python - Removing numbers mixed with letters from string -

suppose have string such :

string = 'this string 22 not yet perfect1234 , 123pretty can be.' 

i want remove numbers which mixed words, such 'perfect1234' , '123pretty', but not '22', string , output follows:

string = 'this string 22 not yet perfect , pretty can be.' 

is there way in python using regex or other method? appreciated. thank you!

s = 'this string 22 not yet perfect1234 , 123pretty can be.'  new_s = "" word in s.split(' '):     if any(char.isdigit() char in word) , any(c.isalpha() c in word):         new_s += ''.join([i in word if not i.isdigit()])     else:         new_s += word     new_s += ' ' 

and result:

'this string 22 not yet perfect , pretty can be.'