IDLE/Command Line Output Differ

[moody834]

BPO	595791
Nosy	@rhettinger

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = 'https://github.com/rhettinger'
closed_at = <Date 2002-08-18.20:19:13.000>
created_at = <Date 2002-08-16.00:01:17.000>
labels = ['expert-IDLE', 'invalid']
title = 'IDLE/Command Line Output Differ'
updated_at = <Date 2002-08-18.20:19:13.000>
user = 'https://bugs.python.org/moody834'

bugs.python.org fields:

activity = <Date 2002-08-18.20:19:13.000>
actor = 'moody834'
assignee = 'rhettinger'
closed = True
closed_date = None
closer = None
components = ['IDLE']
creation = <Date 2002-08-16.00:01:17.000>
creator = 'moody834'
dependencies = []
files = []
hgrepos = []
issue_num = 595791
keywords = []
message_count = 5.0
messages = ['12009', '12010', '12011', '12012', '12013']
nosy_count = 3.0
nosy_names = ['rhettinger', 'glingl', 'moody834']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue595791'
versions = []

[moody834]

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

[glingl]

Logged In: YES
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

[moody834]

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.

[rhettinger]

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

[moody834]

Logged In: YES
user_id=448016

Wow. Apparently I need a better prescription for my glasses. I I tried it
again (mind you, when I submitted it the first time I had tried it a few
times), and it worked perfectly.

Please accept my humble apologies. I don't know why I couldn't "see"
that I was not copying the code exactly.