Issue running drug example

[akhilpandey95]

When I try to run

python uno_baseline_keras2.py --config_file uno_by_drug_example.txt

I am getting the following error:

Traceback (most recent call last):
  File "uno_baseline_keras2.py", line 555, in <module>
    main()
  File "uno_baseline_keras2.py", line 551, in main
    run(params)
  File "uno_baseline_keras2.py", line 309, in run
    use_exported_data=args.use_exported_data,
  File "/home/z1835018/code/uncertainty/Benchmarks/Pilot1/Uno/uno_data.py", line 999, in load
    self.save_to_cache(cache, params)
  File "/home/z1835018/code/uncertainty/Benchmarks/Pilot1/Uno/uno_data.py", line 698, in save_to_cache
    os.mkdir(dirname)
FileNotFoundError: [Errno 2] No such file or directory: ''