Eikon Python API - excel 'GRLS' function for annualized growth rate for share

steffen.fuchs

Hi,

is there a way to retrieve the value for the excel api's GRLS function for a time span?

Many thanks,

Steffen

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datastream-api

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dsws-api

Accepted answers

Alex Putkov.1

I assume you're asking about the equivalent to the following Excel formula that uses Datastream add-in

=DSGRID("U:TRI","GRLS#(X,2Y)","Latest Value")

If this is what you're looking to replicate in Python, then you need to use Datastream Web Service API.
Here's an example Python code that implements the equivalent to the above request

import PyDSWS
import datetime as dt
ds = PyDSWS.Datastream('your Datastream Child ID', 'your Datastream password')
ds.get_data('U:TRI', ['GRLS#(X,2Y)'], date=dt.date.today())

All comments

Alex Putkov.1

I assume you're asking about the equivalent to the following Excel formula that uses Datastream add-in

=DSGRID("U:TRI","GRLS#(X,2Y)","Latest Value")

If this is what you're looking to replicate in Python, then you need to use Datastream Web Service API.
Here's an example Python code that implements the equivalent to the above request

import PyDSWS
import datetime as dt
ds = PyDSWS.Datastream('your Datastream Child ID', 'your Datastream password')
ds.get_data('U:TRI', ['GRLS#(X,2Y)'], date=dt.date.today())

steffen.fuchs

Thanks Alex.

When trying to connect to DSWS, I get the following error when executing line "ds = PyDSWS("....

ConnectionError: HTTPConnectionPool(host='product.datastream.com', port=80): Max retries exceeded with url:

/DSWSClient/V1/DSService.svc/rest/Token?username=***&password=***

(Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x000000000C274C18>: Failed to establish a new connection: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond'))

Alex Putkov.1

@steffen.fuchs
I think it's likely due to your Internet proxy. Try explicitly specifying the proxy as suggested on this thread discussing similar issue.

steffen.fuchs

works. Thanks, Alex

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