How to get the float values after particular symbol using regex in python?

I am new to python, I have been using regex for matching, etc. Now I am facing a small issue with it, I have a string str = "vans>=20.09 and stands == 'four'". I want the values after the Comparison Operators, I have used regex to extract that the pattern which I gave is working fine in extracting the values like int and strings but it is not extracting the float values. What is the best pattern, so that regex will extract all kind of values(int, float, strings)?

My code:

import re
str = "vans>=20.09 and stands == 'four'" 
rx = re.compile(r"""(?P<key>\w+)\s*[<>=]+\s*'?(?P<value>\w+)'?""")
result = {m.group('key'): m.group('value') for m in rx.finditer(str)}

which gives:

{'vans': '20', 'stands': 'four'}

Expected Output:

{'vans': '20.09', 'stands': 'four'}