如何从Python中的元组对象保存数据？

Question

I am facing this error:

AttributeError: 'tuple' object has no attribute 'save'

from the following piece of code:

def load_images_to_db(path):
  for dirname, dirnames, filenames in os.walk(path):
    for subdirname in dirnames:
      subject_path = os.path.join(dirname, subdirname)
      label = Label.get_or_create(name=subdirname)
      label.save()

The error comes from this line: label.save()
Someone can help ?

Answer 1

get_or_create() returns a tuple. You do not have to explicitly call save()

Use

label, created = Label.get_or_create(name=subdirname)

• created will return if a new object is saved to DB
• label will return you the object that was saved.

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