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[3.7] bpo-33460: remove ellipsis that look like continuation prompts (GH-7851) #9152

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Merged
miss-islington merged 1 commit into from
Sep 11, 2018
Merged

[3.7] bpo-33460: remove ellipsis that look like continuation prompts (GH-7851) #9152

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14 changes: 10 additions & 4 deletions Doc/tutorial/introduction.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -223,10 +223,14 @@ This only works with two literals though, not with variables or expressions::

>>> prefix = 'Py'
>>> prefix 'thon' # can't concatenate a variable and a string literal
...
File "<stdin>", line 1
prefix 'thon'
^
SyntaxError: invalid syntax
>>> ('un' * 3) 'ium'
...
File "<stdin>", line 1
('un' * 3) 'ium'
^
SyntaxError: invalid syntax

If you want to concatenate variables or a variable and a literal, use ``+``::
Expand Down Expand Up @@ -320,10 +324,12 @@ Python strings cannot be changed --- they are :term:`immutable`.
Therefore, assigning to an indexed position in the string results in an error::

>>> word[0] = 'J'
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment
>>> word[2:] = 'py'
...
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment

If you need a different string, you should create a new one::
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Documentation/2018-06-22-08-38-29.bpo-33460.kHt4D0.rst
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@@ -0,0 +1 @@
replaced ellipsis with correct error codes in tutorial chapter 3.