Python IF multiple "and" "or" in one statement

Use parenthesis to group the conditions:

if value[6] in target and (value[0] in target or value[1] in target):

Note that you can make the in lookups in constant time if you would define the target as a set:

target = {1,2,3,4,5,6,f}

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And, as mentioned by @Pramod in comments, in this case value[6] would result in an IndexError since there are only 6 elements defined in value and indexing is 0-based.