You can put comments like you normally would anywhere in a python script. But note that you can only put single line comments using #. Multiline comments act like strings and you cannot put just a string in between definition of a dict. For example, the following declaration is perfectly valid −
Example
testItems = {
'TestOne': 'Hello',
# 'TestTwo': None,
}But the following is not −
testItems = {
'TestOne': 'Hello',
"""
Some random
multiline comment
"""
}