ImageField upload_to issue

Hello, folks!

Here is the relevant part of my model:

    def i_upload_to(instance, filename):          return '/'.join([strftime('i/%y%m/%d'), filename])        def t_upload_to(instance, filename):          return '/'.join([strftime('t/%y%m/%d'), filename])        class Image(models.Model):          image = models.ImageField(upload_to=i_upload_to, blank=True)          thumbnail = models.ImageField(upload_to=t_upload_to, blank=True)

It works as expected, but it's really ugly, terrible code. Let's try to make it a little better:

    def upload_path(p):          return lambda instance, filename: '/'.join([p, strftime('%y%m/%d'), filename])

    class Image(models.Model):          image = models.ImageField(upload_to=upload_path('i'), blank=True)          thumbnail = models.ImageField(upload_to=t_upload_path('t'), blank=True)

In this case 'image' will be uploaded where expected (e.g. 'i/1301/26'), but thumbnail will be uploaded to directory like 't/1301/25/i/1301/26/' instead of 't/1301/26'.

Any opinions? Where do I make a mistake?

Thank you in advance for any advice.

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