How to compare list of lists with another list in Python?

Question

a=[('3.25% GLN State Bank of India, London Br 2013-18.4.18 Global Sr Reg S (21163588)', '100,000.00', '100,040.00', '-1,755.00', '-1.72%'), ('Uts Muz ShortDur Acc.Units Class -R- Hedged USD (11851008)', '3,750.00', '463,500.00', '14,252.14', '+3.17%'), ('Shs PIMCO Income Accum.Shs Class -E- USD (20152466)', '48,433.,074', '655,783.82', '54,814.53', '+9.12%'), ('7.625% NTS Trafigura Group Pte Ltd 2013-WFM C red. 19.4.18 at 100% (21144967)', '200,000.00', '204,574.31', '28,310.00', '+16.44%'), ('2.5% NTS Glencore Funding LLC 2013-15.1.19 Reg-S Senior (21488623)', '160,000.00', '159,432.00', '26,376.00', '+19.82%'), ('6.25% NTS Deutsche Bank AG 2014-Without Fixed Mat Variable Rate Reg-S (24513566)', '400,000.00', '401,846.01', '15,420.00', '+4.05%')]

and

b=['Shs PIMCO Income Accum.Shs Class -E- USD (20152466)', '48,433.,074', '655,783.82', '54,814.53', '+9.12%']

how to compare these two lists?

for list1 in list2:
    return True

if I above thing by passing any other element in b that is not there in list then also it passes True.

Answer 1

If your objective is to check that one list of a is the list b, you should test b in a.

However, this will return False since a is a list of tuples and b is a list. Then, you have three solutions:

• Change a into a list of list (change the (.) by [.])
• Change b into a tuple b=('Shs PIMCO Income Accum.Shs Class -E- USD (20152466)', '48,433.,074', '655,783.82', '54,814.53', '+9.12%')
• Do not change the input data and use tuple(b) in a (this will cast b into a tuple before the test)