Python : Getting “OverflowError: repeated string is too long” when creating dictionary

Question

I'm trying to convert this line of code :

array_of_power1.append(dict(measurement=topic_mqtt_power1,timestamp=int(epoch_time_stamp * 1000000000),fields=dict(power=power1),tags=dict(MachineType=Machine_type,MachineName=Machine_name)))

into

array_of_power1.append({'measurement' : 'topic_mqtt_power1', 'timestamp' : 'epoch_time_stamp' * 1000000000, fields: {'power' : 'power1'}, tags: {MachineType : Machinetype, MachineName : Machine_name}})

and I'm getting

Traceback (most recent call last): File "", line 1, in OverflowError: repeated string is too long

The reason why I'm changing from the dict struct to the other method is that the dict struct "dict()" doesnt work in micropython.

by writing 'epoch_time_stamp' * 1000000000 you are writing epoch_time_stamp 1000000000 time, remove the * — Matteo Peluso
makes sense now, thanks! the second problem i have is its showing "NameError: name 'fields' is not defined"? — resolver101

Matteo Peluso Matteo Peluso · Accepted Answer · 2019-07-02T15:38:40

You should run something like this to avoid the error of OverflowError and NameError :

array_of_power1.append({'measurement' : 'topic_mqtt_power1', 
                        'timestamp' : 'epoch_time_stamp x 1000000000',
                        'fields': {'power' : 'power1'}, 
                        'tags': {MachineType : Machinetype, MachineName : Machine_name}})

Python : Getting “OverflowError: repeated string is too long” when creating dictionary

1 Answers