How to use websockify with python on windows or compiling websockify as windows executable (for more multiple client connection at a time)

Question

I'm trying to get the websockify 0.6.0 running on windows but without any luck,

I have tried python websockify.py 1501 10.0.0.141:1501 but its not good, getting errors , like that:

Traceback (most recent call last): File "websockify.py", line 1, in <module> run NameError: name 'run' is not defined

I also tried Compiling Websockify as Windows Executable , but this also didn't work I use the following command run.exe 1501 10.0.0.141:1501 and it looks promising at the beginning, outputting the following to the console:

WARNING: no 'resource' module, daemonizing is disabled WebSocket server settings: - Listen on :1501 - Flash security policy server - No SSL/TLS support (no cert file) - proxying from :1501 to 10.0.0.141:1501

but then after trying to connect using the following from the browser ws://localhost:1501

**it outputs the following error

Traceback (most recent call last): File "run", line 5, in <module> File "websockify\websocketproxy.pyc", line 419, in websockify_init File "websockify\websocket.pyc", line 1018, in start_server UnboundLocalError: local variable 'exc' referenced before assignment

---

Any idea on how to use the websockify on windows / or how to use the compiled websockify as windows executable ?

Answer 1

The easiest way to get websockify working on Windows is to use the Node.js version of websockify (in the other/js directory). It works perfectly out of the box, with no shenanigans required.

Answer 2

To address this, use the modified following commands for your example source, start from the beginning of each step and see if it helps:

• Firstly, install Portable Python 2.7
• You then need to modify the setup.py (It looks like this is why you are getting your first error, as you may not have defined run):

from setuptools import setup, find_packages
# add (line 2):
import py2exe

setup(name=name,
# add (line 10):
console=['run'],

• Ensure the above has executed correctly by inspecting setup.py and ensure it includes run.

  • In your local code, import the resources module to allow you to monitor, measure and control system resources utilized by your program

import resource

• Inspect your local variable exc and ensure you have assigned a value to it before calling it (I'm guessing you may have attributed a system variable to it, but python was unable to do so as you did not have resources imported, and as such it was not assigned). If you like, put up an example of your code in the comment to this response and I'll take a closer look at this part.

• Back to your source guide, navigate to the websockify folder in command prompt, then execute the following to compile websockify:

[Your path to Portable Python install]\App\python.exe setup.py py2exe --includes numpy

• You will now see in the websockify directory a new dir 'dist' which contains the compiled exe. An example provided is:

run.exe 5901 localhost:5900

There is also a guide here to run websockify as a Windows Service if this suits (again mentioned in your source).

----Further edit for more detail----

Open up the two files that seem to be giving you issues (websockify\websocketproxy.pyc and websockify\websocket.pyc and ensure that any reference to a variable called "exc" is referenced after it has been assigned a value (small chance of an issue if you have not yet modified these files.

I believe that your code is relying upon making and monitoring changes to the system resources (such as ports etc) and you are not allowing your code to have these permissions, so it needs the resources module. If you are calling run.exe from a program (what I called your local code) then you need to import resources at the top. If you are just straight up calling the run.exe program from a command line, then try making this new program and see if this helps. If not, send me the contents of your websockify folder and run.exe and I will take a look

# Program Name: goAndRun.py

# Code:

import sys, string, os, arcgisscripting, resource
os.chdir( 'C:\\[Path_to_the_dir_containing_run.exe]' )
os.system( '"C:\\[Path_to_the_dir_containing_run.exe]\run.exe, 5901 localhost:5900"' )

And then use the command:

python goAndRun.py

Not being in your environment, I cannot tell if this will execute exactly as I have written it. The last line may also be:

os.system( '"C:\\[Path_to_the_dir_containing_run.exe]\run.exe"', '5901 localhost:5900' )