On 10/2/2010 8:56 AM Josep M. Fontana said...
Hi,
This is my first posting to this list. Perhaps this has a very easy answer
but before deciding to post this message I consulted a bunch of Python
manuals and on-line reference documents to no avail. I would be very
grateful if someone could lend me a hand with this.
Hi Josep,
Break the problem into pieces.
Conceptually, you'll need to:
-a- get the list of file names to change then for each
-b- determine the new name
-c- rename the file
For -a- you'll need glob. For -c- use os.rename. -b- is a bit more
involved. To break -b- down:
-b1- break out the x-xx portion of the file name
-b2- look up the corresponding year in the other file
-b3- convert the year to the century-half structure
-b4- put the pieces together to form the new file name
For -b2- I'd suggest building a dictionary from your second files
contents as a first step to facilitate the subsequent lookups.
You haven't included any code and we can't gauge how far along you are,
so follow up and post the code you write as you go and we'll be better
able to help out.
Hope this is enough to get you started,
Emile
Here's the problem I want to solve. I have a lot of files with the following
name structure:
A-01-namex.txt
A-02-namey.txt
...
N-09-namez.txt
These are different text documents that I want to process for an NLP project
I'm starting. Each one of the texts belongs to a different century and it is
important to be able to include the information about the century in the
name of the file as well as inside the text.
Then I have another text file containing information about the century each
one of the texts was written. This document has the following structure:
A-01, 1278
A-02, 1501
...
N-09, 1384
What I would like to do is to write a little script that would do the
following:
. Read each row of the text containing information about the centuries each
one of the texts was written
. Change the name of the file whose name starts with the code in the first
column in the following way
A-01-namex.txt --> A-01-namex_13-2.txt
Where 13-1 means: 13th 2nd half. Obviously this information would com
from the second column in the text: 1278 (the first two digits + 1 =
century; if the 3rd and 4th digits> 50, then 2; if< 50 then 1)
Then in the same script or in a new one, I would need to open each one of
the texts and add information about the century they were written on the
first line preceded by some symbol (e.g @13-2)
I've found a lot of information about changing file names (so I know that I
should be importing the os module), but none of the examples that were cited
involved getting the information for the file changing operation from the
contents of a document.
As you can imagine, I'm pretty green in Python programming and I was hoping
the learn by doing method would work. I need to get on with this project,
though, and I'm kind of stuck. Any help you guys can give me will be very
helpful.
Josep M.
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