From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Branch Vincent <branchevincent@gmail.com>
Date: Wed, 27 Dec 2023 22:17:27 -0800
Subject: [PATCH] drop six dependency

---
 anytree/exporter/dotexporter.py     | 4 +---
 anytree/exporter/mermaidexporter.py | 4 +---
 anytree/iterators/abstractiter.py   | 5 +----
 anytree/render.py                   | 3 ---
 pyproject.toml                      | 1 -
 tests/helper.py                     | 2 --
 tests/test_dotexport.py             | 5 ++++-
 tests/test_node_sep.py              | 2 --
 8 files changed, 7 insertions(+), 19 deletions(-)

diff --git a/anytree/exporter/dotexporter.py b/anytree/exporter/dotexporter.py
index 5e689271a55c..10425f7dbd55 100644
--- a/anytree/exporter/dotexporter.py
+++ b/anytree/exporter/dotexporter.py
@@ -6,8 +6,6 @@ from os import path, remove
 from subprocess import check_call
 from tempfile import NamedTemporaryFile
 
-import six
-
 from anytree import PreOrderIter
 
 _RE_ESC = re.compile(r'["\\]')
@@ -315,7 +313,7 @@ class DotExporter:
     @staticmethod
     def esc(value):
         """Escape Strings."""
-        return _RE_ESC.sub(lambda m: r"\%s" % m.group(0), six.text_type(value))
+        return _RE_ESC.sub(lambda m: r"\%s" % m.group(0), str(value))
 
 
 class UniqueDotExporter(DotExporter):
diff --git a/anytree/exporter/mermaidexporter.py b/anytree/exporter/mermaidexporter.py
index bfb725a8909e..17f1addd4fd9 100644
--- a/anytree/exporter/mermaidexporter.py
+++ b/anytree/exporter/mermaidexporter.py
@@ -2,8 +2,6 @@ import codecs
 import itertools
 import re
 
-import six
-
 from anytree import PreOrderIter
 
 _RE_ESC = re.compile(r'["\\]')
@@ -242,4 +240,4 @@ class MermaidExporter:
     @staticmethod
     def esc(value):
         """Escape Strings."""
-        return _RE_ESC.sub(lambda m: r"\%s" % m.group(0), six.text_type(value))
+        return _RE_ESC.sub(lambda m: r"\%s" % m.group(0), str(value))
diff --git a/anytree/iterators/abstractiter.py b/anytree/iterators/abstractiter.py
index 055cecdc6d8c..6b8b75e0d56f 100644
--- a/anytree/iterators/abstractiter.py
+++ b/anytree/iterators/abstractiter.py
@@ -1,7 +1,4 @@
-import six
-
-
-class AbstractIter(six.Iterator):
+class AbstractIter:
     # pylint: disable=R0205
     """
     Iterate over tree starting at `node`.
diff --git a/anytree/render.py b/anytree/render.py
index 8152c462eff2..7b38d8d742e8 100644
--- a/anytree/render.py
+++ b/anytree/render.py
@@ -11,8 +11,6 @@ Tree Rendering.
 
 import collections
 
-import six
-
 from .config import ASSERTIONS
 
 Row = collections.namedtuple("Row", ("pre", "fill", "node"))
@@ -146,7 +144,6 @@ class DoubleStyle(AbstractStyle):
         super(DoubleStyle, self).__init__("\u2551   ", "\u2560\u2550\u2550 ", "\u255a\u2550\u2550 ")
 
 
-@six.python_2_unicode_compatible
 class RenderTree:
     """
     Render tree starting at `node`.
diff --git a/pyproject.toml b/pyproject.toml
index d329ac9eb329..a937784327c5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,6 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = ">= 3.7.2, < 4"
-six = '*'
 
 [tool.poetry.group.test.dependencies]
 black = '^22.3.0'
diff --git a/tests/helper.py b/tests/helper.py
index 3e943a31ddc2..e112cdad6c39 100644
--- a/tests/helper.py
+++ b/tests/helper.py
@@ -1,8 +1,6 @@
 """Helper Methods for testing."""
 from contextlib import contextmanager
 
-import six
-
 
 def eq_(one, other):
     assert one == other, "{one} != {other}".format(one=one, other=other)
diff --git a/tests/test_dotexport.py b/tests/test_dotexport.py
index 9883e902e5c7..7061d1a762dc 100644
--- a/tests/test_dotexport.py
+++ b/tests/test_dotexport.py
@@ -1,7 +1,9 @@
 from filecmp import cmp
 from os import makedirs
 from os.path import dirname, exists, join
-from shutil import rmtree
+from shutil import rmtree, which
+
+import pytest
 
 from anytree import Node
 from anytree.dotexport import RenderTreeGraph
@@ -71,6 +73,7 @@ def test_tree2():
     assert cmp(join(GENPATH, "tree2.dot"), join(REFPATH, "tree2.dot"))
 
 
+@pytest.mark.skipif(which("dot") is None, reason="requires graphviz`s `dot` command")
 @with_setup(setup, teardown)
 def test_tree_png():
     """Tree to png."""
diff --git a/tests/test_node_sep.py b/tests/test_node_sep.py
index ecfe859a442f..f335348e4993 100644
--- a/tests/test_node_sep.py
+++ b/tests/test_node_sep.py
@@ -1,8 +1,6 @@
 # -*- coding: utf-8 -*-
 """Test custom node separator."""
 
-import six
-
 import anytree as at
 
 from .helper import assert_raises, eq_
