[Python] replacing lines in a file

On 26/01/2011 21:50, mpnordland wrote:
Attached are a config file parser that i'm working on, and a example
config file. Basically, what my problem is is in write_config, it should
search through the file, and replace the lines with whatever the
modified version is, it is also designed to ignore comments. To see my
problem (which is hard to describe) please first look at the config
file, and then run config-parse.py then look at the config file again.
One of two things should happen: nothing, or something weird should
happen on the last line.

#!/usr/bin/python
import fileinput >
def read_config(file):
config={}
if isinstance(file, type('str')) :
config_file=open_config_file(file, 'r')
if not config_file:
return 1
for option in config_file:
option=option.replace('\n','')
if option!='' and '#' not in option:
option=option.split(':')
config[option[0]]=option[1]
config_file.close()
return config
else:
print "the file paramenter should be a string contianing a file path"
return 1

config_file.close()
else:
print "The config arg must be a dictionary and/or the file arg must
be a string containing a file path"
def open_config_file(file, mode):
try:
config_file=open(file,mode)
except IOError:
print "That File Doesn't exist!"
return None
return config_file >
if __name__ == '__main__':
file = './net-responsibility.conf2'
config=read_config(file)
print config
config["logfile"]=' 5'
file = './net-responsibility.conf2'
write_config(config, file)

On 28/01/2011 00:58, mpnordland wrote:
thanks for explaining what I was doing wrong and how reading the file
works. What would you suggest I do to remedy the situation?