On Tue, 6 Sep 2016, guido giaume wrote:
 Dear group
 from a coupe of weeks - after updating my ubuntu 16 - I experienced
 very often significant delay while getting data from yahoo.
 Gretl windows "freeze" of if you prefere became grey for minutes (also
 dozens). 
 Before the same download was made in seconds, much more less than one
 minute.
 Here my code
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 # Apro un set di 100 giornate con
 nulldata 100
 # 5 rilevazioni settimanali che iniziano il 1 marzo 2016 e indico che è
 una serie temporale
 setobs 5 2016-06-01 --time-series
 # chiama la funzione yahoo_get
 include yahoo_get.gfn
 # scarico i titoli 
 loop foreach i A2A.MI ATL.MI AZM.MI BMED.MI BMPS.MI BP.MI BPE.MI  
     A=yahoo_full("$i")
 endloop
 Please note i cutted the titles list: they are normally more than 50
 and less 100, because i am interested in behaviour of the components of
 market indexes.
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 I dont know how to handle this situation because I'm not shure if
 a) there is a problem in my line, but I dont think: tests and others
 activities are ok. 
 b) there was an unsaid change in yahoo's download policy. Maybe they
 decided to slow down the data rate (IE reducing the band).
 c) Yahoo has some problems not yet solved. 
 d) May be, after upgrading, appened some modest conflict between the OS
 and yahoo_get;
 SO i ask if somebody can give me a suggestion how to handle this or if
 you too have experienced some strong delay in the next weeks. 
It must be something related to your machine. Your script runs just fine 
here (Linux Mint), it takes only a few seconds.
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   Riccardo (Jack) Lucchetti
   Dipartimento di Scienze Economiche e Sociali (DiSES)
   Università Politecnica delle Marche
   (formerly known as Università di Ancona)
   r.lucchetti(a)univpm.it
   
http://www2.econ.univpm.it/servizi/hpp/lucchetti
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