Moved the metadata into PEP 621-compliant pyproject.toml.

aioarping/__main__.py

@@ -23,7 +23,10 @@
 # WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
 # IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE
 
-import subprocess, asyncio, aioarping, ipaddress
+import asyncio, aioarping, ipaddress
+
+
+from .utils import get_interface_and_network
 
 
 def my_process(data):
@@ -33,15 +36,7 @@ def my_process(data):
 
 
 event_loop = asyncio.get_event_loop()
-mydomain = [
-    x
-    for x in subprocess.getoutput(
-        "ip route|sed '/via/d' |sed '/docker/d'|sed '/linkdown/d'|sed '/src /!d' | sed '/dev /!d' |sed '2,$d'"
-    ).split(" ")
-    if x
-]
-myiface = mydomain[2]
-mydomain = mydomain[0]
+myiface, mydomain = get_interface_and_network()
 
 # First create and configure a raw socket
 mysocket = aioarping.create_raw_socket(myiface)

aioarping/utils.py

@@ -0,0 +1,39 @@
+def prefilter_route_lines(lines):
+    """https://github.com/brandonmpace/routeparser/issues/2"""
+
+    for el in lines:
+        if "linkdown" in el:
+            continue
+        if "src" not in el:
+            continue
+        yield el
+
+
+def post_filter_routes(routes):
+    for r in routes:
+        if "docker" in r.interface:
+            continue
+        if r.gateway is not None:
+            continue
+        yield r
+
+
+def get_ip_route_lines():
+    import subprocess
+
+    return subprocess.getoutput("/usr/sbin/ip route").splitlines()
+
+
+def get_needed_routes():
+    import routeparser
+
+    routeLines = list(prefilter_route_lines(get_ip_route_lines()))
+    t = routeparser.RoutingTable.from_ip_route_lines(routeLines)
+    return post_filter_routes(t.routes)
+
+
+def get_interface_and_network():
+    r = next(iter(get_needed_routes()))
+    ifc = r.interface
+    domain = r.network
+    return ifc, domain

pyproject.toml

@@ -0,0 +1,28 @@
+[build-system]
+requires = ["setuptools>=61.2.0", "wheel", "setuptools_scm[toml]>=3.4.3"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "aioarping"
+authors = [{name = "François Wautier", email = "francois@wautier.eu"}]
+license = {text = "MIT"}
+description = "API for arping over a LAN with asyncio."
+readme = "README.md"
+keywords = ["arp", "mac address", "presence", "automation"]
+classifiers = [
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.5",
+]
+urls = {Homepage = "http://github.com/frawau/aioarping"}
+dependencies = ["ipaddress"]
+dynamic = ["version"]
+
+[project.optional-dependencies]
+utils = ["routeparser"]
+cli = ["aioarping[utils]"]
+
+[tool.setuptools]
+packages = ["aioarping"]
+
+[tool.setuptools_scm]