diff --git a/Doc/tutorial/classes.rst b/Doc/tutorial/classes.rst
index 4676ef4..b8f1226 100644
--- a/Doc/tutorial/classes.rst
+++ b/Doc/tutorial/classes.rst
@@ -892,10 +892,7 @@
    >>> 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
new file mode 100644
index 0000000..c4ed27e
--- /dev/null
+++ 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