Question

我使用子进程运行另一个python文件，该文件偶尔会崩溃。我想记录（PyCharm）输出中的数据并将其保存到文本文件中，以便稍后我可以找出问题所在。例如：

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/urllib/request.py", line 1254, in do_open
    h.request(req.get_method(), req.selector, req.data, headers)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 1106, in request
    self._send_request(method, url, body, headers)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 1151, in _send_request
    self.endheaders(body)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 1102, in endheaders
    self._send_output(message_body)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 934, in _send_output
    self.send(msg)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 877, in send
    self.connect()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/http/client.py", line 849, in connect
    (self.host,self.port), self.timeout, self.source_address)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/socket.py", line 711, in create_connection
    raise err
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/socket.py", line 702, in create_connection
    sock.connect(sa)
ConnectionRefusedError: [Errno 61] Connection refused

这将是子进程崩溃后的输出。我想将其保存到文件中，然后重新启动子进程。看起来有点像这样：

sub = subprocess.Popen([sys.executable,...])

if sub.poll() is None:

    os.system("screencapture -x crash.png")
    file = open('log.txt', 'w')

    #file.write() the output

    start_process() #restarts the subprocess

Answer 1

我认为这应该做你想做的事情

with open('log_file', 'w') as f:
    sub = subprocess.Popen(..., subprocess.STDOUT=f)
    retval = sub.wait()
    if retval != 0:
        start_process()

输出崩溃日志到txt文件

1 个答案: