Bugs item #1641109, was opened at 2007-01-21 23:34
Message generated for change (Comment added) made by gbrandl
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Category: Documentation
Group: None
Status: Closed
Resolution: Invalid
Priority: 5
Private: No
Submitted By: ilalopoulos (arafin)
Assigned to: Nobody/Anonymous (nobody)
Summary: 2.3.6.4 Error in append and extend descriptions
Initial Comment:
2.3.6.4 Mutable Sequence Types (2.4.4 Python Doc)
Error in the table describing append and extend operations for the list type.
specificaly:
s.append(x) same as s[len(s):len(s)] = [x] (2)
s.extend(x) same as s[len(s):len(s)] = x (3)
should be:
s.append(x) same as s[len(s):len(s)] = x (2)
s.extend(x) same as s[len(s):len(s)] = [x] (3)
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Comment By: Georg Brandl (gbrandl)
Date: 2007-01-22 08:20
Message:
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Have you tried the original code and your corrections?
If you do, you'll find that the original is correct.
(In extend, x is already a sequence, so you mustn't wrap it in a list.
In append, you want only one element added, so you wrap x in a list.)
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