在Python中同時運行三個函數不起作用

我想同時在幾個Android設備上同時安裝Android APK。在Python中同時運行三個函數不起作用

我的想法是來調用安裝APK像shell命令：它啓動新的終端處理

adb -s DEVICE_NAME install APK &

隨後與&。

我的Python腳本應該同時執行install(device_name)函數。但它沒有發生。有一個代碼：

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()

和日誌：

[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.

扔一邊事實上，如果亞行能夠在同一時間安裝的APK的......我期望出現的情況是類似這樣的東西：

[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.

我在做什麼錯？

//這個工作

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

和預期結果：

[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.

來源

2017-02-15 F1sher

爲什麼'安裝'不可調用？這是一個功能.. –

您需要傳遞對象，而不是通話。您可以使用線程的'args'構造函數屬性指定函數的參數。部分不需要 –

謝謝你解釋。我怎樣才能運行它，而不使用部分？你能舉個例子嗎？ :) – F1sher

您可以在不偏運行在Thread構造使用args PARAM：

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

來源

2017-02-16 08:58:28

在Python中同時運行三個函數不起作用

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