how to input kwargs into bloomberg wrapper function

Question

I am referring to the following code posted on GitHub which creates a wrapper interface around the blpapi package to replicate Excel functionality of the popular functions: BDP, BDH, and BDS.

https://github.com/691175002/BLPInterface/blob/master/blp.py

for those familiar, I am interested in replicating the result of calling in Excel

=BDS("NHSLTOT Index","ECO_FUTURE_RELEASE_DATE_LIST","START_DT","20140901","END_DT","20170923")

The wrapper equivalent of this function is referred to as bulkRequest - and it works well without the START_DT and END_DT arguments, i.e.

blp.bulkRequest("NHSLTOT Index", "ECO_FUTURE_RELEASE_DATE_LIST")

returns a DataFrame, but I would like to include the date range as above, which i believe the module provides for via the *kwargs, but I am unable to get this to work correctly. it would seem to me that these should be input as a dictionary, i.e.

blp.bulkRequest("NHSLTOT Index", "ECO_FUTURE_RELEASE_DATE_LIST", elements={"START_DT":"20140901","END_DT":"20170923"})

but this returns an error. any guidance appreciated

What's the error you are getting from this? – mgilbert Sep 23 '17 at 23:47 — mgilbert, Sep 23 '17 at 23:47
NotFoundException: Sub-element '(null)' does not exist – laszlopanaflex Sep 23 '17 at 23:49 — laszlopanaflex, Sep 23 '17 at 23:49
Including a stack trace of the error would be helpful – mgilbert Sep 23 '17 at 23:53 — mgilbert, Sep 23 '17 at 23:53
Did you ever figure out a solution to this? – Alex F May 19 '20 at 22:03 — Alex F, May 19 '20 at 22:03

how to input kwargs into bloomberg wrapper function

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