Syntax for screener
Hi Team,
I use this formula in screener, now I am trying to replace the "HK" here with a pre-defined items.
Economic_Sector,err = ek.get_data('SCREEN(U(IN(Equity(active,public,primary))/*UNV:Public*/), IN(TR.ExchangeCountryCode,"HK"), CURN=USD)',
'TR.TRBCEconomicSector',
{'Sdate':start_date,'Scale':scale,'Curn':curn})
For example:
I set country_code='HK'
and put the country_code into the formula, like this:
Economic_Sector,err = ek.get_data('SCREEN(U(IN(Equity(active,public,primary))/*UNV:Public*/), IN(TR.ExchangeCountryCode, country_code ), CURN=USD)',
'TR.TRBCEconomicSector',
{'Sdate':start_date,'Scale':scale,'Curn':curn})
Do you have idea why it doesnt work and how should I correct this.
Here is the error message:
KeyError Traceback (most recent call last)
<ipython-input-24-b53aff9d8165> in <module>
9 Economic_Sector,err = ek.get_data('SCREEN(U(IN(Equity(active,public,primary))/*UNV:Public*/), IN(TR.ExchangeCountryCode,"country_code"), CURN=USD)',
10 'TR.TRBCEconomicSector',
---> 11 {'Sdate':start_date,'Scale':scale,'Curn':curn})
12 13 Economic_Sector
~\Anaconda3\lib\site-packages\refinitiv\dataplatform\legacy\data_grid.py in get_data(instruments, fields, parameters, field_name, raw_output, debug, raw_response)
206 return result
207 --> 208 return get_data_frame(result, field_name)
209 210
~\Anaconda3\lib\site-packages\refinitiv\dataplatform\legacy\data_grid.py in get_data_frame(data_dict, field_name)
255 headers = [header.get('field', header.get('displayName')) for header in data_dict['headers'][0]]
256 else:
--> 257 headers = [header['displayName'] for header in data_dict['headers'][0]]
258 data = numpy.array([[get_data_value(value) for value in row] for row in data_dict['data']])
259 if len(data):
KeyError: 'headers'
Thanks!
Best Answer
-
Hello @Danni.Qiu
You cannot mix the string 'SCREEN(U(IN(Equity(active,public,primary))/*UNV:Public*/), IN(TR.ExchangeCountryCode, country_code ), CURN=USD)' with the variable country_code like that. You need to concatenate the string to the country_code variable first like the following:
country_code='HK'
syntax = 'SCREEN(U(IN(Equity(active,public,primary))/*UNV:Public*/), IN(TR.ExchangeCountryCode, %s ), CURN=USD)'%(country_code)
Economic_Sector,err = ek.get_data(syntax,'TR.TRBCEconomicSector')There are many ways to concatenate string, please see more details in the following Python tutorial websites:
0
Answers
-
Thank you so much!0
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