Python 2.7.14
。我需要使用subprocess.call,它每次都会失败。根据python doc,不应使用shell = True。我也想知道为什么它失败了。但是如果我不通过
shell = True
python
ActivePython 2.7.14.2717 (ActiveState Software Inc.) based on
Python 2.7.14 (default, Dec 15 2017, 16:31:45) [MSC v.1500 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import subprocess
>>> subprocess.call(['date'])
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\subprocess.py", line 168, in call
return Popen(*popenargs, **kwargs).wait()
File "C:\Python27\lib\subprocess.py", line 390, in __init__
errread, errwrite)
File "C:\Python27\lib\subprocess.py", line 640, in _execute_child
startupinfo)
WindowsError: [Error 2] The system cannot find the file specified
但是当使用shell = True运行时,它运行良好
>>> subprocess.call(['date'],shell=True)
The current date is: Wed 12/04/2019
Enter the new date: (mm-dd-yy)
我也在Mac上尝试过,subprocess.call在没有的情况下也可以正常运行请帮助。shell = True
我正在Windows 10 64bit上使用Python 2.7.14。我需要使用subprocess.call,但是如果我不通过shell = True,它每次都会失败。根据python文档,不应使用shell = True。另外我...
date
不是可执行文件,而是builtin function of cmd.exe。您不能在外壳之外使用它。