Is there a value in using map() vs for?

Posted by roder on Stack Overflow See other posts from Stack Overflow or by roder
Published on 2009-05-17T19:45:43Z Indexed on 2010/04/08 18:43 UTC
Read the original article Hit count: 249

Filed under:

python

|

map

|

mapping

|

for-loop

Does map() iterate through the list like "for" would? Is there a value in using map vs for?

If so, right now my code looks like this:

for item in items:
    item.my_func()

If it makes sense, I would like to make it map(). Is that possible? What is an example like?

© Stack Overflow or respective owner

Related posts about python

unmet dependencies in Ubuntu 12.04

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I tried today to install a dvb-card on my Ubuntu 12.04 (Linux blauhai-linux 3.2.0-25-generic #40-Ubuntu SMP Wed May 23 20:30:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux ). The installation failed with an error. After that, i tried to install python (it was already installed but i got this error): linux:~$… >>> More
How can I get sikuli-ide to work?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I installed sikuli-ide with sudo apt-get install sikuli-ide Everything was fine until I tried to start it from the terminal. I typed sikuli-ide But the only response I got was [info] locale: en_US The application was not started, furthermore there is no desktop file and sikuli-ide does not… >>> More
Getting PATH right for python after MacPorts install

as seen on Super User - Search for 'Super User'
I can't import some python libraries (PIL, psycopg2) that I just installed with MacPorts. I looked through these forums, and tried to adjust my PATH variable in $HOME/.bash_profile in order to fix this but it did not work. I added the location of PIL and psycopg2 to PATH. I know that Terminal is… >>> More
call python with system() in R to run a python script emulating the python console

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to pass a chunk of Python code to Python in R with something like system('python ...'), and I'm wondering if there is an easy way to emulate the python console in this case. For example, suppose the code is "print 'hello world'", how can I get the output like this in R? >>> print… >>> More
Python - Calling a non python program from python?

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am currently struggling to call a non python program from a python script. I have a ~1000 files that when passed through this C++ program will generate ~1000 outputs. Each output file must have a distinct name. The command I wish to run is of the form: program_name -input -output -o1 -o2… >>> More

Related posts about map

ASA hairpining: I basicaly want to allow 2 spokes to be able to communicate with each other.

as seen on Server Fault - Search for 'Server Fault'
ASA Spoke to Spoke Communication I have been looking at spke to spoke comms or "hairpining" for months and have posted on numerouse forums but to no avail. I have a Hub and spoke network where the HUB is an ASA Firewall version 8.2 * I basicaly want to allow 2 spokes to be able to communicate with… >>> More
How do I map a java Map including another Map, as element, into hibernate *.hbm.xml

as seen on Stack Overflow - Search for 'Stack Overflow'
is there possibility to map something like: private Map<Website, Map<String, String>> parameterMaps = new HashMap<Website, Map<String, String>>(); Where 'Website' is my class having some strings attributes, and inner map should be some website specific url parts. I'd… >>> More
jQuery shops-map like a typical Flash-map with some dots representing shops

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all So, I need to do this: http://seeds.dk/find-din-seeds with jQuery. Also, I need to have some callback when clicking a needle. Are there some ready-made plugins for this function? >>> More
How to create multiboot flash drive

as seen on Super User - Search for 'Super User'
I've found a guide here: http://www.pendrivelinux.com/boot-multiple-iso-from-usb-multiboot-usb/ And found this menu.lst in my flash drive, which seems to be the one that I'm seeing when I boot using my flash drive: # This Menu Created by Lance http://www.pendrivelinux.com # Ongoing Suggested Menu… >>> More
SQL Server 2008 R2 Reporting Services - The Word is But a Stage (T-SQL Tuesday #006)

as seen on SQL Blog - Search for 'SQL Blog'
Host Michael Coles (blog|twitter) has selected LOB data as the topic for this month's T-SQL Tuesday, so I'll take this opportunity to post an overview of reporting with spatial data types. As part of my work with SQL Server 2008 R2 Reporting Services, I've been exploring the use of spatial data types… >>> More