Python Variable Error - 'photo_path' is not defined when opening image file

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1

I’m working on a computer vision project and getting stuck with a variable scope issue. I’m fairly new to Python so maybe I’m missing something obvious.

# This is the error I keep getting:
Traceback (most recent call last):
  File "vision_analyzer.py", line 42, in <module>
    with open(photo_path, mode="rb") as img_data:
              ^^^^^^^^^^
NameError: name 'photo_path' is not defined

I think the problem is that my script can’t find the image file I’m trying to process. I’ve been trying different ways to set the file path but nothing works:

# Tried these different approaches:
photo_path = './images/building.jpg'
photo_path = os.path.join('images', 'building.jpg')
photo_path = '/full/path/to/my/project/images/building.jpg'

I’ve been stuck on this for hours now. How can I properly define the image file path variable? Also, what’s the best way to check if the variable is correctly set when debugging in VS Code?

2

definitely make sure photo_path is outside any functions. you want it global for access everywhere in your script. also, check the actual path in your files to ensure it matches what you’re trying to load, better to test it first!