概述
pipe = subprocess.Popen(command,stdout=subprocess.PIPE,stderr=subprocess.PIPE,universal_newlines=True) if "" == pipe.stdout.readline(): print("Success") self.isCommandExectutionSuccessful = True if not "" == pipe.stderr.readline(): print("Error") self.isCommandExectutionSuccessful = True
或者:
if "" == pipe.stdout.readline(): print("Success") self.isCommandExectutionSuccessful = True else: print("Error") self.isCommandExectutionSuccessful = False
和:
if not "" == pipe.stderr.readline(): print("Success") self.isCommandExectutionSuccessful = True else: print("Error") self.isCommandExectutionSuccessful = False
check_call方法在这里可能是有用的.看到这里的python docs:https://docs.python.org/2/library/subprocess.html#subprocess.check_call
然后,您可以使用以下内容:
try: subprocess.check_call(command) except subprocess.CalledProcessError: # There was an error - command exited with non-zero code
然而,这依赖于命令返回0的退出代码,用于成功完成,并且返回错误的非零值.
如果还需要捕获输出,那么check_output方法可能更合适.如果需要,也可以重定向标准错误.
try: proc = subprocess.check_output(command,stderr=subprocess.STDOUT) # do something with output except subprocess.CalledProcessError: # There was an error - command exited with non-zero code
请参阅这里的文档:https://docs.python.org/2/library/subprocess.html#subprocess.check_output
总结
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