list_of_strings = ['test-1: foo', 'test-2: bar', 'test-3: cat']
# switch to a tuple
tuple_of_prefixes = ('test-1', 'test-2')
final_list = []
for i in list_of_strings:
if not i.startswith(tuple_of_prefixes):
final_list.append(i)
print(list(set(final_list)))
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