Consider the following code
# ----------------------------
import re
z=re.match('(Spam\d)+', 'Spam4Spam2Spam7Spam8')
print z.group(0)
print z.group(1)
# ----------------------------
outputting :
----------------------------
Spam4Spam2Spam7Spam8
Spam8
----------------------------
The '(Spam\d)+' regexp is tested against 'Spam4Spam2Spam7Spam8' and the
regexp matches the string.
Group numbered one within the regex '(Spam\d)+' refers to Spam\d
The fours substrings
Spam4 Spam2 Spam7 and Spam8
match the group numbered 1.
So I don't understand why z.group(1) gives the last substring (ie Spam8
as the output shows), why not an another one, Spam4 for example ?
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