unable to match regex pattern in python [closed] - python

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I am trying to match a regex from an email. If the e-mail says "need update on SRT1000" the regex needs to match. I have my code as below, but it is not working. Can someone look at this and let me know what is wrong here?
def status_update_regex(email):
email = email.lower()
need_sr_update_regex = re.compile('(looking|want|need|seek|seeking|request|requesting)([^/./!/?/,/"]{0,10})(status|update)(^.{0,6})(^srt[0-9]{4})')
if need_sr_update_regex.search(email) != None:
return 1
else:
return 0

You didn't put whitespace \s between words.
You don't have the on string
(looking|want|need|seek|seeking|request|requesting)([\s^.!?,"]{0,10})(status|update)([\s^.]{0,6})(on)([\s^.]{0,6})(srt[0-9]{4})
The best tip I can give to anyone attempting regex matching is to test their solution using https://rubular.com/

Don't put the ^ in the groups, it's trying to match the beginning. Also the extra / are unnecessary.
'(looking|want|need|seek|seeking|request|requesting)([^/.!?,"]{0,10}(status|update)(.{0,6})(srt[0-9]{4})'

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Validate an email in Python/Django [closed]

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I'm receiving an email from a http request and I need to validate it. The email filed should have the format: "example#domain.com". The email nmame con contain special characters like [~, !, #, $, %, ^, &, *, _], but may not contain [#, (, ), .]. The email domain and subdomain should not contain special characters.
I'm trying to solve this with regular expressions but I don't have so much experience with this topic.
import re
req = r'\b[A-Za-z0-9._%+-]+#[A-Za-z0-9.-]+\.[A-Z|a-z]{2,7}\b'
if(re.fullmatch(req, email)):
#validemail
else:
#invalidemail

Python: how to extract the variables between 2 constant substring [closed]

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I am trying to extract the variables between 2 constant substring in a string. For example,
I wish to extract the variable Apple, Orange, Watermelon, Kiwi....13cups, 14cups...19cups. I am using the re expression to get to the first step of taking the variable between $ sign but I do not get anything results.
Anyone can advise on the correct expression or if there is a better way to extract it ?
Thanks.
import re
file = '$n$n$n$xa0$n$nSHOWALL$nSHOWALL%GROWTH$n$n$xa0$n$xa0$n$n$n$nApple$na$nOrange$n$nWatermelon$nKiwi$n$nBanana$nJackfruit$n$nGuava$na$nGrape$n$nPlum$na$nOrange$n$nCoconut$nWatermelon$n$n12cups$n13cups$n$n14cups$na$n15cups$n$n16cups$na$n17cups$n$n18cups$n19cups$n'
found = re.findall(r'(?=$(.*?)$)',file)
print(found)
Given that the rule(s) for identifying the required character sequences is ambiguous, I contend that RE is impractical. No doubt it could be done but here's a quick'n'dirty approach to the problem:-
data = '$n$n$n$xa0$n$nSHOWALL$nSHOWALL%GROWTH$n$n$xa0$n$xa0$n$n$n$nApple$na$nOrange$n$nWatermelon$nKiwi$n$nBanana$nJackfruit$n$nGuava$na$nGrape$n$nPlum$na$nOrange$n$nCoconut$nWatermelon$n$n12cups$n13cups$n$n14cups$na$n15cups$n$n16cups$na$n17cups$n$n18cups$n19cups$n'
for token in data.split('$n'):
if token not in ('SHOWALL%GROWTH', 'SHOWALL', '$xa0', 'a', ''):
print(token)

negative lookbehind not working as expected [closed]

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I have strings of this form:
FPLBX(2x3)ZE(53x13)(4x7)ZGQO
I want to find the blocks in parenthesis but only when they're not preceded by another group.
The other way around works perfectly fine but I can't make it work with preceding.
current regex:
(\(\d*x\d*\))(?<!\))
You simply need to put the so-called negative lookbehind assertion, i.e. the (?<!\))-part, in front of your search re:
>>> import re
>>> txt = "FPLBX(2x3)ZE(53x13)(4x7)ZGQO"
>>> re.findall(r"(?<!\))(\(\d*x\d*\))", txt)
['(2x3)', '(53x13)']

How to extract groups contains desired string from between quotes using regex? [closed]

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I would like to extract some strings from between quotes using regular expression. The text is shown below:
CCKeyUpDomReady('test.asmx/asdasd', 'QMlPJZTOH09XOPCcbB2jcg==', '0OO6h+G2Tzhr5XWj1Upg0A==', '0OO6h+G2Tzhr5XWj1Upg0A==', '/qqwweq2.asmx/qqq')
Expected result must be:
test.asmx/asdasd
/qqwweq2.asmx/qqq
How can I do it? Here is the platform for testing:
https://regexr.com/3n142
The criteria: string which is between quotes must contains "asmx" word. The text is much more than showed above. You can think like that you are searching asmx urls in a website source code.
See regex in use here
'((?:[^'\\]|\\.)*asmx(?:[^'\\]|\\.)*)'
' Match this literally
((?:[^'\\]|\\.)*asmx(?:[^'\\]|\\.)*) Capture the following into capture group 1
(?:[^'\\]|\\.)* This is a beautiful trick gathered from PhiLho's answer to Regex for quoted string with escaping quotes. It matches escaped ' or any other character.
asmx The OP's search string/criterion
(?:[^'\\]|\\.)* This again
' Match this literally
The result is in capture group:
test.asmx/asdasd
/qqwweq2.asmx/qqq

How to extract integers from a random string without using regex? [closed]

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Say I have an arbitrary string like
"abc 123 def 456"
How would I take out the integers so that it can print "123456" without using regex?
for your specific question, you can just use .isdigit()
s = "abc 123 def 456"
for ch in s:
if ch.isdigit():
print(ch, end='')
print()

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