[email protected] wrote:
Here is the updated viersion:
---
import glob
import csv
from os import rename
countries = {}
reader = csv.reader(open("countries.csv"))
for row in reader:
code, name = row
countries[name] = code
files = set([file for file in glob.glob('Flag_of_*.svg')])
for file in files:
file = file[8:-4]
if file.startswith('the_'):
file = file[4:]
if countries.has_key(file):
b = 'flag-'+ countries[file] + '.svg'
print b
rename(file, b)
But I cannot get the rename to take effect and I get an error:
$ python rename_svg.py
Uganda flag-ug.svg
Traceback (most recent call last):
File "rename_svg.py", line 21, in <module>
rename(file, b)
OSError: [Errno 2] No such file or directory
What am I missing?
-------- Original Message --------
From: Kent Johnson <[email protected]>
Apparently from: [email protected]
To: [email protected]
Cc: [email protected], [email protected]
Subject: Re: [Tutor] renaming files within a directory
Date: Mon, 27 Jul 2009 07:01:32 -0400
On Mon, Jul 27, 2009 at 5:10 AM, <[email protected]> wrote:
files = set([file for file in os.listdir(os.getcwd()) if file.endswith('svg')])
print len(files)
for file in files:
file = file.strip('.svg')
print file
# if countries.has_key(file):
# print file
When I run this I get:
Flag_of_Uganda
...
The problem is that for example the file Flag_of_the_United_States.svg when I
use the strip('.svg') it is returned as Flag_of_the_United_State
Also, How do I remove 'Flag_of', 'Flag_of_the_'
I suggest you use glob.glob() instead of os.listdir():
files = glob.glob('Flag_of_*.svg)
Then you know that each file name starts with Flag_of_ and ends with
.svg. To remove them, since they are fixed strings you can just use
slicing;
file = file[8:-4]
if file.startswith('the_'):
file = file[4:]
Kent
_______________________________________________
Tutor maillist - [email protected]
http://mail.python.org/mailman/listinfo/tutor
You changed the name contained in file from the original so it now
cannot find what you are referring to. Try not to shadow built-in names
like file by the way, it can cause unintended side-effects.
Make changes to this effect:
for filename in files:
fn = filename[8:-4]
if fn.startswith('the_'):
fn = fn[4:]
if fn in countries: # Dictionaries can be accessed this way and it
looks cleaner.
new_filename = 'flag-%s.svg' % countries[fn] # String
formatting is neater and faster than concatenation
rename(filename, new_filename)
--
Kind Regards,
Christian Witts
_______________________________________________
Tutor maillist - [email protected]
http://mail.python.org/mailman/listinfo/tutor
