I have some text in Python which is composed of numbers and alphabets. Something like this:
s = "12 word word2"
From the string s, I want to remove all the words containing only numbers
So I want the result to be
s = "word word2"
This is a regex I have but it works on alphabets i.e. it replaces each alphabet by a space.
re.sub('[\ 0-9\ ]+', ' ', line)
Can someone help in telling me what is wrong? Also, is there a more time-efficient way to do this than regex?
Thanks!
You can use this regex:
>>> s = "12 word word2"
>>> print re.sub(r'\b[0-9]+\b\s*', '', s)
word word2
\b is used for word boundary and \s* will remove 0 or more spaces after your number word.
re.sub(r'\b[0-9]+\b\W*', '', s) as \W matches space or any other non-word character.Using a regex is probably a bit overkill here depending whether you need to preserve whitespace:
s = "12 word word2"
s2 = ' '.join(word for word in s.split() if not word.isdigit())
# 'word word2'
Without using any external library you could do:
stringToFormat = "12 word word2"
words = ""
for word in stringToFormat.split(" "):
try:
int(word)
except ValueError:
words += "{} ".format(word)
print(words)
