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ahmedagour
Courses Plus Student 216 PointsI have wrote a function that returns the first digit in a string I am not sure what is the problem in my code
Not sure what the questions is asking of me
import re
def first_number(searchstring):
matchobj = re.match(r'\d', searchstring)
return matchobj
3 Answers
yk7
Full Stack JavaScript Techdegree Student 22,891 Points matchobj = re.findall(r'\d', searchstring)
ahmedagour
Courses Plus Student 216 Pointsbut doesn't this r' to tell python it is a string ?
yk7
Full Stack JavaScript Techdegree Student 22,891 PointsI tested your code in pycharm , and it's good, the string must start with digit and it returns a re.Match Class.
import re
def first_number(searchstring) :
''' extracting digit from string '''
a = re.match('\d', searchstring)
print(type(a))
print(a)
first_number("4Lives")
and it returns :
<class 're.Match'>
<re.Match object; span=(0, 1), match='4'>
if you want to grab a digit from a string regardless where it positioned in the string, "live4ever" you need to use findall() instead of match().
you are right , r is for raw. and has no effect here. sorry about before!