For the first issue, I'm guessing this is due to the following boto bug: https://github.com/boto/boto/issues/3006 Below is an example script for accessing HCP resources via Python. Thanks to Ariel Rokem for help figuring this out!
If anybody can help with an example XNAT URL for accessing all files of a particular subject, that would be greatly appreciated! Ben # Read about AWS boto here: http://boto.readthedocs.org/en/latest/ import boto s3 = boto.connect_s3(profile_name='hcp') buck = s3.get_bucket('hcp-openaccess') with open('S500.txt', 'wb') as fp: buck.get_key('HCP/S500.txt').get_file(fp) # downloads contents to a local file Note: ~/.aws/credentials contains: [hcp] aws_access_key_id = [my_hcp_access_key] aws_secret_access_key = [my_hcp_secret_key] On Fri, Jun 12, 2015 at 2:30 PM, Ben Cipollini <[email protected]> wrote: > Hi, > > I'm trying to access HCP files via scripting. I know the directory > structure through the appendix III definitions. However, I am not sure how > to access the resources through XNAT nor Amazon S3. > > > In XNAT, I can't figure out what URL to construct to access any file. For > example, what would be the URL to access the file > 100307/tfMRI_EMOTION_LR/100307/tfMRI_EMOTION_LR/100307_3T_tfMRI_EMOTION_LR.nii.gz > ? > > > Alternately, I'm trying to access the Amazon S3 files through Amazon's > boto package. I can open a connection with my S3 credentials, and I see a > "hcp-openaccess" bucket. When I try to list the bucket contents (for > file_key in bucket.list(): print file_key), I get access denied. > > Has anybody tried accessing the S3 data in this way that can share an > example script? Or any suggestions for other ways to script the access? > > > Thanks, > Ben > _______________________________________________ HCP-Users mailing list [email protected] http://lists.humanconnectome.org/mailman/listinfo/hcp-users
