import ftplib
import urllib2
import os
import logging
logger = logging.getLogger('ftpuploader')
hdlr = logging.FileHandler('ftplog.log')
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(formatter)
logger.addHandler(hdlr)
logger.setLevel(logging.INFO)
FTPADDR = "some ftp address"

def upload_to_ftp(con, filepath):
    try:
        f = open(filepath,'rb')                # file to send
        con.storbinary('STOR '+ filepath, f)         # Send the file
        f.close()                                # Close file and FTP
        logger.info('File successfully uploaded to '+ FTPADDR)
    except, e:
        logger.error('Failed to upload to ftp: '+ str(e))

这似乎不起作用,我遇到语法错误,将所有类型的异常记录到文件中的正确方法是什么


当前回答

将其更新为更简单的日志记录器(适用于python2和3)。您不需要回溯模块。

import logging

logger = logging.Logger('catch_all')

def catchEverythingInLog():
    try:
        ... do something ...
    except Exception as e:
        logger.error(e, exc_info=True)
        ... exception handling ...

这是现在的旧方法(尽管仍然有效):

import sys, traceback

def catchEverything():
    try:
        ... some operation(s) ...
    except:
        exc_type, exc_value, exc_traceback = sys.exc_info()
        ... exception handling ...

exc_value是错误消息。

其他回答

最简单的方法是通过Polog库实现。导入它:

$ pip install polog

并使用:

from polog import log, config, file_writer


config.add_handlers(file_writer('file.log'))

with log('message').suppress():
    do_something()

请注意,代码垂直占用的空间少了多少:只有2行。

将其更新为更简单的日志记录器(适用于python2和3)。您不需要回溯模块。

import logging

logger = logging.Logger('catch_all')

def catchEverythingInLog():
    try:
        ... do something ...
    except Exception as e:
        logger.error(e, exc_info=True)
        ... exception handling ...

这是现在的旧方法(尽管仍然有效):

import sys, traceback

def catchEverything():
    try:
        ... some operation(s) ...
    except:
        exc_type, exc_value, exc_traceback = sys.exc_info()
        ... exception handling ...

exc_value是错误消息。

在某些情况下,您可以使用e.message或e.messages。但它并非在所有情况下都有效。无论如何,使用str(e)更安全

try:
  ...
except Exception as e:
  print(e.message)

对于未来的奋斗者,在python3.8.2(以及之前的几个版本)中,语法如下

except Attribute as e:
    print(e)

还有一种方法可以获得传递给异常类的原始值,而不必更改内容类型。

例如,我在我的一个框架中生成带有错误消息的类型代码。

try:
    # TODO: Your exceptional code here 
    raise Exception((1, "Your code wants the program to exit"))

except Exception as e:
    print("Exception Type:", e.args[0][0], "Message:", e.args[0][1])

输出

Exception Type: 1 Message: 'Your code wants the program to exit'