Identifying different date patterns in python list

Question

I have this sample logs data in a list

data = ["[2022-08-15 17:42:32,436: INFO/MainProces] lorqw q addadasdasdasdad",
"2022-10-24T13:29:50.579Z dasdadasdasdadadadadaddada",
"asdadadad adasdas3453 454234 fsdf53",
"Mon, 24 Oct 2022 13:29:48 GMT express:router expressInit : /health",
'time="2022-10-24T13:29:12Z" level=error msg="checking config status failed: sdadasd"',
"2022/10/24 13:29:15 [error] 234 ssdfsd 435345"]

what I tried so far to print the item if the date is exist along with it’s index

for index, elem in enumerate(data):
    if ']' and '[' in elem:
        print(f'Date found at index: {index}')

current output:

Date found at index: 0
Date found at index: 5

Expected Output:

Date found at index: 0
Date found at index: 1
Date found at index: 3
Date found at index: 4
Date found at index: 5

Asked By: GreekGod

||

Source

Answer 1

Since the only real repeating part of the date is the time, I’d chase the time with a regex:

for index, entry in enumerate(data):
  if re.search(r'(s|T)[0-9]{2}:[0-9]{2}:[0-9]{2}([.,][0-9]+)*', entry):
    print(f"Found date in {index}")

Answered By: Nico

Answer 2

Look at this module(im not owner) – https://github.com/ishirav/date-detector
There is links to similar projects also.

Answered By: necro

Answer 3

You can use this collection of regular expressions

import re

data = [
    "[2022-08-15 17:42:32,436: INFO/MainProces] lorqw q addadasdasdasdad",
    "2022-10-24T13:29:50.579Z dasdadasdasdadadadadaddada",
    "asdadadad adasdas3453 454234 fsdf53",
    "Mon, 24 Oct 2022 13:29:48 GMT express:router expressInit : /health",
    'time="2022-10-24T13:29:12Z" level=error msg="checking config status failed: sdadasd"',
    "2022/10/24 13:29:15 [error] 234 ssdfsd 435345"
]

exps = [
    r"(d{4}[-/]d{2}[-/]d{2})", # year / month / day
    r"(d{2}:d{2}:d{2})",       # hour : min : sec
    r"((?=.*(jan|feb|mar|apr|may|jun|jul|aug|sept|oct|nov|dec))(?=.*(mon|tues|wed|thurs|fri)))",
]

p = re.compile('|'.join(exps))
for d in data:
    if bool(p.search(d.lower())):
        print(d)

Answered By: jvx8ss

Identifying different date patterns in python list

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