TypeError: can only concatenate str (not "NoneType") to str

[Mdleal]

Traceback (most recent call last): File "/usr/local/lib/python3.12/socketserver.py", line 692, in process_request_thread self.finish_request(request, client_address) File "/usr/local/lib/python3.12/socketserver.py", line 362, in finish_request self.RequestHandlerClass(request, client_address, self) File "/usr/local/lib/python3.12/socketserver.py", line 761, in __init__ self.handle() File "/usr/local/lib/python3.12/http/server.py", line 436, in handle self.handle_one_request() File "/usr/local/lib/python3.12/http/server.py", line 424, in handle_one_request � method() File "/app/meraki-api-exporter.py", line 245, in do_GET target = '{serial="' + host + \ ~~~~~~~~~~~~^~~~~~ TypeError: can only concatenate str (not "NoneType") to str

[TheHolm]

Any more details? it seems your network have some devices without Serial Number, which is strange.

[Corruptsector]

Hey, We are seeing this as well. It looks like in our case cellular gateways return no serial.

----------------------------------------                                                     
Exception occurred during processing of request from ('10.42.4.159', 55506)                  
Traceback (most recent call last):                                                           
  File "/usr/local/lib/python3.11/socketserver.py", line 691, in process_request_thread      
    self.finish_request(request, client_address)                                             
  File "/usr/local/lib/python3.11/socketserver.py", line 361, in finish_request              
    self.RequestHandlerClass(request, client_address, self)                                  
  File "/usr/local/lib/python3.11/socketserver.py", line 755, in __init__                    
    self.handle()                                                                            
  File "/usr/local/lib/python3.11/http/server.py", line 436, in handle                       
    self.handle_one_request()                                                                
  File "/usr/local/lib/python3.11/http/server.py", line 424, in handle_one_request           
    method()                                                                                 
  File "/app/meraki-api-exporter.py", line 195, in do_GET                                    
    target = '{serial="' + host + \                                                          
             ~~~~~~~~~~~~^~~~~~                                                              
TypeError: can only concatenate str (not "NoneType") to str                                  
----------------------------------------                                                     

output from dashboard.organizations.getOrganizationDevicesUplinksLossAndLatency

    {
        'networkId': None,
        'serial': None,
        'uplink': 'cellular',
        'ip': '8.8.8.8',
        'timeSeries': [
            {
                'ts': '2025-03-13T21:52:59Z',
                'lossPercent': 0.0,
                'latencyMs': 70.2
            },
            {
                'ts': '2025-03-13T21:53:59Z',
                'lossPercent': 0.0,
                'latencyMs': 60.7
            }
        ]
    }

You can add the below to skip the the loss and latency for the one with no serial

for host in host_stats.keys():
    if host != None:

[TheHolm]

Could you please submit pull request with the patch?

[TheHolm]

Thank you. Merged. Issue closed.