Party Time Problem¶
Whenever your friends John and Judy visit you together, y’all have a party 
. Given a DataFrame with 10
rows representing the next 10 days of your schedule and whether John and Judy are scheduled to make an appearance,
insert a new column called days_til_party that indicates how many days until the next party.
import numpy as np
import pandas as pd
generator = np.random.default_rng(123)
df = pd.DataFrame({
'john': generator.choice([True, False], size=10, replace=True),
'judy': generator.choice([True, False], size=10, replace=True)
})
print(df)
# john judy
# 0 True True
# 1 False False
# 2 False True
# 3 True False
# 4 False True
# 5 True True
# 6 True False
# 7 True False
# 8 True False
# 9 True False
days_til_party should be 0 on days when a party occurs, 1 on days when a party doesn’t occur but will occur the
next day, etc.