import pandas as pd

df1 = pd.read_excel('output.xlsx')
df2 = pd.read_excel('Amazon CDW5_Devices IO.xlsx')

print('=== Sample comparisons ===')
dev_rows = df1[df1['Description'].str.upper() == 'DEVICE'].head(20)

for idx, row in dev_rows.iterrows():
    src = df2[(df2['Controller name'] == row['Controller name']) & 
              (df2['Signal type'] == row['Signal type']) & 
              (df2['Assigned device'] == row['Assigned device'])]
    if not src.empty:
        print(f"Device: {row['Assigned device']}")
        print(f"  Output desc: {row['Description']}")
        print(f"  Source desc: {src.iloc[0]['Description']}")
        print()
    else:
        # Try partial match
        src = df2[(df2['Assigned device'] == row['Assigned device'])]
        if not src.empty:
            print(f"Device: {row['Assigned device']}")
            print(f"  Output desc: {row['Description']}")
            print(f"  Source desc (found by device only): {src.iloc[0]['Description']}")
            print()