@creepinshadow
Hi
This doesn't sound terribly difficult, but I did get a bit lost towards the end, I must admit!
A couple of points.
1. The open command is what you're looking for. This comes with different modes, read only (r), write (w), and append (a), as well as an updating mode (r+). I've never actually used this last, but it might be worth exploring, as it's possibly what you're after. However, I would tend to use two separate files, and definitely for development this is a good idea!
2. The rules about what the change is that's required need to be clear. They aren't from your post! We'll suppose for the sake of the pseudocode below that you write a function that converts the line to the new line:
- def myUpdater(line):
-
#take line and apply the update rules
-
return newline
3. The os module, and the path and walk commands may also be useful to you for going through all the files in a directory and/or subdirectories in turn. Very handy and works intuitively (like most of python!)
But roughly this kind of code:
- myReadFile = open("whatever.con","r")
-
myWriteFile = ("whatever.con.temp","w")
-
for line in myReadFile:
-
if 'shelving_v1_nav.con' in line:
-
#do whatever rule is required to edit the path in line
-
#write this new line to myWriteFile
-
myWriteFile.write(myUpdater(line))
-
else:
-
myWriteFile.write(line)
-
myReadFile.close()
-
myWriteFile.close()
How you write myUpdater depends on the complexity of the rules really, and the regularity of the input data. You might want to check out regular expressions - bit of a learning curve, but very powerful in the right circumstances. Which your situation may, or may not be.
Good luck!
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