BDS type of call

[ahmasoh1992]

Hey Guys,

If I want to do a BDS type of call, say:

=BDS("SPX Index","INDX_MWEIGHT_HIST", "END_DATE_OVERRIDE=20151231")

I assume it's along the lines of:

con.ref(["SPX Index"],"INDX_MWEIGHT_HIST", [("END_DATE_OVERRIDE","20150715")])

But this seems to throw up:
Traceback (most recent call last):
  File "<input>", line 1, in <module>
  File "...\Python27\site-packages\pdblp\pdblp.py", line 242, in ref
    ovrds, [])
  File "...\Python27\site-packages\pdblp\pdblp.py", line 125, in _create_req
    for ovrd_fld, ovrd_val in ovrds:
ValueError: need more than 1 value to unpack

Know what's going on?

[cedricyau]

Try a comma after the tuple.

[("END_DATE_OVERRIDE","20150715"), ] On Tue, Feb 13, 2018 at 10:52 AM ahmasoh1992 notifications@github.com wrote:

Hey Guys,

If I want to do a BDS type of call, say:

=BDS("SPX Index","INDX_MWEIGHT_HIST", "END_DATE_OVERRIDE=20151231")

I assume it's along the lines of:

con.ref(["SPX Index"],"INDX_MWEIGHT_HIST", [("END_DATE_OVERRIDE","20150715")])

But this seems to throw up: Traceback (most recent call last): File "", line 1, in File "...\Python27\site-packages\pdblp\pdblp.py", line 242, in ref ovrds, []) File "...\Python27\site-packages\pdblp\pdblp.py", line 125, in _create_req for ovrd_fld, ovrd_val in ovrds: ValueError: need more than 1 value to unpack

Know what's going on?

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-- Cedric Yau cedricyau@gmail.com

[ahmasoh1992]

Wow thanks, why does that work? Is that a bug?

[matthewgilbert]

This is not a bug, the syntax for accessing the Bcon.ref (and the rest of pdblp) is not a direct translation of the excel syntax.