zxcv.py

scores = {"cvss1":1.2}

data = [
        {
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00042.html",
          "name": "openSUSE-SU-2019:1906",
          "refsource": "SUSE",
          "tags": [

          ]
        },
        {
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html",
          "name": "openSUSE-SU-2020:0086",
          "refsource": "SUSE",
          "tags": [

          ]
        },
        {
          "url": "https://access.redhat.com/errata/RHSA-2019:1587",
          "name": "RHSA-2019:1587",
          "refsource": "REDHAT",
          "tags": [

          ]
        },
        {
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10160",
          "name": "CVE-2019-10160",
          "refsource": "NVD",
          "tags": [
          ]

        },
    ]

references = []
for ref in data :
    references.append(Reference(url=ref["url"],ref_id=ref["name"], source=ref["refsource"]))

# At importer_runner.py
current_source = "NVD"
obtained_scores_from_nvd_for_CVE_2019_10160 = {"cvss1":1.2}
for ref in references : 
    ref_obj = ref.save()
    if ref.source == current_source : 
        for scores in obtained_scores_from_nvd_for_CVE_2019_10160.items() : 
            Score.objects.create(score_type=scores[0], score_value=scores[1], reference=ref_obj)

Yes that's something like this.
Though I would likely avoid

        for scores in obtained_scores_from_nvd_for_CVE_2019_10160.items() : 
            Score.objects.create(score_type=scores[0], score_value=scores[1], reference=ref_obj)

and prefer:

        for score_type, score_value in obtained_scores_from_nvd_for_CVE_2019_10160.items() : 
            Score.objects.create(score_type=score_type, score_value=score_value, reference=ref_obj)