Question

I have been given data which cannot be interpreted by my software unless it has a lowercase letter at the end. The data was delivered with an uppercase letter at the end.

Somehow I need to first recursively loop through all folders and find whether the filename ends with a letter and then change it to lowercase.

I think python could do this, but I don´t know how,. Any help would be great!

yours,
Rob

Answer 1

def listFiles(dir):
    rootdir = dir
    for root, subFolders, files in os.walk(rootdir):
        for file in files:
            yield os.path.join(root,file)
    return


for f in listFiles(r"Your Path"):
    if f[-1].isalpha():
        os.rename(f,f[:-1]+f[-1].lower())
        print "Renamed " + f + "to" + f[:-1]+f[-1].lower()

List the files recursively. If the last character is an alphabet change it to lowercase and rename the file

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Modifying the program as per the poster’s latest requirement

for fname in listFiles(r"Your Path"):
        newName=re.match("(^.*?)([A-Za-z\.]*$)",x)
        newName=''.join([newName[0],newName[1].lower()])
        os.rename(fname,newName)
        print "Renamed " + fname + "to" + newName