How to search for inactive/matured corporate bonds via Data Library for Python (equivalent to GOVSRC

wangyijun

I'm using the lseg-data Python package (v2.1.1) to retrieve corporate bond data.

What works:

• ld.discovery.search(view=GOV_CORP_INSTRUMENTS, filter="IssuerName eq 'Apple'") returns active bonds (AssetState=AC)
• ld.get_data(universe=['US03785EPC20'], fields=['TR.FiOriginalYieldMaturity'], parameters={'CH': 'Fd', 'RH': 'IN'}) successfully returns data for a known matured bond ISIN

What I need:I need to search for bonds that have already matured or been decommissioned (AssetState=DC or inactive), not just retrieve data for known ISINs. In the Workspace terminal, the GOVSRCH app supports "Status → Include: Inactive (only)".

Question:What is the equivalent API approach? Specifically:

1. Can ld.discovery.search() return inactive bonds with a different view or filter (e.g., AssetState eq 'DC')?
2. Is there a screener formula for ld.get_data() that includes inactive fixed-income instruments?
3. Alternatively, can a GOVSRCH search result saved as a Workspace Saved List be referenced as a universe in the Python API?

Any working code example would be greatly appreciated. Thank you!

Jirapongse

@wangyijun

Thank you for reaching out to us.

1.The AssetStatus could be 'MAT' which represents "Expired/Matured".

ld.discovery.search(
    view=ld.discovery.Views.GOV_CORP_INSTRUMENTS, 
    filter="IssuerName eq 'Apple' and AssetStatus eq 'MAT'",
    select = "BusinessEntity,DocumentTitle,PermID,PI,RIC,AssetStatus,AssetStatusDescription,ISIN",
    top = 10000
) 

2.Please contact the helpdesk support team directly via LSEG Support for the screener formula.

3.As far as I know, the library can't access the results saved in the Workspace saved list. You can export the results as a file and then load it into Python.