Using Pathlib to search for specific folder

Question

I am trying to find a specific folder holding a bunch of fits files. The current code I have is

redpath = os.path.realpath('.')         
thispath = os.path.realpath(redpath)         
thispath = os.path.realpath(thispath+'/../../../..')
p = Path(thispath)
userinput = 'n'
while (userinput == 'n'):
    text_file = next(p.glob('**/*.fits'))
    print("Is this the correct file path?")
    print(text_file)
    SearchedFiles = []
    SearchedFiles.append(text_file)
    userinput = input("y or n")
    if (userinput == 'n') :
        while(text_file in SearchedFiles) :
            p = Path(thispath)
            text_file = next(p.glob('**/*.fits'))

So if pathlib finds the wrong file fist, the user will say so and supposedly the code will then go through and search again until it finds another file with fits folders. I am getting stuck in an infinite loop because it only goes down one path.

Answer 1

I'm not quite sure I understand what you're trying to do. However, it's no wonder you're getting stuck in a loop: by re-initializing p.glob() you're starting all over again every time!

p.glob() is actually a generator object, which means it will keep track of its progress by itself. You may just use it the way it was meant to be used: by just iterating over it.

So, for instance, you might be better served by the following:

redpath = os.path.realpath('.')         
thispath = os.path.realpath(redpath)         
thispath = os.path.realpath(thispath+'/../../../..')
p = Path(thispath)
chosen = None
for text_file in p.glob('**/*.fits'):
    print("Is this the correct file path?")
    print(text_file)
    userinput = input("y or n")
    if userinput == 'y':
        chosen = text_file
        break
if chosen:
    print ("You chose: " + str(chosen))