How to add unicode \xa0 to mask in python?

Question

Python

You need to search by mask.
Now 99% of the products are displayed, but a few are not displayed due to the code in the html.
Removed it with replace, added it to the mask and $nbsp; and \xa0 (and other variations), but still does not want to display this product.
Previously, I added other unicode characters in the mask like this (\u2122, etc.) and everything works.
This one doesn't want to. Tell.
Now the mask looks like this:

name_tovar = re.findall('\<b\>+[a-zA-Z0-9_/.?"= \>\< \\ \/-\: &amp;]+\<\/b',page)

Answer 1

1. Inside the square brackets of the regexp, all characters are perceived either one at a time or as a range through a minus. Therefore & amp; means either &, or a, or m ... And there is no need to repeat the space in square brackets.
2. If you do not put r in front of the string constant, then the \ character is processed depending on the next character, which easily confuses the programmer. Most often, a regexp is defined with it, i.e. r'\< etc.' is more convenient.
3. To simply find the first product in tags, read about the non-greedy operator +
4. Still, parsing HTML with regexps can only be done where there is no way to put an HTML parsing library, for example, lxml.