Retrieving RDF from URIs Using Content Negotiation in Python

Overview I had an opportunity to retrieve RDF data from Wikidata entity URIs, so here are my notes. Without Content Negotiation First, make a request with empty headers as follows. i # u h } # r # i e m r e e f l p U l a S s C s o R d e p h r e r L = e n o e e t p : p t r d n c s e r r f " s i s k p x i i r o h n e i o t n n e r t = g n n t t q t = g s = ( ( u t p { a e t " e h : r i . r e F s e / G e f s e x a t / E q t s t i s W w T u t a p [ l i w e h t o : e k w r s e u n 5 d i . e t s s 0 d w q s r _ e 0 t a i u . e c . 0 o t k e g q o t ] a i s e u d e ) r d t t e e x e e a ( s t t n t t u t = r t a o r = i i . l w e t o t , a 2 v y r h s 0 e g e h 0 i / e s : R n e U a u D n R d c F R t L e c D i r e d F t s s a y = s t f h f a Q e u . r 1 a l m 2 d S a 4 e t t 1 r a 8 s t " ) u s c o d e : " , r e s p o n s e . s t a t u s _ c o d e ) In this case, you can retrieve text data in JSON format as follows. { " e n t i t i e s " : { " Q 1 2 4 1 8 " : { " p a g e i d " : 1 4 0 0 2 , " n s " : 0 , " t i t l e " : " Q 1 2 4 1 8 " , " l a s t r e v i d " : 2 1 7 6 3 4 3 9 5 2 , " m o d i f i e d " : " 2 0 2 4 - 0 6 - 1 1 T 1 1 : 4 3 : 4 4 Z " , " t y p e " : " i t e m " , " i d " : " Q 1 2 4 1 8 " , " l a b e l s " : { " f r " : { " l a n g u a g e " : " f r " , " v a l u e " : " L a J o c o n d e " } , " e s " : { " l a n g u a g e " : " e s " , " v a l u e " : " L a G i o c o n d a " } , " e n " : { " l a n g u a g e " : " e n " , " v a l u e " : " M o n a L i s a " } , " a f " : { " l a n g u a g e " : " a f " , " v a l u e " : " M o n a L i s a " } , " a m " : { " l a n g u a g e " : " a m " , " v a l u e " : " \ u 1 2 1 e \ u 1 2 9 3 \ u 1 2 0 a \ u 1 2 d b " } , " a r " : However, the desired RDF data cannot be obtained this way. Using Content Negotiation Next, specify RDF/XML in the headers. i f # u # h } # r # i e m r r e e f l p o U l H a S s C s o m R e d e p h r e r L = a e ' n o e e t # t # t : p t l d r A d n c s r r r r x f " e s c i s k p e C e N e i r m o h r c n e i o e o e o e n e l r t s = e g n n n w . t q t p = g s = v = w ( u i t p t { t a e e y r " e m h : o ' r i . e r e o i F s p e / : G e f s t t t u t a t o / r E q t r r e i s r W w e ' T u t a e _ e c ( l t i w q a e h t e E e a " e k w u p r s e u . l . n o d e i . e p e t s f e E u t d w s l q s r _ r m l u t t r a i t i u . e c o e e s p o e t k c e g q o m n m e u e a i R a s e u d s t e t r d D t t t e e t n t . e e a F i ( s r t t h x t n t / o t u t = i o T e m r t a X n o r = n r l i i . M / l w g _ e w " e t o L r t , a 2 ( E e r , v y r d h s 0 r l ( i e g f f e h 0 e e t t p i / o + e s : s m r e r R n e r x U a u p e e e D n m m R d c o n e m t F R t a l L e c n t ) e t D i t ' r e s T t y d F t s s e r h _ a y = s . e o p t f h f c e d r a Q e u o i . r 1 a l n n m 2 d t t S a 4 e e = t t 1 r n T a 8 s t r t " ) ) u u e s , c x o m d l e _ : d " e , c l r a e r s a p t o i n o s n e = . T s r t u a e t , u s e _ n c c o o d d e i ) n g = ' U T F - 8 ' ) As a result, RDF data was successfully retrieved as follows. < < ? r < < x d r < < < < < < < < < / m f d r s c s s s w w w r l : f d c c c c c i i i d R : f h : h h h k k k f v D D : e l e e e i i i : e F e t m i m m m b b b D r s y a c a a a a a a e s x c p : e : : : s s s s i m r e a n s v d e e e c o l i b s o e a : : : r n n p r o e f r t s s i i = s t d u t s e t i d p ' : i f t r w i M a t e t 1 r o : d a o o t e n i . d n r r f r n d e l t o 0 f e d : e i m i i n ' = r s f r V r f e n f > " d o : e e d i n k i e h f u r s r f e t s e n t : r e o s : d s r c t a c s u i d r s o p b e o r o a r r d d : = u c n t d d f r i u " r e > a f f : d n / t h c = 1 t : : d f g w = t e " . y d d a : = w " t = h 0 p a a t d ' w h p " t . e t t a a U . t : h t 0 = a a t t T w t / t p w m w e m / h h t " 1 w a w a a / t t t h 9 w . w t : w t t p t 9 . o . i s w p p : t 9 w r w v o