Find text then add line after in Python

Question

Hello,

I need to read a plist file and search for a string, then add a new line of text on the next line. I can't imagine it will take much to do this. However the plist is in binary format so not exactly sure how to deal with that.

Thanks in advance,

Aaron

#Convert plist to XML
os.system('plutil -convert xml1 com.apple.iChat.Jabber.plist')

AutoDiscovery = "<integer>0<integer>"

import fileinput
for line in fileinput.FileInput("com.apple.iChat.Jabber.plist",inplace=1):
   line = line.replace("<key>AutoDiscoverHostAndPort</key>",AutoDiscovery)
   print line,

#Concert plist to binary file
os.system('plutil -convert binary1 com.apple.iChat.Jabber.plist')

Answer 1

Use plistlib for all your plist file needs. No conversion needed.

Answer 2

You want to convert it into xml format first:

plutil -convert xml file.plist

Then the rest should be fairly easy.

EDIT:

newFile = open('file.copy', 'w+')
for line in open('file'):
    if (line.find('string_to_find') >= 0):
        # do something with "line"
    newFile.write(line)
newFile.close()

EDIT2:

# convert plist from binary to xml

plist = plistlib.readPlist('your.plist')
plist['key'] = 0
plistlib.writePlist('your.plist')

# convert plist from xml to binary