how can i see the cashflows of a specific bond created in quantlib in Python? this is the code i have, how should i change it

Question

This is the code i have, what would be the way to see the cashflows of this specific bond i created

Answer 1

As Dimitri said, you can use the cashflows inspectors:

for cf in bond.cashflows():
    print(cf.date().ISO(), cf.amount())

2019-07-30 1.4999999999999902
2020-01-30 1.4999999999999902
2020-07-30 1.4999999999999902
(...)
2029-01-30 1.4999999999999902
2029-07-30 1.4999999999999902
2030-01-30 1.4999999999999902
2030-01-30 100.0

This way your cashflows will have a date and an amount, and you will see both the interest and redemptions.

If you need a bit more detail, you can use the ql.as_coupon, ql.as_fixed_rate_coupon or ql.as_floating_rate_coupon methods to extract additional fields:

import pandas as pd
fields = [
    'accrualDays', 'accrualEndDate', 'accrualPeriod', 'accrualStartDate',
    'amount',  'date', 'dayCounter', 'interestRate', 'nominal',  'rate'
]

data = []
for cf in list(map(ql.as_fixed_rate_coupon, bond.cashflows()))[:-1]:
    data.append({fld: eval(f"cf.{fld}()") for fld in fields})
pd.DataFrame(data)

Here I made a list of the map to avoid the last coupon because the redemption cashflows does not have these additional fields and will through an error.