如何在动态文件夹中下载scrapy图像基于 [英] How to download scrapy images in a dyanmic folder based on
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问题描述
我正在尝试将默认路径 full/hash.jpg
覆盖到 <dynamic>/hash.jpg
,我已经尝试过 如何在动态文件夹中下载scrapy图像使用以下代码:
I'm trying to override default path full/hash.jpg
to <dynamic>/hash.jpg
, I've tried How to download scrapy images in a dyanmic folder using following code:
def item_completed(self, results, item, info):
for result in [x for ok, x in results if ok]:
path = result['path']
# here we create the session-path where the files should be in the end
# you'll have to change this path creation depending on your needs
slug = slugify(item['category'])
target_path = os.path.join(slug, os.path.basename(path))
# try to move the file and raise exception if not possible
if not os.rename(path, target_path):
raise DropItem("Could not move image to target folder")
if self.IMAGES_RESULT_FIELD in item.fields:
item[self.IMAGES_RESULT_FIELD] = [x for ok, x in results if ok]
return item
但我明白了:
Traceback (most recent call last):
File "/home/user/.venv/sepid/lib/python2.7/site-packages/twisted/internet/defer.py", line 577, in _runCallbacks
current.result = callback(current.result, *args, **kw)
File "/home/user/.venv/sepid/lib/python2.7/site-packages/twisted/internet/defer.py", line 839, in _cbDeferred
self.callback(self.resultList)
File "/home/user/.venv/sepid/lib/python2.7/site-packages/twisted/internet/defer.py", line 382, in callback
self._startRunCallbacks(result)
File "/home/user/.venv/sepid/lib/python2.7/site-packages/twisted/internet/defer.py", line 490, in _startRunCallbacks
self._runCallbacks()
--- <exception caught here> ---
File "/home/user/.venv/sepid/lib/python2.7/site-packages/twisted/internet/defer.py", line 577, in _runCallbacks
current.result = callback(current.result, *args, **kw)
File "/home/user/Projects/sepid/scraper/scraper/pipelines.py", line 44, in item_completed
if not os.rename(path, target_path):
exceptions.OSError: [Errno 2] No such file or directory
我不知道怎么了,还有没有其他方法可以改变路径?谢谢
I don't know what's wrong, also is there any other way to change the path? Thanks
推荐答案
问题出现是因为dst文件夹不存在,快速解决方法是:
Problem raises because dst folder doesn't exists, and quick solution is:
def item_completed(self, results, item, info):
for result in [x for ok, x in results if ok]:
path = result['path']
slug = slugify(item['designer'])
settings = get_project_settings()
storage = settings.get('IMAGES_STORE')
target_path = os.path.join(storage, slug, os.path.basename(path))
path = os.path.join(storage, path)
# If path doesn't exist, it will be created
if not os.path.exists(os.path.join(storage, slug)):
os.makedirs(os.path.join(storage, slug))
if not os.rename(path, target_path):
raise DropItem("Could not move image to target folder")
if self.IMAGES_RESULT_FIELD in item.fields:
item[self.IMAGES_RESULT_FIELD] = [x for ok, x in results if ok]
return item
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