python anyone?

phrakture · 2004-11-03 15:20:11

I just had a dumb python question:
say I have a list L, I want to concatenate a char on the beginning of each item in this list and output it.. doing:

L=string.split("this is some random test list junk")
for i in L:
    i = '*'+str(i)
    print i

outputs like this:

*['this']
*['is']
*['some']
*['random']
*['test']
*['list']
*['junk']

and that's really not what I want... I want output like:

*this
*is
*some
*random
*test
*list
*junk

any helpful pointers? I'm new to python, so I don't fully grasp the nuances yet (I figured <string> + <list item> would do an implicit string conversion to the correct type)

xerxes2 · 2004-11-03 15:51:33

your code works fine for me in gnome-terminal,

phrakture · 2004-11-03 16:29:19

xerxes2 wrote:

your code works fine for me in gnome-terminal,

i should clarify...

stuff=[]
L=string.split("this is some random test list junk")
for i in L:
    i = '*'+str(i)
    stuff.append(i)
print stuff

is closer to what I'm using... each list element is spit off with list artifacts all over it

farphel · 2004-11-03 16:50:20

If you want a serious answer to this, you should post to comp.lang.python - there's some smarties over there.

If you want your results as a list, try:

["*"+x for x in "this is a test".split()]

or, join it back together if you want it as a string:

" ".join(["*"+x for x in "this is a test".split()])

If the objects in the list are not guaranteed to be strings, you can use the str(x) inside the list comprehension.

HTH,
farphel

xerxes2 · 2004-11-03 17:06:51

try this

 
x = len(stuff)
for i in range(x):
  print stuff[i]

so it should look like this

stuff=[]
L=string.split("this is some random test list junk")
for i in L:
    i = '*'+str(i)
    stuff.append(i)
x = len(stuff)
for i in range(x):
  print stuff[i]

jochen · 2004-11-03 17:46:25

Hi,

I can't help you with your python problem, but I feel like I have to mention how it would be done with one simple ruby one-liner:

ruby -e '"this is some random test list junk".split.each{|word| puts "*#{word}"}'

cactus · 2004-11-03 18:03:44

w00t!
another ruby zealot. Soon we will conquer the world!
muahahahaha

phrakture · 2004-11-03 19:26:45

jochen wrote:

ruby -e '"this is some random test list junk".split.each{|word| puts "*#{word}"}'

pffft

[print "*"+word for word in string.split("this is some random test list junk")]
or
[print "*"+word for word in "this is some random test list junk".split()]

yeah it works in python too, but its not exactly what I'm doing - I used this as an example based on what I'm doing... theres much more code in the real thing

phrakture · 2004-11-03 19:38:21

turns out my problem has to do with usage of the os.path.walk call - and directory formatting plus string.join() calls...
I think I fixed it

Arch Linux

#1 2004-11-03 15:20:11

python anyone?

#2 2004-11-03 15:51:33

Re: python anyone?

#3 2004-11-03 16:29:19

Re: python anyone?

#4 2004-11-03 16:50:20

Re: python anyone?

#5 2004-11-03 17:06:51

Re: python anyone?

#6 2004-11-03 17:46:25

Re: python anyone?

#7 2004-11-03 18:03:44

Re: python anyone?

#8 2004-11-03 19:26:45

Re: python anyone?

#9 2004-11-03 19:38:21

Re: python anyone?

Board footer