Manage Errors from resolving identifiers when using Lseg.data

Anass

hi

regarding get_data function under LSEG.data library, why it's not behaving as the same function under eikon library, i mean:

• we can store error message in a separate variable (data,err=ek.get_data(Instrument2,"TR.RICS"), that it's not possible inder lseg.data
• with eikon library, even an identifier is not recognised, the data frame is returned with na data (see below). But when using Lseg.data, it returns an error (lseg.data._errors.LDError: Unable to resolve all requested identifiers in ['BE6371086200'].)

       None  TR.RICS

0 BE6371086200 <NA>

Jirapongse

@Anass

Thank you for reaching out to us.

The LSEG Data Library for Python uses the Exception method to handle errors. Therefore, the application can use try/except to handle the exceptions. For example:

import pandas as pd
error = None 
df = pd.DataFrame() #Empty Dataframe
try:    
    df = ld.get_data(
        universe=['BE6371086200'], 
        fields=['TR.Revenue.date', 'TR.Revenue'],
        parameters = {'SDate':0, 'EDate':-3}
    )
except ld.errors.LDError as err:
    error = err

if error == None:
    display(df)
else:
    print(error)