多亏了SO和@QHarr,下面的代码可以很好地处理url,比如
https://www.amazon.com/dp/B00FSCBQV2
但这样的网址不起作用-
https://www.amazon.com/dp/B01N1ZD912/
我的结果是-
'R1_NO' :'.zg_hrsr { margin: 0; padding: 0; list-style-type:
none;}\n.zg_hrsr_item { margin: 0 0 0 10px; }\n.zg_hrsr_rank {
display:inline-block; width: 80px; text-align: right; }'}'
它应该回来了
R1_NO = 42553
R1_CAT = Baby Care Products
R2_NO = 6452
R2_CAT = Baby Bathing Products (Health & Household)
这是因为排名数据不在第一行。为了达到预期的效果,需要做些什么?这个脚本是否可以精简/更高效?你知道吗
我试过用bs4来处理选择1,得到文本条,我做什么都不管用。请帮帮我!你知道吗
fields = ['Amazon Best Sellers Rank']
temp_dict = {}
for field in fields:
element = soup.select_one('li:contains("' + field + '")')
if element is None:
temp_dict[field] = 'NA'
else:
if field == 'Amazon Best Sellers Rank':
item='NA'
item = [re.sub('#|\(','', string).strip() for string in soup.select_one('li:contains("' + field + '")').stripped_strings][1].split(' in ')
temp_dict[field] = item
else:
item = [string for string in element.stripped_strings][1]
temp_dict[field] = item.replace('(', '').strip()
ranks = soup.select('.zg_hrsr_rank')
ladders = soup.select('.zg_hrsr_ladder')
if ranks:
cat_nos = [item.text.split('#')[1] for item in ranks]
else:
cat_nos = ['NA']
if ladders:
cats = [item.text.split('\xa0')[1] for item in soup.select('.zg_hrsr_ladder')]
else:
cats = ['NA']
rankings = dict(zip(cat_nos, cats))
map_dict = {'Amazon Best Sellers Rank': ['R1_NO','R1_CAT']}
final_dict = {}
final_dict['R2_NO'] = 'NA'
final_dict['R2_CAT'] = 'NA'
final_dict['R3_NO'] = 'NA'
final_dict['R3_CAT'] = 'NA'
final_dict['R4_NO'] = 'NA'
final_dict['R4_CAT'] = 'NA'
for k,v in temp_dict.items():
if k == 'Amazon Best Sellers Rank' and v!= 'NA':
item = dict(zip(map_dict[k],v))
final_dict = {**final_dict, **item}
elif k == 'Amazon Best Sellers Rank' and v == 'NA':
item = dict(zip(map_dict[k], [v, v]))
final_dict = {**final_dict, **item}
else:
final_dict[map_dict[k]] = v
for k,v in enumerate(rankings):
#print(k + 1, v, rankings[v])
prefix = 'R' + str(k + 2) + '_'
final_dict[prefix + 'NO'] = v
final_dict[prefix + 'CAT'] = rankings[v]
我希望它能处理并返回问题中发布的两个url的值
因此,由于html布局的不同,剥离的字符串导致返回内联css。你可以尝试缩短和使用正则表达式。一个可以收紧正则表达式,但我会等着看,如果你找到失败的案例第一。你知道吗
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