import random
from pygal import Bar
from multiprocessing import Process, Manager,freeze_support
class 骰子类():
def __init__(self, 骰子面数=6):
self.骰子面数 = 骰子面数
def 掷骰子结果方法(self):
return random.randint(1,self.骰子面数)
骰子实例 = 骰子类()
结果列表 = Manager().list()
def 掷骰子函数(次数):
for 投掷次数 in range(次数):
结果列表.append(骰子实例.掷骰子结果方法())
#掷骰子函数(100)
if __name__ == '__main__':
freeze_support()
骰子进程批量 = Pool(10)
for i in range(11):
骰子进程批量.apply_async(掷骰子函数,args=(100,))
骰子进程批量.close()
骰子进程批量.join()
print(结果列表)
每面出现次数字典 = Counter(结果列表)
print(每面出现次数字典)
报错
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "D:\Python\lib\multiprocessing\
spawn.py", line 105, in spawn_main
exitcode = _main(fd)
File "D:\Python\lib\multiprocessing\
spawn.py", line 114, in _main
prepare(preparation_data)
File "D:\Python\lib\multiprocessing\
spawn.py", line 225, in prepare
_fixup_main_from_path(data['init_main_from_path'])
File "D:\Python\lib\multiprocessing\
spawn.py", line 277, in _fixup_main_from_path
run_name="__mp_main__")
File "D:\Python\lib\
runpy.py", line 263, in run_path
pkg_name=pkg_name, script_name=fname)
File "D:\Python\lib\
runpy.py", line 96, in _run_module_code
mod_name, mod_spec, pkg_name, script_name)
File "D:\Python\lib\
runpy.py", line 85, in _run_code
exec(code, run_globals)
File "E:\python 笔记\
测试.py", line 15, in <module>
结果列表 = Manager().list()
File "D:\Python\lib\multiprocessing\
context.py", line 56, in Manager
m.start()
File "D:\Python\lib\multiprocessing\
managers.py", line 513, in start
self._process.start()
File "D:\Python\lib\multiprocessing\
process.py", line 105, in start
self._popen = self._Popen(self)
File "D:\Python\lib\multiprocessing\
context.py", line 322, in _Popen
return Popen(process_obj)
File "D:\Python\lib\multiprocessing\
popen_spawn_win32.py", line 33, in __init__
prep_data = spawn.get_preparation_data(process_obj._name)
File "D:\Python\lib\multiprocessing\
spawn.py", line 143, in get_preparation_data
_check_not_importing_main()
File "D:\Python\lib\multiprocessing\
spawn.py", line 136, in _check_not_importing_main
is not going to be frozen to produce an executable.''')
RuntimeError:
An attempt has been made to start a new process before the
current process has finished its bootstrapping phase.
This probably means that you are not using fork to start your
child processes and you have forgotten to use the proper idiom
in the main module:
if __name__ == '__main__':
freeze_support()
...
The "freeze_support()" line can be omitted if the program
is not going to be frozen to produce an executable.
emmm 环境在 windows 下。
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