w : : p / i g i e f . / : 0 k / k c t w w / 2 i D i o w 3 w w w / / d a d m a . w w w w 2 a t a m r o w w . w 2 t a t o e r . . w w - a s a n V g w w 3 . r . e . s e / 3 3 . w d o t o . r 2 . . o 3 f r " r o s 0 o o r . - g g r i 0 r r g s / g 1 g g r y w e n / / 2 g n i n p > X 2 2 0 / t k t u M 0 0 0 2 a i i b L 0 0 1 0 x / t l S 1 1 0 - S y i c / X 1 n p / c h X X M / s e Q d e M M L X # c 1 o m L L S M " i 2 m a S S c L a 4 a # c c h S x l 1 i i h h e c m : 8 n n e e m h l E " t m m a e n n z e a a # m s t e g # # i a : i r e d i n # x t o r a n t i s y / " t t e n d D 1 > e e g t = a . 2 T g e e " t 0 1 i e r g h a / 7 m r " e t / " 6 e " > r t Q / 3 " > 1 " p 1 > 4 > 1 3 > : 2 3 2 4 8 6 / 4 9 0 1 / 0 i k i . s 6 k i k w c - i b i 3 h 1 b a b . e 1 a s a o m T s e s r a 1 e : e g : 1 : s : / v : s i i 2 e 4 t t d 0 r 3 a e e 0 s : t l n 1 i 4 e i t / o 4 m n i X n Z e k f M > e S s s r c c > s h h > e e m m a a # : " d a x t m e l M n o s d : i o f n i t e o d l > e x = " h t t p : / / w w w . w 3 . o r g / n s / l e m o n / o n t o l e x # " x m l n s : d c t = " h t t p : / / p u r l . o r g / d c / t e r m s / " x m l n s : r d f s = " h t t p : / / w w w . w 3 . o r g / 2 0 0 0 / 0 1 / r d f - s c h e m a # " x m l n s : o w l = " h t t p : / / w w w . w 3 . o r g / 2 0 0 2 / 0 7 / o w l # " x m l n s : w i k i b a s e = " h t t p : / / w i k i b a . s e / o n t o l o g y # " x m l n s : s k o s = " h t t p : / / w w w . w 3 . o r g / 2 0 0 4 / 0 2 / s k o s / c o r e # " x m l n s : s c h e m a = " h t t p : / / s c h e m a . o r g / " x m l n s : c c = " h t t p : / / c r e a t i v e c o m m o n s . o r g / n s # " x m l n s : g e o = " h t t p : / / w w w . o p e n g i s . n e t / o n t / g e o s p a r q l # " x m l n s : p r o v = " h t t p : / / w w w . w 3 . o r g / n s / p r o v # " x m l n s : w d = " h t t p : / / w w w . w i k i d a t a . o r g / e n t i t y / " x m l n s : d a t a = " h t t p s : / / w w w . w i k i d a t a . o r g / w i k i / S p e c i a l : E n t i t y D a t a / " x m l n s : s = " h t t p : / / w w w . w i k i d a t a . o r g / e n t i t y / s t a t e m e n t / " x m l n s : r e f = " h t t p : / / w w w . w i k i d a t a . o r g / r e f e r e n c e / " x m l n s : v = " h t t p : / / w w w . w i k i d a t a . o r g / v a l u e / " x m l n s : w d t = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / d i r e c t / " x m l n s : w d t n = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / d i r e c t - n o r m a l i z e d / " x m l n s : p = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / " x m l n s : p s = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / s t a t e m e n t / " x m l n s : p s v = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / s t a t e m e n t / v a l u e / " x m l n s : p s n = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / s t a t e m e n t / v a l u e - n o r m a l i z e d / " x m l n s : p q = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / q u a l i f i e r / " x m l n s : p q v = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / q u a l i f i e r / v a l u e / " x m l n s : p q n = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / q u a l i f i e r / v a l u e - n o r m a l i z e d / " x m l n s : p r = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / r e f e r e n c e / " x m l n s : p r v = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / r e f e r e n c e / v a l u e / " x m l n s : p r n = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / r e f e r e n c e / v a l u e - n o r m a l i z e d / " x m l n s : w d n o = " h t t p : / / w w w . w i k i d a t a . o r g / p r o p / n o v a l u e / " > Summary There may be some misunderstandings on my part, but I hope this serves as a helpful reference.

Overview#

Without Content Negotiation#

Using Content Negotiation#

Summary#

Overview

Without Content Negotiation

Using Content Negotiation

Summary