Question

我正在运行Flask项目。我试图将所有日志从调试级别记录到控制台。这是我的代码：

#!flask/bin/python
import logging

from app import app

logging.basicConfig(level=logging.DEBUG, format = '%(asctime)s [%(process)d %(name)s] %(levelname)s %(message)s')
logging.debug('test')
log = logging.getLogger('werkzeug')
log.setLevel(logging.DEBUG)
log.debug('test')

if __name__ == '__main__':
    print 'crazy'
    log.debug('test')
    app.run(host =  '0.0.0.0', port = 8100, debug = True, processes = 8)

这是结果（其中一个奇怪的事情是有两个'疯狂'打印）：

(flask) [felixc@diamond flask]$ ./run.py 
crazy
crazy

我在控制台上找不到任何东西。控制台上甚至没有显示“测试”。那么我的日志在哪里？我的Python是CentOS 6.9上的v2.7.13。

使用basicConfig更新日志记录：

(flask) [felixc@diamond flask]$ ipython
Python 2.7.13 (default, Jun 22 2017, 13:33:06) 
Type "copyright", "credits" or "license" for more information.

IPython 5.5.0 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

In [1]: edit
IPython will make a temporary file named: 
/tmp/ipython_edit_pUodOs/ipython_edit_WWATn8.py
Editing... done. Executing edited code...
Out[1]: "import logging\nlogging.basicConfig(level=logging.DEBUG, format = '%(asctime)s [%(process)d %(name)s] %(levelname)s %(message)s')\n"

In [2]: logging.debug('test')
2017-12-12 14:51:06,042 [14863 root] DEBUG test

Answer 1

我刚刚找到了根本原因。我试图在我的项目中使用Ansible，但似乎任何导入都会导致日志记录无效。我没有窥探Ansible的源代码，但我使用了测试代码然后发现了它。

#!flask/bin/python
import logging

from collections import namedtuple

from ansible.parsing.dataloader import DataLoader
#from ansible.vars.manager import VariableManager
#from ansible.inventory.manager import InventoryManager
#from ansible.executor.playbook_executor import PlaybookExecutor


logging.basicConfig(level=logging.DEBUG, format = '%(asctime)s [%(process)d %(name)s] %(levelname)s %(message)s')
logging.debug('test')
logging.info('test2')
logging.error('test3')

来自Ansible模块的任何导入都会导致日志记录消失。我会试着找到原因。我的Ansible版本是2.4.2.0

我的日志在哪里？

1 个答案: