我正在使用線(xiàn)程搜索文件：import threadingdef thread(seconds): for root, dirs, files in os.walk('/'): for file in files: if file == 'Viber.exe': viber = os.path.join(root, file) print(viber) print("Finish")threading.Thread(target = thread, args = (1,), daemon = True).start()之后我需要打開(kāi)那條路：import subprocesssubprocess.check_output(viber, shell=True)但我收到錯(cuò)誤：NameError: name 'viber' is not defined我不知道該怎么做，以及如何解決它（（（請(qǐng)有人幫忙！
1 回答
青春有我
TA貢獻(xiàn)1784條經(jīng)驗(yàn) 獲得超8個(gè)贊
當(dāng)您viber在函數(shù)中聲明變量時(shí)，python 認(rèn)為該變量是本地變量，并會(huì)在函數(shù)結(jié)束時(shí)將其刪除。
您只需要聲明viber為全局變量，這樣函數(shù)就不會(huì)聲明它自己的變量。
viber = None # declare global variable # add this line
import threading
def thread(seconds):
global viber # use global variable # add this line
for root, dirs, files in os.walk('/'):
for file in files:
if file == 'Viber.exe':
viber = os.path.join(root, file)
print(viber)
print("Finish")
threading.Thread(target = thread, args = (1,), daemon = True).start()
###########
import subprocess
subprocess.check_output(viber, shell=True) # use global variable
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