From 5571a7dc4dd8d817f7369142bc0624fbe3d9c635 Mon Sep 17 00:00:00 2001
From: Philipp A <flying-sheep@web.de>
Date: Tue, 11 Jul 2023 18:53:24 +0200
Subject: [PATCH 1/4] Switch to packaging

---
 nodeenv.py | 10 +++++-----
 setup.py   |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/nodeenv.py b/nodeenv.py
index 043766d..e471037 100644
--- a/nodeenv.py
+++ b/nodeenv.py
@@ -45,7 +45,7 @@
     import http
     IncompleteRead = http.client.IncompleteRead
 
-from pkg_resources import parse_version
+from packaging import version
 
 nodeenv_version = '1.8.0'
 
@@ -177,9 +177,9 @@ def node_version_from_args(args):
     if args.node == 'system':
         out, err = subprocess.Popen(
             ["node", "--version"], stdout=subprocess.PIPE).communicate()
-        return parse_version(clear_output(out).replace('v', ''))
+        return version.parse(clear_output(out).replace('v', ''))
 
-    return parse_version(args.node)
+    return version.parse(args.node)
 
 
 def create_logger():
@@ -520,7 +520,7 @@ def callit(cmd, show_stdout=True, in_shell=False,
 
 
 def get_root_url(version):
-    if parse_version(version) > parse_version("0.5.0"):
+    if version.parse(version) > version.parse("0.5.0"):
         return '%s/v%s/' % (src_base_url, version)
     else:
         return src_base_url
@@ -1004,7 +1004,7 @@ def create_environment(env_dir, args):
     # before npm install, npm use activate
     # for install
     install_activate(env_dir, args)
-    if node_version_from_args(args) < parse_version("0.6.3") or args.with_npm:
+    if node_version_from_args(args) < version.parse("0.6.3") or args.with_npm:
         instfunc = install_npm_win if is_WIN or is_CYGWIN else install_npm
         instfunc(env_dir, src_dir, args)
     if args.requirements:
diff --git a/setup.py b/setup.py
index c755cfd..aa4dcaf 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ def read_file(file_name):
     license='BSD',
     author='Eugene Kalinin',
     author_email='e.v.kalinin@gmail.com',
-    install_requires=['setuptools'],
+    install_requires=['packaging'],
     python_requires=(
         ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*"
     ),

From 5746867395d8165ffb91449eac882ceec9ae46bd Mon Sep 17 00:00:00 2001
From: Philipp A <flying-sheep@web.de>
Date: Sat, 29 Jul 2023 15:20:10 +0200
Subject: [PATCH 2/4] install package

---
 .github/workflows/main.yml | 6 ++++--
 pyproject.toml             | 3 +++
 2 files changed, 7 insertions(+), 2 deletions(-)
 create mode 100644 pyproject.toml

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2ec31b5..cbe60e4 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -31,8 +31,10 @@ jobs:
 
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip setuptools wheel
-        python -m pip install --upgrade tox
+        # build and test dependencies
+        python -m pip install --upgrade pip wheel tox
+        # runtime dependencies
+        python -m pip install -e .
 
     - name: Run tox targets for ${{ matrix.python-version }}
       run: |
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..8fd8d67
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,3 @@
+[build-system]
+requires = ["setuptools", "setuptools-scm"]
+build-backend = "setuptools.build_meta"

From 64c66a33bf6681ab49f7ddeeaba05f7a5fd5349e Mon Sep 17 00:00:00 2001
From: Philipp A <flying-sheep@web.de>
Date: Fri, 11 Aug 2023 15:59:08 +0200
Subject: [PATCH 3/4] fix

---
 nodeenv.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/nodeenv.py b/nodeenv.py
index e471037..f0cabac 100644
--- a/nodeenv.py
+++ b/nodeenv.py
@@ -519,9 +519,9 @@ def callit(cmd, show_stdout=True, in_shell=False,
     return proc.returncode, all_output
 
 
-def get_root_url(version):
-    if version.parse(version) > version.parse("0.5.0"):
-        return '%s/v%s/' % (src_base_url, version)
+def get_root_url(version_str):
+    if version.parse(version_str) > version.parse("0.5.0"):
+        return '%s/v%s/' % (src_base_url, version_str)
     else:
         return src_base_url
 

From 52a429b84806a40d3b861db0b73c2f67023bda35 Mon Sep 17 00:00:00 2001
From: Philipp A <flying-sheep@web.de>
Date: Mon, 14 Aug 2023 09:26:45 +0200
Subject: [PATCH 4/4] support isolated builds

---
 setup.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index aa4dcaf..e02793a 100644
--- a/setup.py
+++ b/setup.py
@@ -7,10 +7,14 @@
 """
 import codecs
 import os
+import sys
 
-from nodeenv import nodeenv_version
 from setuptools import setup
 
+sys.path.insert(0, '.')
+
+from nodeenv import nodeenv_version
+
 
 def read_file(file_name):
     return codecs.open(