From 9df002e57ee8436bab2ef6f32d665ace56bbbb86 Mon Sep 17 00:00:00 2001
From: "Viktor A. Rozenko Voitenko" <sharp.vik@gmail.com>
Date: Sat, 8 Apr 2023 01:02:54 -0400
Subject: [PATCH] feat(setuptools): add find_requirements function

find_requirements utility function is supposed to simplify integration
between `pipenv` and `setup.py` scripts. Instead of synchronizing them
manually, users could just

```python
# file: setup.py

from setuptools import setup, find_packages
from pipenv.setuptools import find_requirements

setup(
    name="very-nice-package",
    version="0.1.0",
    author="John Doe",
    description="The Nicest Package",
    url="https://example.com/very-nice-package",
    python_requires=">=3.9, <4",
    packages=find_packages(),
    install_requires=find_requirements(),
)
```

This would fetch requirements from Pipfile.lock every time they run

```bash
pip install .
```
---
 pipenv/setuptools.py | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 pipenv/setuptools.py

diff --git a/pipenv/setuptools.py b/pipenv/setuptools.py
new file mode 100644
index 0000000000..9a4329f933
--- /dev/null
+++ b/pipenv/setuptools.py
@@ -0,0 +1,7 @@
+import json
+
+
+def find_requirements(lockfile_path: str = "Pipfile.lock"):
+    with open(lockfile_path) as lockfile:
+        requirements: dict[str, dict] = json.load(lockfile)["default"]
+        return [name + info["version"] for name, info in requirements.items()]