[reportlab-users] isinstance(val, file)

[Andy Robinson]

On 14/11/2007, Carl Karsten <carl at personnelware.com> wrote:

> This is not really a reportlab problem, but close enough.

>

> How can I test that the file to be passed to canvas.Canvas(buffer) is really a

> file type object that can be written to?  I am trying to work with a wrapper

> that looks like this:



The traditional python approach would be...

  if hasattr(val, 'file'):
      #treat it like a file
  else:
      #treat it like a string

i.e. if it walks like a duck and quacks like a duck...

- Andy