Drop support for Python 3.6.

CHANGELOG.md

@@ -1,6 +1,7 @@
 # 2.9 (unreleased)
 * Use exit code 3 when dead code is found (whosayn, #319).
 * Simplify decorator names that are too hard to parse to "@" (Llandy3d and Jendrik Seipp, #284).
+* Drop support for Python 3.6 (Jendrik Seipp).
 
 # 2.8 (2023-08-10)
 

README.md

@@ -18,7 +18,7 @@ tool for higher code quality.
 * tested: tests itself and has complete test coverage
 * complements pyflakes and has the same output syntax
 * sorts unused classes and functions by size with `--sort-by-size`
-* supports Python \>= 3.6
+* supports Python \>= 3.7
 
 ## Installation
 
@@ -161,8 +161,6 @@ def foo(arg: Sequence):
     ...
 ```
 
-if you're using Python 3.7+.
-
 
 ## Configuration
 

pyproject.toml

@@ -5,7 +5,6 @@
 
 [tool.black]
 line-length = 79
-# target-version = ['py36', 'py37', 'py38']
 include = '\.pyi?$'
 exclude = '''
 /(

setup.py

@@ -38,7 +38,6 @@ def find_version(*parts):
         "License :: OSI Approved :: MIT License",
         "Programming Language :: Python",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
@@ -50,7 +49,7 @@ def find_version(*parts):
     ],
     install_requires=["toml"],
     entry_points={"console_scripts": ["vulture = vulture.core:main"]},
-    python_requires=">=3.6",
+    python_requires=">=3.7",
     packages=setuptools.find_packages(exclude=["tests"]),
     package_data={"vulture": ["whitelists/*.py"]},
 )

tests/test_conditions.py

@@ -1,5 +1,4 @@
 import ast
-import sys
 
 from vulture import utils
 
@@ -21,10 +20,6 @@ def test_false():
     check_condition("False", False)
     check_condition("None", False)
     check_condition("0", False)
-    # Only Python 3.0-3.6 allows addition and subtraction in ast.literal_eval.
-    # (see https://bugs.python.org/issue31778)
-    if (3, 0) <= sys.version_info < (3, 7):
-        check_condition("1 - 1", False)
 
 
 def test_empty():

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = cleanup, py{36,37,38,310,311}, style  # Skip py39 since it chokes on distutils.
+envlist = cleanup, py{37,38,310,311}, style  # Skip py39 since it chokes on distutils.
 skip_missing_interpreters = true
 
 # Erase old coverage results, then accumulate them during this tox run.
@@ -37,7 +37,7 @@ commands =
   # B028: use !r conversion flag
   # C408: unnecessary dict call
   flake8 --extend-ignore=B028,C408 setup.py tests/ vulture/
-  bash -c "pyupgrade --py36-plus `find dev/ tests/ vulture/ -name '*.py'` setup.py"
+  bash -c "pyupgrade --py37-plus `find dev/ tests/ vulture/ -name '*.py'` setup.py"
 
 [testenv:fix-style]
 basepython = python3
@@ -48,4 +48,4 @@ allowlist_externals =
   bash
 commands =
   black .
-  bash -c "pyupgrade --py36-plus --exit-zero `find dev/ tests/ vulture/ -name '*.py'` setup.py"
+  bash -c "pyupgrade --py37-plus --exit-zero `find dev/ tests/ vulture/ -name '*.py'` setup.py"