Code Coach: More Metacharacters (Python - RegEx) - Solution is incomplete

Question

Hi, since there is no button to report incorrect solutions in CodeCoach, I will post this as a topic of discussion.

In short: The regular expression r"\w*[A-Z]\w*[0-9]\w*" given in the model solution does not fit if the user decides to create a password where the number precedes the capital letter, e.g. "jskjf2klsjdDlk".

You can use my playground code to see for yourself:
https://www.sololearn.com/compiler-playground/ceKj74ci8AAX

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Here is the task description: (copied)

More Metacharacters

Let's imagine we are creating our own authentication system.
Create a program that takes a password as input and returns "Password created" if
- it has at least one uppercase character
- it has at least one number

The Program should output "Wrong format" if requirements above are not met.

Sample Input
Hal44gb8

Sample Output
Password created

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This is the given solution (Excuse me, if there are any typos, I could not copy it)

import re
password = input()
pattern = r"\w*[A-Z]\w*[0-9]\w*"
if re.match(pattern, password):
print("Password created")
else:
print("Wrong format")

Answer 1

couscous ,

we had a discussion about the same task, have a look on it:

Jayakrishna🇮🇳 has made a good explanation about how the regex pattern should be.

Ani Jona has also made a suggestion that should work: pattern = r"[A-Z].*\d|\d.*[A-Z]"

https://www.sololearn.com/Discuss/3083841/?ref=app

Answer 2

Jayakrishna🇮🇳 ,

it is python core, lessen 86.2

Answer 3

Lothar Jayakrishna🇮🇳
The issue is NOT about which regex passes the test cases but about the TASK DESCRIPTION.

The task description states 2 criteria. It is unclear form the text if the criteria must be met in exact that order of if the order does not matter.

From the model solution and the test cases it may be inferred that the only the order "letter-digit" is required.

Answer 4

We cannot see what you wrote in the code tab. You would need to save it in a script on sololearn playground and link it here.

I agree that the task description is mistakable: It could be understood that the 2 criteria may be met in arbitrary order, however the test cases only seem to test them as if they were ordered.
https://code.sololearn.com/crSQq2Oj51mL/?ref=app

Answer 5

@Lother OP have solution already...
But couscous which code coach are about? Can you add link..?
One I know is, asks write solution by regex by us. But there is no model solution.

Answer 6

Thank you all! That answers my question!