Python 将不同文件的日志记录重定向到QPlainTextEdit
我的PyQt5应用程序是一个GUI，它在Python 将不同文件的日志记录重定向到QPlainTextEdit,python,logging,pyqt5,stdout,qprocess,Python,Logging,Pyqt5,Stdout,Qprocess,我的PyQt5应用程序是一个GUI，它在QProcess中运行python脚本other_module.py另一个_module.py有一个日志机制，可以写入stdout。我希望能够连接登录另一个_module.py并将其重定向到GUI中的文本框，以便打印/附加到GUI中的文本框中。我的代码在下面 my_gui.py import sys from PyQt5 import QtWidgets from PyQt5.QtCore import QProcess import logging im
QProcessother_module.py另一个_module.pystdout另一个_module.pyimport sys
from PyQt5 import QtWidgets
from PyQt5.QtCore import QProcess
import logging
import another_module # This file has a sample logging mechanism which I would like to have access in my_gui.py
logging.basicConfig(level=logging.DEBUG, format=' %(asctime)s - %(name)s - %(levelname)s - %(message)s')
class QTextEditLogger(logging.Handler):
def __init__(self, parent):
super().__init__()
self.widget = QtWidgets.QPlainTextEdit(parent)
self.widget.setReadOnly(True)
def emit(self, record):
msg = self.format(record)
self.widget.appendPlainText(msg)
class MyDialog(QtWidgets.QDialog, QtWidgets.QPlainTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
# Setup logging here:
logTextBox = QTextEditLogger(self)
logTextBox.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
logging.getLogger().addHandler(logTextBox) # root logging nicely redirects to logTextBox
logging.getLogger().setLevel(logging.DEBUG)
another_module.logger.addHandler(logTextBox) # logging of the other file is not redirected to logTextBox
another_module.logger.setLevel(logging.DEBUG)
self.process = None
self._button = QtWidgets.QPushButton(self)
self._button.setText('Start')
layout = QtWidgets.QVBoxLayout()
layout.addWidget(logTextBox.widget)
layout.addWidget(self._button)
self.setLayout(layout)
self._button.clicked.connect(self.test)
def test(self):
logging.debug('damn, a bug')
logging.info('something to remember')
logging.warning('that\'s not right')
logging.error('foobar')
self.process = QProcess(self)
self.process.started.connect(lambda: print('Started!'))
self.process.finished.connect(lambda: print('Finished!'))
self.process.startDetached('python another_module.py')
app = QtWidgets.QApplication(sys.argv)
dlg = MyDialog()
dlg.show()
dlg.raise_()
sys.exit(app.exec_())
import logging
import sys
import time
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s:%(name)s:%(funcName)s:%(lineno)d:%(message)s')
file_handler = logging.FileHandler('another_module.log')
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
stream_handler = logging.StreamHandler(sys.stdout)
stream_handler.setFormatter(formatter)
logger.addHandler(file_handler)
logger.addHandler(stream_handler)
def create_some_log():
while True:
logger.debug('<<different file>> damn, a bug')
logger.info('<<different file>> something to remember')
logger.warning('<<different file>> that\'s not right')
logger.error('<<different file>> foobar')
time.sleep(5)
if __name__ == '__main__':
create_some_log()
import sys
from PyQt5 import QtWidgets
from PyQt5.QtCore import QProcess
import logging
import another_module # This file has a sample logging mechanism which I would like to have access in my_gui.py
logging.basicConfig(level=logging.DEBUG, format=' %(asctime)s - %(name)s - %(levelname)s - %(message)s')
class QTextEditLogger(logging.Handler):
def __init__(self, parent):
super().__init__()
self.widget = QtWidgets.QPlainTextEdit(parent)
self.widget.setReadOnly(True)
def emit(self, record):
msg = self.format(record)
self.widget.appendPlainText(msg)
class MyDialog(QtWidgets.QDialog, QtWidgets.QPlainTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
# Setup logging here:
logTextBox = QTextEditLogger(self)
logTextBox.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))
logging.getLogger().addHandler(logTextBox) # root logging nicely redirects to logTextBox
logging.getLogger().setLevel(logging.DEBUG)
another_module.logger.addHandler(logTextBox) # logging of the other file is not redirected to logTextBox
another_module.logger.setLevel(logging.DEBUG)
self.process = None
self._button = QtWidgets.QPushButton(self)
self._button.setText('Start')
layout = QtWidgets.QVBoxLayout()
layout.addWidget(logTextBox.widget)
layout.addWidget(self._button)
self.setLayout(layout)
self._button.clicked.connect(self.test)
def test(self):
logging.debug('damn, a bug')
logging.info('something to remember')
logging.warning('that\'s not right')
logging.error('foobar')
self.process = QProcess(self)
self.process.started.connect(lambda: print('Started!'))
self.process.finished.connect(lambda: print('Finished!'))
self.process.startDetached('python another_module.py')
app = QtWidgets.QApplication(sys.argv)
dlg = MyDialog()
dlg.show()
dlg.raise_()
sys.exit(app.exec_())
import logging
import sys
import time
logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)
formatter = logging.Formatter('%(asctime)s:%(name)s:%(funcName)s:%(lineno)d:%(message)s')
file_handler = logging.FileHandler('another_module.log')
file_handler.setLevel(logging.INFO)
file_handler.setFormatter(formatter)
stream_handler = logging.StreamHandler(sys.stdout)
stream_handler.setFormatter(formatter)
logger.addHandler(file_handler)
logger.addHandler(stream_handler)
def create_some_log():
while True:
logger.debug('<<different file>> damn, a bug')
logger.info('<<different file>> something to remember')
logger.warning('<<different file>> that\'s not right')
logger.error('<<different file>> foobar')
time.sleep(5)
if __name__ == '__main__':
create_some_log()
2020-10-04 22:39:23,975 - root - DEBUG - damn, a bug
2020-10-04 22:39:23,976 - root - INFO - something to remember
2020-10-04 22:39:23,976 - root - WARNING - that's not right
2020-10-04 22:39:23,976 - root - ERROR - foobar
如果要使用QProcess运行脚本，那么它将在另一个进程中运行，因此执行
另一个模块.logger.addHandler（logTextBox）另一个模块.logger.setLevel（logging.DEBUG）