsound 
import random
import time

from paho.mqtt import client as mqtt_client
from win10toast import ToastNotifier

解决步骤 #

• 先确认本地Python环境已安装packaging依赖，执行安装命令：
  pip install packaging
• 修改setup.py中的包收集配置，把缺失的packaging以及其他用到的第三方依赖加入packages列表，同时补充includes配置强制打包packaging的子模块（py2exe无法自动递归收集这些子模块），修改后的options配置如下：

packages = ['pkg_resources','win10toast','zipextimporter','packaging','paho.mqtt','playsound']
setup(
    # 其他原有配置保持不变
    options={
        "py2exe": {"bundle_files": 1},
        'build_exe': {
            'packages': packages,
            'includes': ['packaging.version', 'packaging.specifiers', 'packaging.requirements', 'packaging.markers']
        }
    },
    zipfile=None,
)

• 删除之前打包生成的build、dist缓存目录，重新执行打包命令即可：
  python setup.py py2exe

内容的提问来源于stack exchange，提问作者Sergio