SunQuest
           Python Programming
 
Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
User Name:
Password:
Remember me
Go Back   Dev Shed ForumsProgramming LanguagesPython Programming

Reply
Add This Thread To:
  Del.icio.us   Digg   Google   Spurl   Blink   Furl   Simpy   Y! MyWeb 
Thread Tools Search this Thread Rate Thread Display Modes
 
Unread Dev Shed Forums Sponsor:
Stay one step ahead of the competition. Evaluate and give feedback on some of the hottest web development tools on the market today. Make your opinion heard! Click Here
  #1  
Old November 7th, 2003, 05:12 PM
xlordt's Avatar
xlordt xlordt is offline
Only the strong survives!!.
Dev Shed God 1st Plane (5500 - 5999 posts)
 
Join Date: Feb 2003
Location: A World of wonder.
Posts: 5,543 xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)xlordt User rank is Major (30000 - 40000 Reputation Level)  Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1Folding Points: 108894 Folding Title: Super Ultimate Folder - Level 1
Time spent in forums: 4 Weeks 1 Day 22 h 41 m 58 sec
Reputation Power: 378
Send a message via ICQ to xlordt Send a message via AIM to xlordt Send a message via MSN to xlordt Send a message via Yahoo to xlordt Send a message via Google Talk to xlordt Send a message via Skype to xlordt
Facebook
join()

How do i use the string.join class with multydimentional arrays?

Code:
import string

matrix = [[1,2,3],[4,5,6],[7,8,9]]
join = string.join(matrix)
print join

Reply With Quote
  #2  
Old November 7th, 2003, 10:26 PM
lazy_yogi lazy_yogi is offline
Contributing User
Dev Shed Newbie (0 - 499 posts)
 
Join Date: Mar 2003
Posts: 325 lazy_yogi User rank is Just a Lowly Private (1 - 20 Reputation Level) 
Time spent in forums: 7 h 58 m 36 sec
Reputation Power: 6
join only operates on strings
http://www.python.org/doc/current/l...ng-methods.html

If you are trying to convert it to display the matrix as a string, try something like this

Code:
output = ""
for row in matrix:
    for element in row:
        output += str(element) + ' '
    if len(row) > 0: output = output[:-1]
    output += '\n'

Reply With Quote
  #3  
Old November 8th, 2003, 02:34 AM
netytan's Avatar
netytan netytan is offline
Hello World :)
Dev Shed Frequenter (2500 - 2999 posts)
 
Join Date: Mar 2003
Location: Hull, UK
Posts: 2,529 netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level)netytan User rank is Second Lieutenant (5000 - 10000 Reputation Level) 
Time spent in forums: 1 Week 2 Days 17 h 19 m 5 sec
Reputation Power: 63
Send a message via ICQ to netytan Send a message via AIM to netytan Send a message via MSN to netytan Send a message via Yahoo to netytan
For small lists of data this wouldn't be much of a problem but with HUGE lists this could be slow; because strings in Python are imutable the Python interpreter has to make copies of the strings when consinating them (string + string) and etc.

This should work better:

Code:
#!/usr/bin/env python

l = [[1,2,3],[4,5,6],[7,8,9]]
j = []

for s in l:
	for e in s:
		j.append(str(e))

print ''.join(j)


it only joins the data and doesnt display it in a matrix style like yogis does but you can do this is say.. one more line by appending a '\n' in there.

Mark.
__________________
programming language development: www.netytan.com Hula


Reply With Quote
Reply

Viewing: Dev Shed ForumsProgramming LanguagesPython Programming > join()


Thread Tools  Search this Thread 
Search this Thread:

Advanced Search
Display Modes  Rate This Thread 
Rate This Thread:


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
View Your Warnings | New Posts | Latest News | Latest Threads | Shoutbox
Forum Jump


Forums: » Register « |  User CP |  Games |  Calendar |  Members |  FAQs |  Sitemap |  Support | 
  
 





© 2003-2008 by Developer Shed. All rights reserved. DS Cluster 2 hosted by Hostway