[Python-bugs-list] [ python-Bugs-491301 ] a bad tuple comparison

[noreply@sourceforge.net]

Bugs item #491301, was opened at 2001-12-10 12:48
You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=491301&group_id=5470

Category: None
>Group: Not a Bug
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Daniel Ortmann (dortmann)
Assigned to: Nobody/Anonymous (nobody)
Summary: a bad tuple comparison

Initial Comment:
A slice of sys.version_info does not compare as a tuple.

#!/usr/local/bin/python

import sys

a = (2,2)
b = (sys.version_info[0:1])
c = (sys.version_info[0], sys.version_info[1])

assert a == b, "kaBOOM!  assertion failed: a == b"
assert a == c, "kaBOOM!  assertion failed: a == c"

print "everything is okey dokey!  :-)"

Comment out the first assert and everything works fine.

(I am new to python, but this seems to be an error; it
was, at the very least, unexpected and counter intuitive.)



----------------------------------------------------------------------

>Comment By: Tim Peters (tim_one)
Date: 2001-12-10 13:21

Message:
Logged In: YES 
user_id=31435

Not a bug.  Review the docs on sequence slicing:  s[i:j] 
contains j-i elements, not j-i+1.  Try printing sys.version
[0:1], then try printing sys.version[:2].  Repeat until the 
light bulb goes off <wink>.

----------------------------------------------------------------------

You can respond by visiting: 
http://sourceforge.net/tracker/?func=detail&atid=105470&aid=491301&group_id=5470