Duplicated timeseries in CollectorRegistry #921

Hello,
I am trying to make my metrics and write it inside one file using textfile_collector, but the problem is, that it tells me ''Duplicated timeseries in CollectorRegistry: {'htcondor_jobstatus'}'.

Here is the function:

def make_job_metrics():
    # works with mandatory structures 
    # JobsAd_metrics, JobsAd_labels, jobs, metrics
    registry = CollectorRegistry()
    for jobid in jobs:
      # print(type(jobid))
      if not isinstance(jobid, str):
          continue
      for metric in JobsAd_metrics:
        args_dict = {}
        for parameter in JobsAd_labels:
            args_dict[parameter] = jobs[jobid][parameter]
        metric_name = 'htcondor' + '_' + metric.lower()
        # print(metric_name)
        # print(args_dict)
        print(metric_name)
        args_list=[]
        for v in args_dict.items():
            args_list.append(v[1])
        if jobs[jobid][metric] == None:
            continue
        **g = Gauge(metric_name, 'metric_label', JobsAd_labels, registry=registry).labels(*args_list).set(jobs[jobid][metric])**
    write_to_textfile('/usr/local/bin/prometheus_custom_plugins/test.prom', registry)

Here is the command line output:
Traceback (most recent call last):
File "./htcondor_exporter.py", line 308, in
make_job_metrics()
File "./htcondor_exporter.py", line 147, in make_job_metrics
g = Gauge(metric_name, 'metric_label', JobsAd_labels, registry=registry).labels(*args_list).set(jobs[jobid][metric])
File "/usr/local/bin/prometheus_custom_plugins/htcenv/lib/python3.6/site-packages/prometheus_client/metrics.py", line 373, in init
_labelvalues=_labelvalues,
File "/usr/local/bin/prometheus_custom_plugins/htcenv/lib/python3.6/site-packages/prometheus_client/metrics.py", line 143, in init
registry.register(self)
File "/usr/local/bin/prometheus_custom_plugins/htcenv/lib/python3.6/site-packages/prometheus_client/registry.py", line 45, in register
duplicates))
ValueError: Duplicated timeseries in CollectorRegistry: {'htcondor_jobstatus'}

My question is: How to write many metrics with same names, but different labels and values inside one file using textfile collector?

• because it looks like, that in the case when I put inside registry next metric with the same name, it prints out this error.

Thank you for any responses
Lukáš Míča