[Python-bugs-list] [ python-Bugs-595791 ] IDLE/Command Line Output Differ

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Bugs item #595791, was opened at 2002-08-15 19:01
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Category: IDLE
Group: None
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: James Pomeroy (moody834)
Assigned to: Raymond Hettinger (rhettinger)
Summary: IDLE/Command Line Output Differ

Initial Comment:
Platform: OS X 10.1.5
XDarwin: 1.1 (XFree86 4.2)
IDLE: 0.8
Python: 2.2.1

Code (from Python Tutorial sec. 4.4) [I don't know if my 
indentation will be preserved here, but the code was indented per 
Python convention]:

>>> for n in range(2, 10):
...     for x in range(2, n):
...         if n % x == 0:
...            print n, 'equals', x, '*', n/x
...            break
...     else:
...          # loop fell through without finding a factor
...          print n, 'is a prime number'

Result in IDLE:

3 is a prime number
4 equals 2 * 2
5 is a prime number
5 is a prime number
5 is a prime number
6 equals 2 * 3
7 is a prime number
7 is a prime number
7 is a prime number
7 is a prime number
7 is a prime number
8 equals 2 * 4
9 is a prime number
9 equals 3 * 3

Result using (xterm) command line matched example given in 
Python Tutorial:

2 is a prime number
3 is a prime number
4 equals 2 * 2
5 is a prime number
6 equals 2 * 3
7 is a prime number
8 equals 2 * 4
9 equals 3 * 3

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>Comment By: Raymond Hettinger (rhettinger)
Date: 2002-08-18 14:42

Message:
Logged In: YES 
user_id=80475

Hello James,

It looks like your bug report has an error in that it is 
not "indented per Python convention".  When it was hand 
typed into IDLE, the 'else' clause needed to be aligned with 
the outermost 'for' rather than the 'if' block.  That is an 
easy typo to make since IDLE automatically indents to 
most recent block and you have to hit backspace to move 
out a level.

Thank you for submitting the bug report.  If you find 
something else, please let us know.  In the meantime, I'll 
mark this one as invalid and close the report.

Raymond Hettinger

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Comment By: James Pomeroy (moody834)
Date: 2002-08-16 10:22

Message:
Logged In: YES 
user_id=448016

UPDATE:

This issue all appears if I use OS X's default terminal. Same output as 
with IDLE. So, only xterm produces the result expected.

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Comment By: Gregor Lingl (glingl)
Date: 2002-08-16 07:00

Message:
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user_id=505031

Apparently this is a bug in the INPUT to IDLE,
as the incorrect output is produced, if the else-part in 
the statement is incorrectly idented as part of the if-statement
instead as a part of the for-statement


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