Not compatible with Python 3.14

[SnoopJ]

flake8-future-import uses ast.Str which has been removed in Python 3.14.

click for example failure stack trace

Traceback (most recent call last):
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/plugins/finder.py", line 291, in _load_plugin
    obj = plugin.entry_point.load()
  File "/home/jgerity/.pyenv/versions/3.14.0rc1/lib/python3.14/importlib/metadata/__init__.py", line 179, in load
    module = import_module(match.group('module'))
  File "/home/jgerity/.pyenv/versions/3.14.0rc1/lib/python3.14/importlib/__init__.py", line 88, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1398, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1371, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1342, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 938, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 762, in exec_module
  File "<frozen importlib._bootstrap>", line 491, in _call_with_frames_removed
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8_future_import.py", line 17, in <module>
    from ast import NodeVisitor, Str, Module, parse
ImportError: cannot import name 'Str' from 'ast' (/home/jgerity/.pyenv/versions/3.14.0rc1/lib/python3.14/ast.py)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/bin/flake8", line 8, in <module>
    sys.exit(main())
             ~~~~^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/main/cli.py", line 23, in main
    app.run(argv)
    ~~~~~~~^^^^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/main/application.py", line 198, in run
    self._run(argv)
    ~~~~~~~~~^^^^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/main/application.py", line 186, in _run
    self.initialize(argv)
    ~~~~~~~~~~~~~~~^^^^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/main/application.py", line 165, in initialize
    self.plugins, self.options = parse_args(argv)
                                 ~~~~~~~~~~^^^^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/options/parse_args.py", line 42, in parse_args
    plugins = finder.load_plugins(raw_plugins, plugin_opts)
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/plugins/finder.py", line 365, in load_plugins
    return _classify_plugins(_import_plugins(plugins, opts), opts)
                             ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/plugins/finder.py", line 307, in _import_plugins
    return [_load_plugin(p) for p in plugins]
            ~~~~~~~~~~~~^^^
  File "/media/nas/repos/sopel.git/3.14.0rc1_venv/lib/python3.14/site-packages/flake8/plugins/finder.py", line 293, in _load_plugin
    raise FailedToLoadPlugin(plugin.package, e)
flake8.exceptions.FailedToLoadPlugin: Flake8 failed to load plugin "flake8-future-import" due to cannot import name 'Str' from 'ast' (/home/jgerity/.pyenv/versions/3.14.0rc1/lib/python3.14/ast.py).

Here is a patch that should resolve the issue:

diff --git a/flake8_future_import.py b/flake8_future_import.py
index 444b02c..269f3f0 100755
--- a/flake8_future_import.py
+++ b/flake8_future_import.py
@@ -14,7 +14,7 @@ try:
 except ImportError as e:
     argparse = e
 
-from ast import NodeVisitor, Str, Module, parse
+from ast import Constant, NodeVisitor, Module, parse
 
 __version__ = '0.4.7'
 
@@ -31,7 +31,7 @@ class FutureImportVisitor(NodeVisitor):
             self.future_imports += [node]
 
     def visit_Expr(self, node):
-        if not isinstance(node.value, Str) or node.value.col_offset != 0:
+        if not (isinstance(node.value, Constant) and isinstance(node.value.value, str)) or node.value.col_offset != 0:
             self._uses_code = True
 
     def generic_visit(self, node):