Added find_port.py

Author: stevej2608

Diff for: pages/not_found_404.py

@@ -14,7 +14,7 @@ def NotFoundPage():
                     html.img({'alt': '404 not found', 'class_name': 'img-fluid w-75', 'src': 'static/images/404.svg'}),
                     html.h1({'class_name': 'text-4xl font-bold mt-5'},"Page not found"),
                     html.p({'class_name': 'text-xl  m-5'}, "Oops! Looks like you followed a bad link. If you think this is a problem with us, please tell us."),
-                    link(ButtonWithIcon("Back to homepage", Icon_BackArrow), to='/products')
+                    link(ButtonWithIcon("Back to homepage", Icon_BackArrow), to='/')
                 )
             )
         )

Diff for: poetry.lock

@@ -13,7 +13,7 @@ fastapi = "0.96.0"
 uvicorn = "0.22.0"
 pydantic = " 1.10.13"
 reactpy-apexcharts = "0.0.9"
-reactpy-github-buttons = "0.0.11"
+reactpy-github-buttons = "0.0.12"
 reactpy-router = {url = "https://raw.githubusercontent.com/stevej2608/reactpy-router/master/dist/reactpy_router-0.1.1-py2.py3-none-any.whl"}
 
 [tool.poetry.group.dev.dependencies]

Diff for: pyproject.toml

@@ -1,7 +1,9 @@
 from pages.app_main import AppMain
 from fast_server import run
+from utils.find_port import find_available_port
 
 # python run_dashboard.py
 
 if __name__ == "__main__":
-    run(AppMain, disable_server_logs=True)
+    port = find_available_port()
+    run(AppMain, port=port, disable_server_logs=True)

Diff for: run_dashboard.py

@@ -0,0 +1,23 @@
+import socket
+import sys
+from contextlib import closing
+
+
+def find_available_port(host: str = 'localhost', port_min: int = 8000, port_max: int = 9000) -> int:
+    """Get a port that's available for the given host and port range"""
+    for port in range(port_min, port_max):
+        with closing(socket.socket()) as sock:
+            try:
+                if sys.platform in ("linux", "darwin"):
+                    # Fixes bug on Unix-like systems where every time you restart the
+                    # server you'll get a different port on Linux. This cannot be set
+                    # on Windows otherwise address will always be reused.
+                    # Ref: https://stackoverflow.com/a/19247688/3159288
+                    sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+                sock.bind((host, port))
+            except OSError:
+                pass
+            else:
+                return port
+    msg = f"Host {host!r} has no available port in range {port_max}-{port_max}"
+    raise RuntimeError(msg)