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
如果需要错误类、错误消息和堆栈跟踪,请使用sys.exc_info()。
具有某些格式的最小工作代码:
import sys
import traceback
try:
ans = 1/0
except BaseException as ex:
# Get current system exception
ex_type, ex_value, ex_traceback = sys.exc_info()
# Extract unformatter stack traces as tuples
trace_back = traceback.extract_tb(ex_traceback)
# Format stacktrace
stack_trace = list()
for trace in trace_back:
stack_trace.append("File : %s , Line : %d, Func.Name : %s, Message : %s" % (trace[0], trace[1], trace[2], trace[3]))
print("Exception type : %s " % ex_type.__name__)
print("Exception message : %s" %ex_value)
print("Stack trace : %s" %stack_trace)
其输出如下:
Exception type : ZeroDivisionError
Exception message : division by zero
Stack trace : ['File : .\\test.py , Line : 5, Func.Name : <module>, Message : ans = 1/0']
函数sys.exc_info()提供有关最近异常的详细信息。它返回一个元组(type,value,traceback)。
traceback是traceback对象的一个实例。您可以使用提供的方法格式化跟踪。更多信息可以在回溯文档中找到。
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。
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'