Thank you, Manuel.
This is the contents of the bob_bio_databases.txt file on my machine. I have tried removing the forward slashes '\'s in the YOUR_ATNT_DIRECTORY but still get the same error.
[YOUR\_ATNT\_DIRECTORY] = /Users/anitaantony/Documents/Biometrics/att_faces/
I did have the [] inside the file. Does the bob_bio_databases.txt have to live in a particular directory? The att_faces directory contains the directories s1 through s40 so I believe I have the database installed correctly. Also, is the bob_bio_databases.txt file supposed to be a hidden file? Should it actually be .bob_bio_databases.txt? I have tried as a hidden file and also had the same error.
I ran the "conda install" commands for bob.bio.gmm, bob.bio.face, bob.bio.video, bob.db.youtube and gridtk without errors. The nosetests also ran without errors as per the installation instructions.
Thanks
Anita