Raised Python supported floor to 3.9 because PySide6

CONTRIBUTING.md

@@ -85,7 +85,7 @@ Conda is best installed via [miniconda](https://docs.conda.io/en/latest/minicond
       ```
 
 ## Dependencies
-- Python 3.9
+- [Python 3.9](https://www.python.org/downloads/release/python-390/)
     - [Qt.py](https://github.com/mottosso/Qt.py)
     - [PySide6](https://doc.qt.io/qtforpython-6/gettingstarted.html)  
     - `pip install -e <path to nxt core clone>`

README.md

@@ -17,8 +17,8 @@ Only clone this repo if you're [contributing](CONTRIBUTING.md) to the NXT codeba
 <br>
 
 #### Requirements
-- Python >= [2.7.*](https://www.python.org/download/releases/2.7) <= [3.7.*](https://www.python.org/download/releases/3.7)
-- We strongly recommend using a Python [virtual environment](https://docs.python.org/3.7/tutorial/venv.html)
+- Python >= [3.9.*](https://www.python.org/downloads/release/python-390/)
+- We strongly recommend using a Python [virtual environment](https://docs.python.org/3/library/venv.html)
 
 *[Requirements for contributors](CONTRIBUTING.md#python-environment)*  
 

setup.py

@@ -28,7 +28,7 @@
     long_description_content_type="text/markdown",
     url="https://github.com/nxt-dev/nxt_editor",
     packages=setuptools.find_packages(),
-    python_requires='>=3.7, <3.12',
+    python_requires='>=3.9, <3.12',
     install_requires=['nxt-core<1.0,>=0.14',
                       'qt.py<3',
                       'PySide6>=6,<6.8'