爬虫Traceback (most recent call last):异常

问题描述

今天在爬虫的时候经常遇到Traceback (most recent call last):异常，程序写得比较简陋，没有处理异常，导致爬虫程序经常报错停止。经过调试，发现是爬虫网站不稳定导致连接失败。

解决方法

maxTryNum = 20
for tries in range(maxTryNum):try:response = requests.get(urls[i], headers=headers, timeout=60)with open(dir_name + '/' + file_name,'wb') as f:f.write(response.content)except:if tries < (maxTryNum - 1):continueelse:print("Has tried %d times to access url %s, all failed!" % (maxTryNum, urls[i]))break

爬虫Traceback (most recent call last):异常相关推荐

Traceback (most recent call last):异常
今天运行代码,这段代码很有意识,就是有时候会报错,有时候又可以正常运行,看了一下报了这个错Traceback (most recent call last): 通常很难出现这样的错误.只能一点点排除: ...
Traceback (most recent call last):异常报错解决（1.22.）
1,Error occurred when finalizing GeneratorDataset iterator: Failed precondition 内存不足,将bach_size改小我改 ...
python traceback most recent_pyspider启动错误: Traceback (most recent call last):
安装了基于pyhton的爬虫pyspider. 用命令sudo pyspider all启动pyspider的时候报错: Traceback (most recent call last): File ...
已解决FilegotFoundError Traceback (most recent call last)
已解决(Python读取EXCEL文件报错)FilegotFoundError Traceback (most recent call last) 文章目录报错代码报错翻译报错原因解决方法千 ...
安装pyspider遇到Traceback (most recent call last)问题
项目场景: Python爬虫,安装pyspider遇到的问题. 问题描述提示:这里描述项目中遇到的问题: 一.安装步骤(为了好复现问题) 打开https://www.lfd.uci.edu/~goh ...
Traceback (most recent call last): File AttributeError: 'NoneType' object has no attribute 'group'
Traceback (most recent call last):File "<stdin>", line 1, in <module> Attribut ...
Traceback (most recent call last)AttributeError: ‘NumpyArrayIterator‘ object has no attribute ‘ndim‘
成功解决该问题! Traceback (most recent call last): File "C:/Users/-/Desktop/pythonProject2/main.py&quo ...
pip 10.0.0 BUG 解决方案Traceback (most recent call last): File /usr/bin/pip3, line 9, in module...
使用pip3 出现以下错误: Traceback (most recent call last): File "/usr/bin/pip3", line 9, in from pi ...
python安装包的时候报错 ERROR: Exception: Traceback (most recent call last): File “C:\Users\
Python下载scrapy的时候报错了,如下图: ERROR: Exception: Traceback (most recent call last): File "C:\Users\西 ...

爬虫Traceback (most recent call last):异常

问题描述

解决方法

爬虫Traceback (most recent call last):异常相关推荐

最新文章

热门文章