absolute path to a file
On 17Aug2019 11:51, Paul St George <email at paulstgeorge.com> wrote:
> print('Track D from Track B:',os.path.realpath(n.image.filepath))
>---Track D from Track B: /image01.tif
> print('Track E from Track B:',os.path.realpath(n.image.filepath[1:]))
>---Track E from Track B: /image01.tif
> print('Track F from Track C:',os.path.realpath(n.image.filepath[2:]))
>---Track F from Track C: /image01.tif
I know these may just be cut/paste, but you can shorten this by:
from os.path import realpath
print('Track F from Track C:',realpath(n.image.filepath[2:]))
I have 2 other questions:
1: Is image01.tif a real existing file when you ran this code?
realpath kind of expects that - it may do nothing for something which
doesn't exist. I'd point out that realpath(3), which you get from the
command "man 3 realpath", says:
The realpath() function will resolve both absolute and relative paths and
return the absolute pathname corresponding to file_name. All
components of file_name must exist when realpath() is called.
Most of the things in the os module are just thin wrappers for the OS
supplied functions, which is why the MacOS realpath library function is
2: What is your current working directory when you run this code?
If the underlying OS realpath fails, the Python library function might
fall back on os.path.join(os.getcwd(), filename).
3: What is the airspeed velocity of an unladen swallow?
Cameron Simpson <cs at cskk.id.au> (formerly cs at zip.com.au)