python 异常回溯_关于python：在循环中捕获异常回溯，然后在脚本末尾引发错误...

我正在尝试捕获所有异常错误，然后在脚本结尾处使其引发/显示所有回溯...

我有一个主脚本，例如调用我的下标：

errors = open('MISC/ERROR(S).txt', 'a')

try:

execfile("SUBSCRIPTS/Test1.py", {})

except Exception:

## Spread over two calls of errors.write for readability in code...

errors.write(strftime('%d/%m/%Y %H:%M:%S') +"

errors.write(traceback.format_exc() + '

try:

execfile("SUBSCRIPTS/Test2.py", {})

except Exception:

## Spread over two calls of errors.write for readability in code...

errors.write(strftime('%d/%m/%Y %H:%M:%S') +"

errors.write(traceback.format_exc() + '

errors.close()

此脚本使用追溯模块从脚本中检索错误...

在下一个示例中，这是我当前脚本的样子：

for x in y:

if"example" in x:

for tweet in tweetlist:

# Try

try:

twitter.update_status(status=tweet)

# Do some other stuff here if it suceeeds like...

print"oo example worked"

# Damn it failed, grab the whole traceback?

except Exception as reason:

FailedTweet = True

# Do some other stuff here like...

print"I did other stuff"

if FailedTweet:

print reason # Printing the reason because I don't know how to throw the exception error (full error)

基本上，存在一个大循环，可能会在此行中出现错误：twitter.update_status(status=tweet)，如果确实如此，我希望它能够捕获回溯错误，因为它在一个循环中，然后在脚本完成时，它可能不止一个我希望它将所有回溯错误发送回主脚本，以便将其全部写入错误文件。

从代码的第一位向文件写入错误的示例：

# 17/08/2014 12:30:00

# Traceback (most recent call last):

# File"C:\Main.py", line 117, in execute_subscripts

# execfile("SUBSCRIPTS/Test1.py", {})

# File"SUBSCRIPTS/Test1.py", line 440, in

# twitter.update_status(status=string)

# File"C:\Python27\lib\site-packages\twython\endpoints.py", line 90, in update_status

# return self.post('statuses/update', params=params)

# File"C:\Python27\lib\site-packages\twython\api.py", line 234, in post

# return self.request(endpoint, 'POST', params=params, version=version)

# File"C:\Python27\lib\site-packages\twython\api.py", line 224, in request

# content = self._request(url, method=method, params=params, api_call=url)

# File"C:\Python27\lib\site-packages\twython\api.py", line 194, in _request

# retry_after=response.headers.get('retry-after'))

# TwythonError: Twitter API returned a 403 (Forbidden), This request looks like it might be automated. To protect our users from spam and other malicious activity, we can't complete this action right now. Please try again later.

我将如何实现这一点，这很难解释，所以如果有什么不对的地方，请询问。

只需将回溯数据保存在列表中，然后在循环完成后打印列表的内容。

import traceback

reasons = []

for x in y:

if"example" in x:

for tweet in tweetlist:

# Try

try:

twitter.update_status(status=tweet)

# Do some other stuff here if it suceeeds like...

print"oo example worked"

# Damn it failed, grab the whole traceback?

except Exception:

reasons.append(traceback.format_exc())

# Do some other stuff here like...

print"I did other stuff"

for reason in reasons:

print reason

# If you want to raise a single exception that shows the traceback for

# each exception, you can do this:

class ChainedException(Exception):

def __init__(self, msg):

msg ="The following exceptions occurred:

{}".format(msg)

if reasons:

raise ChainedException('

'.join(reasons))

ChainedException的示例用法：

reasons = []

for i in range(5):

try:

raise Exception("Blah {}".format(i))

except Exception:

reasons.append(traceback.format_exc())

if reasons:

raise ChainedException("

".join(reasons))

输出：