輸出崩潰日誌到txt文件

我正在使用一個子進程來運行另一個python文件，它往往會偶爾崩潰。我想從（PyCharm）輸出中記錄數據並將其保存到文本文件中，以便稍後可以找出問題所在。例如：輸出崩潰日誌到txt文件

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

這將是子流程崩潰後的輸出。我想將它保存到一個文件，然後重新啓動子進程。它看起來有點像這樣：

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

來源

2017-02-21 Lander

我想這應該做你想要什麼

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

來源

2017-02-21 12:51:21 scytale

輸出崩潰日誌到txt文件

回答

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