How can I find all the possible combinations of a list of lists (in Python)?

Posted by Pheter on Stack Overflow See other posts from Stack Overflow or by Pheter
Published on 2010-06-07T13:43:31Z Indexed on 2010/06/07 13:52 UTC
Read the original article Hit count: 239

Filed under:

python

I have the following structure in Python:

letters = [['a', 'b', 'c'], ['p', 'q', 'r', 's'], ['j', 'k', 'l']]

I would like to find all the possible combinations of letters in the order that they currently exist. For the example above this would be:

apj
apk
apl
aqj
aqk
aql
...
csk
csl

This seems like it should be a very simple thing to do but I cannot figure it out.

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

Developer IT

How can I find all the possible combinations of a list of lists (in Python)? - Developer IT

How can I find all the possible combinations of a list of lists (in Python)?

python

Related posts about python

unmet dependencies in Ubuntu 12.04

How can I get sikuli-ide to work?

Getting PATH right for python after MacPorts install

call python with system() in R to run a python script emulating the python console

Python - Calling a non python program from python?

Categories cloud