[issue9618] IDLE shell ignores all but first statement

[irdb]

Changes by irdb :


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nosy: +irdb

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[issue9618] IDLE shell ignores all but first statement

[Terry J. Reedy]

Terry J. Reedy tjre...@udel.edu added the comment:

I agree: 
Implementation note: PyShell.py hass the following line:
from code import InteractiveInterpreter
That is the base class for InteractiveConsole, the subject of #7741.
PyShell makes it own extension
class ModifiedInterpreter(InteractiveInterpreter):

--
resolution:  - duplicate
status: open - closed
superseder:  - Pasted \n not same as typed \n

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[issue9618] IDLE shell ignores all but first statement

[Terry J. Reedy]

Terry J. Reedy tjre...@udel.edu added the comment:

To be clearer, this issue is an elaboration of the #3559 report that 
statement\nstatement 'does not work' in that it points out that simple 
statement\nsimplestatement silently ignores the second while 
compoundstatement\nsimplestatement is reported as a syntax error. I agree 
that this elaboration should have been included there and I am adding a message 
there.

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[issue9618] IDLE shell ignores all but first statement

[Terry J. Reedy]

Terry J. Reedy tjre...@udel.edu added the comment:

In interactive mode, multiline statements are terminated with a blank line. 
Your examples lacks that, so the 3rd line is part of the def and lacking the 
proper indent, is indeed a syntax error. You get the same with the standard 
command-line interpreter.
 def f():
... return 42
... f()
  File stdin, line 3
f()
^
SyntaxError: invalid syntax

That said, adding a blank line still gives a syntax error in IDLE, instead of 
ignoring the extra statement, while the interpreter prints 42. IDLE requires an 
explicit blank line from the keyboard to terminate compound statements; pasted 
blank lines do not count #3559 (which I now see you commented on - I should 
have been notified but was not).

I suspect you are correct about the dependency on code.InteractiveConsole(), 
but I have not looked at the IDLE code either.

In the meanwhile, either paste multiple statements in the the real interpreter 
or into an IDLE window and use F5 run.

--
nosy: +terry.reedy
type:  - feature request
versions:  -Python 2.7

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[issue9618] IDLE shell ignores all but first statement

[R. David Murray]

R. David Murray rdmur...@bitdance.com added the comment:

It seems to me that this bug should be closed as a duplicate of the original 
bug (#3559).  It's the same bug, only the proposed solution is different, 
unless I'm missing something.

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nosy: +r.david.murray

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[issue9618] IDLE shell ignores all but first statement

[Éric Araujo]

Changes by Éric Araujo mer...@netwok.org:


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nosy: +eric.araujo, kbk

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[issue9618] IDLE shell ignores all but first statement

[Cherniavsky Beni]

New submission from Cherniavsky Beni c...@users.sf.net:

[Spinoff of http://bugs.python.org/issue3559]

If you manage to type several simple statements into the prompt (by 
copy-pasting them, using Ctrl+J, or creative deletion), IDLE runs the first one 
and silently ignores the rest:

 x = 1
x = 2
 x
1

Moreover, it doesn't even parse the additional lines:

 x = 3
$...@syntax error?!
 x
3

If the first statement is a compound statement, IDLE refuses with a SyntaxError 
at the begging of the second statement:


 def f():
return 42
f()
SyntaxError: invalid syntax


I believe in both cases the right least-surprise behavior is to run all 
statements.

If not, a clear error explaining that IDLE doesn't support multiple statements 
must be printed.  But I can't see a reason to choose this over making it Just 
Work.


[Implementation: might or might not be related to 
http://bugs.python.org/issue7741]

--
components: IDLE
messages: 114019
nosy: cben
priority: normal
severity: normal
status: open
title: IDLE shell ignores all but first statement
versions: Python 2.7, Python 3.2

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