Migrate from ``appdirs`` to ``platformdirs`` (#4887)

* Migrate from appdirs to platformdirs

Closes #4886

4 files changed, 13 insertions, 7 deletions

diff --git a/ChangeLog b/ChangeLog
index d2f9d99a0..49fc5d968 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -15,6 +15,12 @@ What's New in Pylint 2.10.2?
 ============================
 Release date: TBA
 
+..
+  Put bug fixes that should not wait for a new minor version here
+
+* We now use platformdirs instead of appdirs since the latter is not maintained.
+
+  Closes #4886
 
 
 What's New in Pylint 2.10.1?
diff --git a/pylint/config/__init__.py b/pylint/config/__init__.py
index c9a200315..8c85cc7fa 100644
--- a/pylint/config/__init__.py
+++ b/pylint/config/__init__.py
@@ -40,7 +40,7 @@ import pickle
 import sys
 from datetime import datetime
 
-import appdirs
+import platformdirs
 
 from pylint.config.configuration_mixin import ConfigurationMixIn
 from pylint.config.find_default_config_files import find_default_config_files
@@ -69,7 +69,7 @@ if "PYLINTHOME" in os.environ:
 elif USER_HOME == "~":
     PYLINT_HOME = ".pylint.d"
 else:
-    PYLINT_HOME = appdirs.user_cache_dir("pylint")
+    PYLINT_HOME = platformdirs.user_cache_dir("pylint")
     # The spam prevention is due to pylint being used in parallel by
     # pre-commit, and the message being spammy in this context
     # Also if you work with old version of pylint that recreate the
diff --git a/setup.cfg b/setup.cfg
index b04fcf1f2..bdf0a8743 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -42,7 +42,7 @@ project_urls =
 [options]
 packages = find:
 install_requires =
-    appdirs>=1.4.0
+    platformdirs>=2.0.0
     astroid>=2.7.2,<2.8 # (You should also upgrade requirements_test_min.txt)
     isort>=4.2.5,<6
     mccabe>=0.6,<0.7
@@ -75,7 +75,7 @@ markers =
 [isort]
 multi_line_output = 3
 line_length = 88
-known_third_party = appdirs, astroid, sphinx, isort, pytest, mccabe, six, toml
+known_third_party = platformdirs, astroid, sphinx, isort, pytest, mccabe, six, toml
 include_trailing_comma = True
 skip_glob = tests/functional/**,tests/input/**,tests/extensions/data/**,tests/regrtest_data/**,tests/data/**,astroid/**,venv/**
 src_paths = pylint
@@ -83,7 +83,7 @@ src_paths = pylint
 [mypy]
 scripts_are_modules = True
 
-[mypy-appdirs]
+[mypy-platformdirs]
 ignore_missing_imports = True
 
 [mypy-astroid.*]
diff --git a/tests/lint/unittest_lint.py b/tests/lint/unittest_lint.py
index 8c8a1c550..fee47c9cf 100644
--- a/tests/lint/unittest_lint.py
+++ b/tests/lint/unittest_lint.py
@@ -49,7 +49,7 @@ from os import chdir, getcwd
 from os.path import abspath, basename, dirname, isdir, join, sep
 from shutil import rmtree
 
-import appdirs
+import platformdirs
 import pytest
 
 from pylint import checkers, config, exceptions, interfaces, lint, testutils
@@ -635,7 +635,7 @@ def test_pylint_home():
     if uhome == "~":
         expected = ".pylint.d"
     else:
-        expected = appdirs.user_cache_dir("pylint")
+        expected = platformdirs.user_cache_dir("pylint")
     assert config.PYLINT_HOME == expected
 
     try: