Problem updating the api ranking system with the Python API

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1

When using the p123api (rank_update() in Python) to update the api ranking system, the ranking system ends up with “NAs Negative” no matter what I set “rankingMethod” to. The function is sensitive to the value of the “rankingMethod” parameter in that it gives an error if I supply a value other than 2 or 4, it just gives “NAs Negative” for both 2 and 4.

2

Thanks for letting us know. I created a bug report for this issue.

3

@test_user can you tell me how you verified that? If I look at APIRankingSystem, it shows Neutral, which is what I set it to in the API.

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I am updating it with something like this, where rankingMethod= 4

    try:
        client = p123api.Client(api_id=apiId, api_key=apiKey) 

        rsFile = rsFilePath + RankFile
        f = open(rsFile, "r")
        nodes = f.read()
       
        data = {
            "type": "stock",
            "rankingMethod": rankingMethod, 
            "nodes": nodes

        }

        dict = client.rank_update(data)

If true, this is depressing news.
Tony

4

APIRankingSystem also shows as Neutral in the performance tab.

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5

Hi Tony,
In my tests, the rank_update endpoint is unable to change the ranking method setting of the ApiRankingSystem ranking system. Regardless of which setting I used in the rank_update endpoint script, it keeps the current rankingMethod setting in the ApiRankingSystem ranking system. I tried changing the setting to both negative and neutral using the website then changing it with the rank_update endpoint and it didnt get changed.

Other endpoints like rank_perf have their own rankingMethod parameter which will override the ApiRankingSystem ranking system setting, so hopefully that reduces the impact of this issue.

6

Thanks @danp. So you are saying that Rank_Update() will not override the APIRankingSystem default? The default setting within the RS will always be used.

Tony

7

Yes, I tried it several times and Rank_Update never changed the current setting for rankingMethod in the APIRankingSystem.

Just to be clear, I’m not sure ‘default’ is the right term. When a new ranking system is created in the site, the ‘default’ is negative. I am saying that whatever the current setting that appears when you look at your APIRankingSystem on the website cannot currently be changed using Rank_Update.

8

Thanks! I’m seeing the same behavior, this makes it easier to live with. It’d still be nice to have it fixed though. I don’t think the rolling screener has a NA-parameter to adjust, and now I’m going to have to check the “NA status” of the ApiRankingSystem regularly to make sure everything is ok.