我总是使自己的日志记录。 / p>

这是一个工作示例：

main.py：

  import kivy 
 from kivy.app import App 
 from kivy.clock import Clock 
 from kivy.uix .label import Label 
 import logging 
 import thread 
 import time 

 def my_thread（log）：

 for i in range（2 ** 
 time.sleep（1）
 log.info（WOO％s，i）

 class MyLabelHandler（logging.Handler）：

 def __init __（self，label，level = logging.NOTSET）：
 logging.Handler .__ init __（self，level = level）
 self.label = label 

 def emit（self，record）：
使用Kivy主循环线程安全的Clock模块
 def f（dt = None）：
 self.label.text = self.format（record）＃use + = to append ...
 Clock.schedule_once（f）


 class MyApp（App）：
 def build（self）：
 label = Label（text =显示日志在这里）

 log = logging .getLogger（my.logger）
 log.level = logging.DEBUG 
 log.addHandler（MyLabelHandler（label，logging.DEBUG））

 thread.start_new（my_thread ，（log，））

返回标签


如果__name__ =='__main__'：
 MyApp（）。run（）
 

注意这里的简单线程来测试日志记录。

As written in the title , i need to redirect the logging module output to a Kivy label in the simple way possible. I searched for a solution on the web an i think the best methods are to overwrite the StreamHandler or the MemoryHandler in some way (but i don't know how to do this point).

Someone can help me to achieve this?

I use python 2.7

thanks

I always make my own logging.Handler for cases like these.

Here is a working example:

main.py:

import kivy
from kivy.app import App
from kivy.clock import Clock
from kivy.uix.label import Label
import logging
import thread
import time

def my_thread(log):

    for i in range(2**20):
        time.sleep(1)
        log.info("WOO %s", i)

class MyLabelHandler(logging.Handler):

    def __init__(self, label, level=logging.NOTSET):
        logging.Handler.__init__(self, level=level)
        self.label = label

    def emit(self, record):
        "using the Clock module for thread safety with kivy's main loop"
        def f(dt=None):
            self.label.text = self.format(record) #"use += to append..."
        Clock.schedule_once(f)


class MyApp(App):
    def build(self):
        label = Label(text="showing the log here")

        log = logging.getLogger("my.logger")
        log.level = logging.DEBUG
        log.addHandler(MyLabelHandler(label, logging.DEBUG))

        thread.start_new(my_thread, (log,))

        return label


if __name__ == '__main__':
    MyApp().run()

Notice the simple thread here to test the logging.