Filter rows using multiple conditions to create a new column - pandas

Question

I have a dataframe that looks something like this:
df = pd.DataFrame({
'A Code': ['123', '234', '345', '234', '789', '345'],
'B Code': ['345', '123', '234', '123', '567', '567'],
'C Code': ['678', '123', '456', '234', '321', '789'],
'X Code': ['987', '765', '432', '876', '321', '765'],
'Y Code': ['765', '876', '987', '765', '432', '543'],
'H Code 1': ['EF', 'AB', 'GH', 'CD', 'GH', 'CD'],
'H Code 2': ['AB', 'CD', 'CD', 'AB', 'CD', 'GH']
})
A Code B Code C Code X Code Y Code H Code 1 H Code 2
0 123 345 678 987 765 EF AB
1 234 123 123 765 876 AB CD
2 345 234 456 432 987 GH CD
3 234 123 234 876 765 CD AB
4 789 567 321 321 432 GH CD
5 345 567 789 765 543 CD GH
The following conditions indicate that a row represents an apple:
1) H Code of 'AB' or 'EF'
OR
2) X or Y Code of '765'
OR
3) A, B or C Code of '123' and X or Y Code of '987'
OR
4) A, B or C Code of '234' or '345' and X or Y code of 876
I want to create a column that labels rows that meet any of the conditions above as apples and those that don't as bananas. So something like this:
A Code B Code C Code X Code Y Code H Code 1 H Code 2 Fruit
0 123 345 678 987 765 EF AB apple
1 234 123 123 765 876 AB CD apple
2 345 234 456 432 987 GH CD banana
3 234 123 234 876 765 CD AB apple
4 789 567 321 321 432 GH CD banana
5 345 567 789 765 543 CD GH apple
Thank you!

Answer 1

Use individual boolean masks for each condition and group them according your operators:
m1 = df[['H Code 1', 'H Code 2']].isin(['AB', 'EF']).any(axis=1)
m2 = df[['X Code', 'Y Code']].eq('765').any(axis=1)
m3 = df[['A Code', 'B Code', 'C Code']].eq(123).any(axis=1)
m4 = df[['X Code', 'Y Code']].eq('987').any(axis=1)
m5 = df[['A Code', 'B Code', 'C Code']].isin([234, 345]).any(axis=1)
m6 = df[['X Code', 'Y Code']].eq('876').any(axis=1)
m = m1 | m2 | (m3 & m4) | (m5 & m6)
df['Fruit'] = np.where(m, 'apple', 'banana')
Output:
>>> df
A Code B Code C Code X Code Y Code H Code 1 H Code 2 Fruit
0 123 345 678 987 765 EF AB apple
1 234 123 123 765 876 AB CD apple
2 345 234 456 432 987 GH CD banana
3 234 123 234 876 765 CD AB apple
4 789 567 321 321 432 GH CD banana
5 345 567 789 765 543 CD GH apple