Try to parse prepare data config

[camillebrianceau]

coming

[pep8speaks]

Hello @camillebrianceau! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file clinicadl/utils/list_option.py:

Line 24:5: E266 too many leading '#' for block comment
Line 31:5: E266 too many leading '#' for block comment
Line 35:5: E266 too many leading '#' for block comment
Line 40:5: E266 too many leading '#' for block comment
Line 44:5: E266 too many leading '#' for block comment
Line 49:5: E266 too many leading '#' for block comment
Line 58:5: E266 too many leading '#' for block comment
Line 61:5: E266 too many leading '#' for block comment
Line 66:5: E266 too many leading '#' for block comment
Line 72:5: E266 too many leading '#' for block comment
Line 82:5: E266 too many leading '#' for block comment
Line 86:5: E266 too many leading '#' for block comment
Line 95:5: E266 too many leading '#' for block comment
Line 101:5: E266 too many leading '#' for block comment
Line 106:5: E266 too many leading '#' for block comment
Line 114:5: E266 too many leading '#' for block comment
Line 119:5: E266 too many leading '#' for block comment
Line 123:5: E266 too many leading '#' for block comment
Line 126:5: E266 too many leading '#' for block comment
Line 129:5: E266 too many leading '#' for block comment
Line 135:5: E266 too many leading '#' for block comment
Line 140:5: E266 too many leading '#' for block comment
Line 145:5: E266 too many leading '#' for block comment
Line 153:5: E266 too many leading '#' for block comment
Line 160:5: E266 too many leading '#' for block comment
Line 165:5: E266 too many leading '#' for block comment
Line 171:5: E266 too many leading '#' for block comment
Line 176:5: E266 too many leading '#' for block comment
Line 194:5: E266 too many leading '#' for block comment
Line 203:5: E266 too many leading '#' for block comment
Line 207:1: E266 too many leading '#' for block comment