如何创建错误日志文件

Question

I use pyinstaller3.1 to create a single executable file in windows. If my code is wrong, will show

"Fatal Error! return -1".

What can I do, like Py2exe.

http://www.py2exe.org/index.cgi/StderrLog

If I user this methods like below, it creates "my_stderr.log" always. I want to create the log file, only in executable file error.

import sys
sys.stderr = open("my_stderr.log",'w')

Answer 1

您可以将代码放入try-except块中，并且在缓存异常时可以打开文件以写入日志。

Answer 2

Use user-defined-exceptions to catch your own error

Else: Simply write a log file using in except part :

f = open("/path/to/file","a+") 
f.write("your message") 
f.close()