I was in IDLE, and decided to use regex to sort out a string. But when I typed in what the online tutorial told me to, all it would do was print:
<_sre.SRE_Match object at 0x00000000031D7E68>
Full program:
import re
reg = re.compile("[a-z]+8?")
str = "ccc8"
print(reg.match(str))
result:
<_sre.SRE_Match object at 0x00000000031D7ED0>
Could anybody tell me how to actually print the result?
You need to include .group()
after to the match
function so that it would print the matched string otherwise it shows only whether a match happened or not. To print the chars which are captured by the capturing groups, you need to pass the corresponding group index to the .group()
function.
>>> import re
>>> reg = re.compile("[a-z]+8?")
>>> str = "ccc8"
>>> print(reg.match(str).group())
ccc8
Regex with capturing group.
>>> reg = re.compile("([a-z]+)8?")
>>> print(reg.match(str).group(1))
ccc
re.match(pattern, string, flags=0)
If zero or more characters at the beginning of string match the regular expression pattern, return a corresponding MatchObject instance. Return None if the string does not match the pattern; note that this is different from a zero-length match.
Note that even in MULTILINE mode, re.match() will only match at the beginning of the string and not at the beginning of each line.