unittest.assertRegex flagged as deprecated-method

[lordgordon]

Steps to reproduce

import unittest

class ExampleTestCase(unittest.TestCase):
    
    def test_regex(self):
        self.assertRegex("something", r".+")

Current behavior

pylint flags unittest.assertRegex as deprecated-method with Python 3.6.

Expected behavior

unittest.assertRegex is not deprecated in Python 3.6 and should not be flagged as deprecated. References:

• https://docs.python.org/3/library/unittest.html?highlight=assertregex#unittest.TestCase.assertRegex
• https://docs.python.org/3/library/unittest.html?highlight=assertregex#deprecated-aliases

pylint --version output

pylint 1.7.2,
astroid 1.5.3
Python 3.6.1 (default, Jun 29 2017, 01:17:46)
[GCC 4.2.1 Compatible FreeBSD Clang 3.8.0 (tags/RELEASE_380/final 262564)]

[PCManticore]

I cannot reproduce this using the same pylint version, so not sure what exactly is going on here. Can you paste the exact output you get from pylint?

[m-vdb]

@PCManticore I'm able to reproduce with Django==1.11.5 and pylint==1.7.4. In check.py

"""d"""
from django.test import TestCase


class MyTestCase(TestCase):
    """d"""
    def test_something(self):
        """d"""
        self.assertRegex('string', 'other string')

    def test_something_else(self):
        """d"""
        self.assertRaisesRegex(ValueError, lambda: 'stuff')

In your shell

$ pylint --rcfile=pylint.rc check.py
************* Module check
W:  9, 8: Using deprecated method assertRegex() (deprecated-method)
W: 13, 8: Using deprecated method assertRaisesRegex() (deprecated-method)

-------------------------------------------------------------------
Your code has been rated at 6.67/10 (previous run: 10.00/10, -3.33)

[m-vdb]

could it be because of that ?

[bors-ltd]

I ran into this issue as soon as I upgraded to Django 1.11, and a colleague too. Using pylint 1.8.1 and Python 3.5.

If I remove the block https://github.com/django/django/blob/1.11.5/django/test/testcases.py#L807-L811 the warnings disappear, letting think pylint would enter the if and record the aliases, even if the condition is false.

This change was indeed introduced in the 1.11 series django/django@b5f0b34

[m-vdb]

@PCManticore care to re-open?