使用pyinstaller打包python程序时，打包的exe程序运行时出现进程不断增加至占满cpu使电脑死机
运行环境：
windows 10
python 3.7.7
pyinstaller 3.6
解决方法：
添加一条语句（pyinstaller >= 3.3)
if __name__=='__main__:' multiprocessing.freeze_support() # 添加此条 # 以下为程序代码 main()
pyinstaller < 3.3 参照 官方在github的解释
新建文件 multiprocess.py
内容如下：
import osimport sys# Module multiprocessing is organized differently in Python 3.4+try:
# Python 3.4+
if sys.platform.startswith('win'):
import multiprocessing.popen_spawn_win32 as forking else:
import multiprocessing.popen_fork as forkingexcept ImportError:
import multiprocessing.forking as forkingif sys.platform.startswith('win'):
# First define a modified version of Popen.
class _Popen(forking.Popen):
def __init__(self, *args, **kw):
if hasattr(sys, 'frozen'):
# We have to set original _MEIPASS2 value from sys._MEIPASS
# to get --onefile mode working.
os.putenv('_MEIPASS2', sys._MEIPASS)
try:
super(_Popen, self).__init__(*args, **kw)
finally:
if hasattr(sys, 'frozen'):
# On some platforms (e.g. AIX) 'os.unsetenv()' is not
# available. In those cases we cannot delete the variable
# but only set it to the empty string. The bootloader
# can handle this case.
if hasattr(os, 'unsetenv'):
os.unsetenv('_MEIPASS2')
else:
os.putenv('_MEIPASS2', '')
# Second override 'Popen' class with our modified version.
forking.Popen = _Popen在程序中引入模块即可
from multiprocess import *
