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

在python 3.6之后,您可以使用格式化的字符串文字。很整洁!(https://docs.python.org/3/whatsnew/3.6.html#whatsnew36-pep498)

try
 ...
except Exception as e:
    logger.error(f"Failed to upload to ftp: {e}")

其他回答

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。

python 3不再支持该语法。请改用以下方法。

try:
    do_something()
except BaseException as e:
    logger.error('Failed to do something: ' + str(e))

使用str(ex)打印执行

try:
   #your code
except ex:
   print(str(ex))

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)

在Python 3中,str(ex)向我们提供了错误消息。您可以使用repr(ex)获取全文,包括引发的异常的名称。

arr = ["a", "b", "c"]

try:
    print(arr[5])
except IndexError as ex:
    print(repr(ex)) # IndexError: list index out of range
    print(str(ex)) # list index out of range