TypeError & Library mismatch

[HyperDevil]

Hi,

I am trying to run snmp_exporter on Ubuntu 16.04 LTS and running into several issues.

First issue:

Exception happened during processing of request from ('****_', 55329)
Traceback (most recent call last):
File "/usr/lib/python3.5/socketserver.py", line 600, in process_request
self.finish_request(request, client_address)
File "/usr/lib/python3.5/socketserver.py", line 354, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/http.py", line 70, in
handler = lambda *args, *_kwargs: SnmpExporterHandler(config_path, _args, *_kwargs)
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/http.py", line 25, in init
BaseHTTPRequestHandler.init(self, _args, *_kwargs)
File "/usr/lib/python3.5/socketserver.py", line 681, in init
self.handle()
File "/usr/lib/python3.5/http/server.py", line 422, in handle
self.handle_one_request()
File "/usr/lib/python3.5/http/server.py", line 410, in handle_one_request
method()
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/http.py", line 64, in do_GET
""")
File "/usr/lib/python3.5/socket.py", line 593, in write
return self._sock.send(b)
TypeError: a bytes-like object is required, not 'str'

Which means that in file http.py the self.wfile.write() functions need to be rewritten so that the variables will be byte encoded using for example: self.wfile.write(traceback.format_exc().encode(encoding='utf_8')) on line 54.

Second issue

sudo pip3 install netsnmp-py

Error:

Traceback (most recent call last):
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/http.py", line 46, in do_GET
output = collect_snmp(config[module], params['address'][0])
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/collector.py", line 120, in collect_snmp
for oid, value in values:
File "/usr/local/lib/python3.5/dist-packages/snmp_exporter/collector.py", line 23, in walk_oids
session = netsnmp.Session(Version=2, DestHost=host, RemotePort=port,
AttributeError: module 'netsnmp' has no attribute 'Session'

And the error is correct, netsnmp-py does not have a function called session.
It could be the wrong library, there is no other library i can find in PIP that has netsnmp in the name.
The netsnmp-python package in ubuntu 16.04 LTS is only for python 2.7.

At the moment i cannot use snmp_exporter.

[brian-brazil]

The snmp exporter is not known to work with Python3, though someone has been submitting patches.

Per the README the netsnmp you need isn't on pip, it's an OS-level package.

It is expected that this will all be ported to Go in the near future so all this will go away.

[HyperDevil]

Aha i did not know that.
I also tried running SNMP_exporter on Python 2.7 which also failed. (on ubuntu 16.04 LTS)
Which version of python is this written for?

[brian-brazil]

It should work on 2.7, and it's known to work on 14.04.

[brian-brazil]

The snmp exporter is now in Go.