Hello!
I am trying to use compas and ARA Machine Learning Plugin by
Gramazio Kohler Research Lab at ETH for Grasshopper.
I encountered this problem. Did I missed something in the installation or on the grasshopper canvas or why cant I connect to the server. Or is it simply not existing anymore?
The Error is: 1. Solution exception:URLError
The URL is: http://127.0.0.1:8765/shutdown
Heres also the code of the “Server” Component.
from future import absolute_import
from future import division
from future import print_function
import urllib2
import compas
import compas._os
from ghpythonlib.componentbase import executingcomponent as component
from scriptcontext import sticky as st
from aixd_ara.constants import DEFAULT_PORT
try:
from subprocess import PIPE
from subprocess import Popen
except ImportError:
from System.Diagnostics import Process
import os
import aixd_ara as ag
class ApiRunner(object):
def init(
self,
package=None,
python=None,
url=“http://127.0.0.1”,
port=DEFAULT_PORT,
service=None,
max_conn_attempts=100,
autoreload=True,
show_window=False,
path=None,
working_directory=None,
):
self.python = compas._os.select_python(python)
self.service = “aixd_ara.api”
self.working_directory = working_directory
self.show_window = show_window
self.port = port
self.start_process()
def start_process(self):
env = compas._os.prepare_environment()
try:
Popen
except NameError:
self._process = Process()
for name in env:
if self._process.StartInfo.EnvironmentVariables.ContainsKey(name):
self._process.StartInfo.EnvironmentVariables[name] = env[name]
else:
self._process.StartInfo.EnvironmentVariables.Add(name, env[name])
self._process.StartInfo.UseShellExecute = True
self._process.StartInfo.RedirectStandardOutput = not self.show_window
self._process.StartInfo.RedirectStandardError = not self.show_window
self._process.StartInfo.FileName = self.python
self._process.StartInfo.Arguments = "-m {0} {1}".format(self.service, self.port)
self._process.Start()
else:
args = [self.python, "-m", self.service, str(self.port)]
kwargs = dict(env=env)
if self.show_window:
if compas.is_mono():
python_command = " ".join(args)
apple_script = """
tell application "Terminal"
do script "{}"
activate
end tell
""".format(
python_command
)
args = ["osascript", "-e", apple_script]
else:
kwargs["stdout"] = PIPE
kwargs["stderr"] = PIPE
if self.working_directory:
kwargs["cwd"] = self.working_directory
self._process = Popen(args, **kwargs)
def stop_process(self):
"""Attempts to terminate the python process hosting the proxy server.
The process reference might not be present, e.g. in the case
of reusing an existing connection. In that case, this is a no-op.
"""
print("Stopping the server process.")
if not self._process:
return
try:
self._process.terminate()
except Exception:
pass
try:
self._process.kill()
except Exception:
pass
api_path = os.path.dirname(ag.file)
print(api_path)
def create_api_runner_id(component):
name = “api-runner”
return “{}_{}”.format(name, component.InstanceGuid)
class ApiRunnerComponent(component):
def RunScript(self, start, stop, show_window=True):
key = create_api_runner_id(self)
port = DEFAULT_PORT
if show_window:
python = "python"
else:
python = "pythonw"
if start:
self.stop(key)
runner = ApiRunner(python=python, port=port, show_window=show_window, working_directory=api_path)
st[key] = runner
if stop:
self.stop(key)
def stop(self, key):
# Attempt gracefully stopping the server
try:
urllib2.urlopen("http://127.0.0.1:8765/shutdown", timeout=1)
except Exception:
pass
# stop previous API runner if any
previous_api_runner = st.get(key)
if previous_api_runner:
try:
previous_api_runner.stop_process()
except Exception as e:
print("Unable to stop previous process")
print(e)
st.pop(key)
else:
print("No previous process runner found")
.