Find and replace is appending when run more than once ...

[Paul.Scipione at aps.com]

Hello,

I grabbed some sample code from the web and put together this python script which searches all subdirectories for a specific file type, then replaces a string with a new one.  Out of curiosity I ran it again.  Here's what happens (this also happens for the files I am looking to replace OutputPath=Z:\ with OutputPath=Z:\DXF):

1st run:  replaces OutputPath=Z:\ with OutputPath=Z:\CSV )
2nd run: replaces OutputPath=Z:\CSV with OutputPath=Z:\CSV\CSV
3rd run:  replaces OutputPath=Z:\CSV\CSV with OutputPath=Z:\CSV\CSV\CSV
And so on.

I cant figure out why it's doing this if I am searching a certain string value and replacing it.  I am also perplexed on why it is only adding the "CSV" each time rather than the full string.  What I want it to do is only replace once.  Next time I run it it shouldn't do anything.

import fnmatch,os,sys

mydir = 'C:\\!DOMSExtractor'
findStr = 'OutputPath=Z:\\'

def replaceStringInFile(findStr,replStr,filePath):
    tempName=filePath+'~~~'
    input = open(filePath)
    output = open(tempName,'w')

    for s in input:
        print findStr
        print replStr
        output.write(s.replace(findStr,replStr))
    output.close()
    input.close()
    os.remove(filePath)
    os.rename(tempName,filePath)
    print filePath

def myfun(dummy, dirr, filess):
    for child in filess:
        filePath = dirr+'/'+child
        if '.ini' == os.path.splitext(child)[1] and os.path.isfile(filePath):
            print file(filePath, 'rb').read().find(findStr)
            if file(filePath, 'rb').read().find(findStr) <> -1:
                if fnmatch.fnmatch(dirr+'/'+child, '*BGExtract.ini'):
                    replaceStringInFile(findStr,'OutputPath=Z:\\DXF\\',filePath)
                elif fnmatch.fnmatch(dirr+"/"+child, '*GISExtract.ini'):
                    replaceStringInFile(findStr,'OutputPath=Z:\\CSV\\',filePath)

os.path.walk(mydir, myfun, 3)


Thanks!

Paul J. Scipione
GIS Database Administrator
work: 602-371-7091
cell: 480-980-4721



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