Create nilearn_data as a working dir for _get_dataset_dir
Remove double import of shutil
fix assert brakets
Try to create directories for datasets on the run. simple test included
Change logic for searching dataset dir
Catching all exceptions and reporting at the end
Separate loops searching for dataset directory and for creating the directory
Change error message and remove unneeded clause
Test clause on non-directories
Coding stile changes
change work inside temporary directory in get dataset dir test
Quickfix on failing tests
Regexp control on raised errors
Different environment setup testing
Code sintax simplification