bpo-32722: Remove useless example in the Classes tutorial (#5446)

matrixise · zhangyangyu · commit ab328756d7fd · 2018-02-01T15:31:07.000+08:00
In the tutorial about the Generator expression, there is an example with
a dict comprehension and not with a generator expression, just removed
the code.
diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
@@ -892,10 +892,7 @@ Examples::
    >>> sum(x*y for x,y in zip(xvec, yvec))         # dot product
    260
 
-   >>> from math import pi, sin
-   >>> sine_table = {x: sin(x*pi/180) for x in range(0, 91)}
-
-   >>> unique_words = set(word  for line in page  for word in line.split())
+   >>> unique_words = set(word for line in page  for word in line.split())
 
    >>> valedictorian = max((student.gpa, student.name) for student in graduates)
 
diff --git a/Misc/NEWS.d/next/Documentation/2018-01-30-11-28-27.bpo-32722.frdp6A.rst b/Misc/NEWS.d/next/Documentation/2018-01-30-11-28-27.bpo-32722.frdp6A.rst
@@ -0,0 +1,2 @@
+Remove the bad example in the tutorial of the Generator Expression. Patch by
+Stéphane Wirtel

Original file line number	Diff line number	Diff line change
`@@ -892,10 +892,7 @@ Examples::`
`892`	`892`	`>>> sum(x*y for x,y in zip(xvec, yvec)) # dot product`
`893`	`893`	`260`
`894`	`894`
`895`		`- >>> from math import pi, sin`
`896`		`- >>> sine_table = {x: sin(x*pi/180) for x in range(0, 91)}`
`897`		`-`
`898`		`- >>> unique_words = set(word for line in page for word in line.split())`
	`895`	`+ >>> unique_words = set(word for line in page for word in line.split())`
`899`	`896`
`900`	`897`	`>>> valedictorian = max((student.gpa, student.name) for student in graduates)`
`901`	`898`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Remove the bad example in the tutorial of the Generator Expression. Patch by`
	`2`	`+Stéphane Wirtel`