Python: Regex unable to find any matches on string

Asked Jan 22 '19 at 09:28

Active Jan 22 '19 at 12:58

Viewed 248 times

I'm having trouble to find the matches with the above code:

sample="""[2019-01-02 16:15:17.882][P:1624/T:1420][UIPCall.cpp:743 
CUIPCall::HandleUICEvent()][Enter]
[2019-01-02 16:15:17.883][P:1624/T:1420][UIPCallState.cpp:1776 
CUIPCallIncomingLine1State::HandleUICEvent()][Enter]"""
pattern=r'\[(.*?)\]\[(.*?)\]\[(.+?)(HandleUICEvent|FastNtfClosed_Line1_Common|Login|Logout)\(\)\]\[(.*?)\]$'

p= re.compile(pattern, re.MULTILINE | re.DOTALL)

p.match(sample)

it is troubling me because it works on https://regex101.com/r/hw7pyY/1 but does not match anything on python.

It has to be re.match() as I need the .end() and .start() functions.

edited Jan 22 '19 at 12:58

hellow

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asked Jan 22 '19 at 09:28

SnakeFoot

`p.match(sample).groups()` ? – Rakesh Jan 22 '19 at 09:29
Use `re.finditer` – Wiktor Stribiżew Jan 22 '19 at 09:31
@WiktorStribiżew can you redirect me to the duplicate question link. – SnakeFoot Jan 22 '19 at 09:33
It is on top of the post. – Wiktor Stribiżew Jan 22 '19 at 09:34
@WiktorStribiżew i did try the re.finditer function but a found that i also needed the match.end() and match.start() functions. Do you know any other way to make it work with re.match() – SnakeFoot Jan 22 '19 at 09:36
`re.finditer` yields match data objects, so you may access `start` and `end` of each of the matches. – Wiktor Stribiżew Jan 22 '19 at 09:40
See https://ideone.com/awwbWl – Wiktor Stribiżew Jan 22 '19 at 09:47
@WiktorStribiżew any idea on why it works on regex101? – SnakeFoot Jan 22 '19 at 10:03
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/187114/discussion-between-snakefoot-and-wiktor-stribizew). – SnakeFoot Jan 22 '19 at 10:41
Please [format your post properly](https://stackoverflow.com/editing-help) and use the preview pane to verify, that your code is well indented. If you expect help from us, we expect some effort from you. – hellow Jan 22 '19 at 12:59

Python: Regex unable to find any matches on string

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