tst: add datalad import

Author: mgxd

tests/utils.py

@@ -1,18 +1,17 @@
 import hashlib
 import os.path as op
 
-
 def md5sum(filename):
     with open(filename, 'rb') as f:
         return hashlib.md5(f.read()).hexdigest()
 
+
 def gen_heudiconv_args(datadir, outdir, subject, heuristic_file, xargs=None):
 	heuristic = op.realpath(op.join(
 								op.dirname(heudiconv.__file__),
 					        	'..',
 			        			'heuristics',
 			        			heuristic_file))
-
 	args = ["-d", op.join(datadir, 'sourcedata/{subject}/*/*/*.tgz'),
 			"-c", "dcm2niix",
 			"-o", outdir,
@@ -28,7 +27,9 @@ def gen_heudiconv_args(datadir, outdir, subject, heuristic_file, xargs=None):
 
 def fetch_data(tmpdir, subject):
 	"""Fetches some test dicoms using datalad"""
-	targetdir = op.join(tmpdir, 'QA')
+    from datalad import api
+
+    targetdir = op.join(tmpdir, 'QA')
 	api.install(path=targetdir,
 				source='///dbic/QA')
 	api.get('{}/sourcedata/{}'.format(targetdir, subject))