reading gctx from a non-fs file object

[idavydov]

Hi,
In our settings there is often a need to read a .gctx file from a non-file (i.e. python file object).
Currently it is not possible with cmapPy. The parse method explicitly checks for the filename:

cmapPy/cmapPy/pandasGEXpress/parse_gctx.py

Line 64 in f3fdf01

if not os.path.exists(full_path):

On the other hand h5py supports any file objects.

Would it be possible to rely on duck-typing in the parse function instead to allow for different types of input file objects?

[idavydov]

Apparently, there are problems reading HDF5 from S3 at the moment. See here: h5py/h5py#1530

So currently depends on the upstream functionality of h5py.