无法使用Python多重处理写入文件 [英] Not able to write into a file using Python multiprocessing
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问题描述
from itertools import product
f = open('filename.txt', 'a')
def worker(i, j):
print i,j
f.write("%s\t%s\n"%(i,j))
return
def main():
a_list = ['1', '2', '3', '4', '5'] #5 item
b_list = ['6', '7', '8'] #3 item
# Total 5*3=15 combinations
from multiprocessing import Pool
pool = Pool(processes=4)
results = [pool.apply_async(worker, args=(i, j)) for i, j in product(a_list, b_list)]
output = [p.get() for p in results]
main()
f.close()
这是我试图运行的代码,并将结果存储在txt文件中,但是我无法找出为什么它没有写,尽管它在终端中打印.任何帮助将不胜感激.
this is the code I'm trying to run and store result in a txt file but I'm unable to findout why this isn't writing, although its printing in terminal. any help would be appreciated.
推荐答案
在f.write(...)
语句后添加f.flush()
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