Question

我正在尝试从python脚本运行tftp。我启用它作为Windows 10功能（http://www.trishtech.com/2014/10/enable-tftp-telnet-in-windows-10/），所以我可以通过命令行运行它。但是当我尝试通过python运行它时，我得到了错误。我尝试了3种调用它的方法：os.system，subprocess.call，subprocess.Popen，并且作为“控件”使用这些子进程成功调用'dir'。我也尝试从完整路径调用tftp。代码和输出粘贴在下面。我添加了延迟和一些打印来帮助解析。

我的猜测是，在使用这些方法时，我启用的其他“Windows功能”不是Python看到的环境的一部分。但我不确定如何指定环境以包含该功能！

call("dir", shell = True)
print "*******************************************"
time.sleep(1)
call("tftp", shell = True)
print "*******************************************"
time.sleep(1)
call("C:\Windows\System32\\tftp.exe", shell = True)
print "*******************************************"
time.sleep(1)
Popen("dir", shell = True)
print "*******************************************"
time.sleep(1)
Popen("tftp", shell = True)
print "*******************************************"
time.sleep(1)
Popen("C:\Windows\System32\\tftp.exe", shell = True)
print "*******************************************"
time.sleep(1)
os.system("dir")
print "*******************************************"
time.sleep(1)
os.system("tftp")
print "*******************************************"
time.sleep(1)
os.system("C:\Windows\System32\\tftp.exe")
print "*******************************************"
time.sleep(1)

我得到的输出是：

Directory of C:\[REDACTED]

07/26/2016  11:05 AM    <DIR>          .
07/26/2016  11:05 AM    <DIR>          ..
07/26/2016  11:05 AM             1,724 [REDACTED].py
07/26/2016  11:05 AM             1,828 [REDACTED].pyc
07/23/2016  05:36 PM             1,933 prep_for_bootload.py
07/26/2016  07:52 AM                13 s.bat
07/26/2016  11:19 AM             1,449 scrap.py
07/26/2016  10:38 AM               672 test_script.py
07/26/2016  10:39 AM                90 upload_script.bat
               7 File(s)          7,709 bytes
               2 Dir(s)  222,286,884,864 bytes free
*******************************************
'tftp' is not recognized as an internal or external command,
operable program or batch file.
*******************************************
'C:\Windows\System32\tftp.exe' is not recognized as an internal or external command,
operable program or batch file.
*******************************************
*******************************************
 Volume in drive C has no label.
 Volume Serial Number is 2AC7-8D0E

 Directory of C:\Users\[REDACTED]

07/26/2016  11:05 AM    <DIR>          .
07/26/2016  11:05 AM    <DIR>          ..
07/26/2016  11:05 AM             1,724 [REDACTED]
07/26/2016  11:05 AM             1,828 [REDACTED]
07/23/2016  05:36 PM             1,933 prep_for_bootload.py
07/26/2016  07:52 AM                13 s.bat
07/26/2016  11:19 AM             1,449 scrap.py
07/26/2016  10:38 AM               672 test_script.py
07/26/2016  10:39 AM                90 upload_script.bat
               7 File(s)          7,709 bytes
               2 Dir(s)  222,286,884,864 bytes free
*******************************************
'tftp' is not recognized as an internal or external command,
operable program or batch file.
*******************************************
'C:\Windows\System32\tftp.exe' is not recognized as an internal or external command,
operable program or batch file.
 Volume in drive C has no label.
 Volume Serial Number is 2AC7-8D0E

 Directory of C:\Users\[REDACTED]

07/26/2016  11:05 AM    <DIR>          .
07/26/2016  11:05 AM    <DIR>          ..
07/26/2016  11:05 AM             1,724 [REDACTED]
07/26/2016  11:05 AM             1,828 [REDACTED]
07/23/2016  05:36 PM             1,933 prep_for_bootload.py
07/26/2016  07:52 AM                13 s.bat
07/26/2016  11:19 AM             1,449 scrap.py
07/26/2016  10:38 AM               672 test_script.py
07/26/2016  10:39 AM                90 upload_script.bat
               7 File(s)          7,709 bytes
               2 Dir(s)  222,286,884,864 bytes free
*******************************************
'tftp' is not recognized as an internal or external command,
operable program or batch file.
*******************************************
'C:\Windows\System32\tftp.exe' is not recognized as an internal or external command,
operable program or batch file.
*******************************************

Answer 1

请参阅：@eryksun的回复以获得正确答案。引用这里：

＆＃34;要在任何一种情况下工作，请使用system32 =＆＃39; SysNative＆＃39;如果platform.architecture（）[0] ==＆＃39; 32bit＆＃39;否则＆＃39; System32＆＃39;。然后创建完全限定的路径为tftp_path = os.path.join（os.environ [＆＃39; SystemRoot＆＃39;]，system32，＆＃39; TFTP.EXE＆＃39;）＆＃34;

如何通过Python运行“Windows功能”？

1 个答案: