OESF Portables Forum
Everything Else => Zaurus - Everything Development => Distros, Development, and Model Specific Forums => Archived Forums => Python => Topic started by: bam on August 09, 2005, 03:35:37 pm
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I need to search a line of text out in a file and replace it, so far the code examples on the net have produced empty files.
Basically the file is a *.conf file, now the structure of the file looks alot like a win *.ini file and in visual basic there is a function to access the sections (the headers in brackets) and each entry (the name with '='). Now the question, does python support or rather have a built in function for handleing that? If yes what is it? If no then how do I do a search and replace? I only have a partial string and want to replace the whole line until the eof(its the last line in the file)
and second question how is the Launcher.conf 'reloaded' after a change, does it get checked every so often?
or even better, what command line will change my wallpaper? Obviously you have the direction I am looking in so far.
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ok got the generator to work properly, I can randonly generate any pic from a specific directory and change the launcher.conf file.
Problem: How to tell the launcher to "refresh" the wallpaper. Or is there a commandline to set the wallpaper already, so I dont have to edit the launcher.config file?
BTW: in that file containes a list of fastload apps too, along with some other interesting stuff.
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So you got the string replace command in Python ?
If you didnt ....
You can search each line till eof after reading it into a list (or tuple, I keep getting confused which is which)
readFile = open(dataPath + "launcher.conf")
readLines = readFile.readlines()
for line in readLines :
header = line.split("=")[0]
entry = line.split("=")[1]
Once you find a match (on header or enrty), use replace function to replace a string with new string
For reference - string functions of Python
http://docs.python.org/lib/string-methods.html (http://docs.python.org/lib/string-methods.html)
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yea, go that, actually I only know the entry name "wallFName =" the rest is unknown, so I used the "for line in sFile" then did a if/then/else construct when it finds the line re-write the entire line(this is what *.replace does not do"
hek I will post the code, I just have to find a way to tell the launcher o refresh the wallpaper, google provided nothing
#!/usr/bin/env python
import os
import sys
import fileinput
import glob
import random
import re
piclist=glob.glob('/hdd3/Documents/Image_Files/wallpapers/*.*')
wallpic=random.choice(piclist)
wppath="/hdd3/Documents/Image_Files/wallpapers/" + wallpic
#/home/root/settings/launcher.conf
textToSearchFor= "wallFName"
newWallP= "wallFName =" + wppath
fileToSearch= "/hdd3/Documents/temp/launcher.conf"
fileToOutput= "/hdd3/Documents/temp/tempfile.conf"
fileToOutput = open( fileToOutput, 'w' )
#print "outfile = ", fileToOutput
for line in fileinput.input( fileToSearch ):
#fileToOutput.write( line.replace( textToSearchFor, textToReplaceWith ) )
slinee=""
sline=line[0:9]
if sline == "wallFName":
fileToOutput.write(newWallP)
else:
fileToOutput.write(line)
fileinput.close()
fileToOutput.close()
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Regular expressions are your friend
for line in fileinput.input( fileToSearch ):
fileToOutput.write(re.sub(r'wallFName =.*', "wallFName = " + wallpic, line))And yes, a compiled re would be faster but I'm too lazy to type the extra line of code
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cool, gotta try that one, you recommend any books? I am a vb programmer as well, with some fortran.
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For having the launcher reloaded, serach the forums for qcop; sending a qcop message will tell qtopia to reload its settings.
HTH
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cool, gotta try that one, you recommend any books? I am a vb programmer as well, with some fortran.
[div align=\"right\"][{POST_SNAPBACK}][/a][/div] (http://index.php?act=findpost&pid=91453\")
Truth be told, I learned Python just by reading the [a href=\"http://docs.python.org/tut/tut.html]Tutorial[/url] and the Library Reference (http://docs.python.org/lib/lib.html) but I came in with a lot of experience in other languages.
If you're an experienced programmer, you may find Dive Into Python (http://diveintopython.org/toc/index.html) helpful. It's probably a good place to start since you can read it online and then if it looks too advanced save your $$$ for something a little more beginner oriented. If you're looking for something a little more introductory I'm told that the O'Reilly Learning Python (http://www.oreilly.com/catalog/lpython2/) book is pretty good.
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For having the launcher reloaded, serach the forums for qcop; sending a qcop message will tell qtopia to reload its settings.
HTH
[div align=\"right\"][a href=\"index.php?act=findpost&pid=91455\"][{POST_SNAPBACK}][/a][/div]
havent found anything to tell it to reload its settings, maybe you saw something I did not?
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You can take a look at
https://www.oesf.org/index.php?title=Sharp_...a_QCop_Messages (https://www.oesf.org/index.php?title=Sharp_Qtopia_QCop_Messages)
Maybe the QPE/System restart() would do the trick for you.
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cool, gotta try that one, you recommend any books? I am a vb programmer as well, with some fortran.
[div align=\"right\"][{POST_SNAPBACK}][/a][/div] (http://index.php?act=findpost&pid=91453\")
Truth be told, I learned Python just by reading the [a href=\"http://docs.python.org/tut/tut.html]Tutorial[/url] and the Library Reference (http://docs.python.org/lib/lib.html) but I came in with a lot of experience in other languages.
If you're an experienced programmer, you may find Dive Into Python (http://diveintopython.org/toc/index.html) helpful. It's probably a good place to start since you can read it online and then if it looks too advanced save your $$$ for something a little more beginner oriented. If you're looking for something a little more introductory I'm told that the O'Reilly Learning Python (http://www.oreilly.com/catalog/lpython2/) book is pretty good.
[div align=\"right\"][a href=\"index.php?act=findpost&pid=91470\"][{POST_SNAPBACK}][/a][/div]
Other resouces include: A Byte of Python (http://www.byteofpython.info) and the The Python Grimoire (http://the.taoofmac.com/space/Python/Grimoire)