Readability: Python List Comprehension vs. Not

gistfile1.txt

# List Comprehension:    
    process_dict = dict([(attributes.filename, attributes.st_size) for attributes in file_list if attributes.filename.startswith('solcon')])

# Whitespace Generous:
    for attributes in file_list:
        if attributes.filename.startswith('solcon'):
            process_dict[attributes.filename] = attributes.st_size