How to get this string "534641" (this value is dynamic, can be 6,5,4 digits)? How to find "-" before "534641"?
import re
string = "http://www.test.com.my/white-red-gift-perfume-powerbank-yellow-534641.html?ff=1\u0026s=Ebsr"
m = re.search('-(.+?).html', string).group(1)
print (m)
You are almost there. Since what you want is only digits, you could use \d to capture only digits:
>>> m = re.search('-(\d+).html', string).group(1)
>>> print (m)
534641
Another way would be to tell 'all characters excepts -':
>>> m = re.search('-([^-]+).html', string).group(1)
>>> print (m)
534641
For more info, see the doc.
Some quick notes: the .html should be \.html, avoid using names such as 'string', 'list' that are used by python. It could go wrong without knowing why.
You already have the number at the end. Just split on the dashes using:
m = re.search('-(.+?).html', string).group(1).split("-")
# last element in m is the number you are looking for
print (m[-1])
