Python 3.7.3 : The python-slugify python module.

This python module named python-slugify can handle Unicode.
You can see this python module source code and examples at GITHUB webpage.
The install step with pip python tool is easy:

C:\Python373>cd Scripts
C:\Python373\Scripts>pip install python-slugify
Collecting python-slugify
...
Successfully built python-slugify
Installing collected packages: text-unidecode, python-slugify
Successfully installed python-slugify-3.0.2 text-unidecode-1.2

Let's see some simple example.

>>> from slugify import slugify
>>> txt = "___This is a test___"
>>> regex_pattern = r'[^-a-z0-9_]+'
>>> r = slugify(txt, regex_pattern=regex_pattern)
>>> print(r)
___this-is-a-test___

Remove an email address from a string:

>>> txt_email = "___My mail is catafest@yahoo.com *&@!@#$$76"
>>> regex_pattern =r'[\w\.]+\@[\w]+(?:\.[\w]{3}|\.[\w]{2}\.[\w]{2})\b'
>>> r = slugify(txt_email, regex_pattern=regex_pattern)
>>> print(r)
___my mail is - *&@!@#$$76

You can write your data into one text file:

>>> ftxt = open('C:\\Python373\\soup.txt','w')
>>> ftxt.write(soup)
Traceback (most recent call last):
  File "", line 1, in 
TypeError: write() argument must be str, not BeautifulSoup
>>> ftxt.write(str(soup))

If you got errors the use the slugify to fix it:

ftxt.write(slugify(str(soup)))