在Python中同时运行三个函数不起作用

我想同时在几个Android设备上同时安装Android APK。在Python中同时运行三个函数不起作用

我的想法是来调用安装APK像shell命令：它启动新的终端处理

adb -s DEVICE_NAME install APK &

随后与&。

我的Python脚本应该同时执行install(device_name)函数。但它没有发生。有一个代码：

from ShellHelper import * 
from threading import Thread 
import time 
import datetime 


shellHelper = ShellHelper() 

apk_dir = "app-automation-integrationTest.apk" 

def install(device_name): 
    start_time = int(round(time.time() * 1000)) 
    print('[{:%H:%M:%S}]: '.format(datetime.datetime.now()) 
      + "Installation started on device '" + device_name + "'.") 

    install_cmd = "adb -s " + device_name + " install " + apk_dir + " &" 
    shellHelper.execute_shell(install_cmd) 

    end_time = int(round(time.time() * 1000)) 
    print('[{:%H:%M:%S}]: '.format(datetime.datetime.now()) 
      + "Installation ended on device '" + device_name + "'. It took: " + str(
     (end_time - start_time)/1000) + " seconds.") 


if __name__ == '__main__': 
    Thread(target=install("emulator-5554")).start() 
    Thread(target=install("emulator-5556")).start() 
    Thread(target=install("emulator-5558")).start()

和日志：

[23:31:50]: Installation started on device 'emulator-5554'. 
[23:32:33]: Installation ended on device 'emulator-5554'. It took: 42.671 seconds. 
[23:32:33]: Installation started on device 'emulator-5556'. 
[23:32:37]: Installation ended on device 'emulator-5556'. It took: 4.451 seconds. 
[23:32:37]: Installation started on device 'emulator-5558'. 
[23:32:46]: Installation ended on device 'emulator-5558'. It took: 8.98 seconds.

扔一边事实上，如果亚行能够在同一时间安装的APK的......我期望出现的情况是类似这样的东西：

[23:31:50]: Installation started on device 'emulator-5554'. 
[23:31:50]: Installation started on device 'emulator-5556'. 
[23:31:50]: Installation started on device 'emulator-5558'. 
[23:32:10]: Installation ended on device 'emulator-5554'. It took: 20.00 seconds. 
[23:32:30]: Installation ended on device 'emulator-5558'. It took: 40.00 seconds. 
[23:32:33]: Installation ended on device 'emulator-5556'. It took: 43.00 seconds.

我在做什么错？

//这个工作

Thread(target=partial(install, "emulator-5554")).start() 
Thread(target=partial(install, "emulator-5556")).start() 
Thread(target=partial(install, "emulator-5558")).start()

和预期结果：

[01:07:44]: Installation started on device 'emulator-5554'. 
[01:07:44]: Installation started on device 'emulator-5556'. 
[01:07:44]: Installation started on device 'emulator-5558'. 
[01:08:00]: Installation ended on device 'emulator-5558'. It took: 15.303 seconds. 
[01:08:00]: Installation ended on device 'emulator-5556'. It took: 15.571 seconds. 
[01:08:01]: Installation ended on device 'emulator-5554'. It took: 16.748 seconds.

来源

2017-02-15 F1sher

为什么'安装'不可调用？这是一个功能.. –

您需要传递对象，而不是通话。您可以使用线程的'args'构造函数属性指定函数的参数。部分不需要 –

谢谢你解释。我怎样才能运行它，而不使用部分？你能举个例子吗？ :) – F1sher

您可以在不偏运行在Thread构造使用args PARAM：

Thread(target=install, args=('emulator-5558',)).start()

来源

2017-02-16 08:58:28

在Python中同时运行三个函数不起作用

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