Compare two columns and values with array function

Power Query variant:

let
    Source = Table.RemoveColumns(
        if Table.RowCount( Table1 ) >= Table.RowCount( Table2 )
        then Table.NestedJoin( Table1, {"name", "value"}, Table2, {"name", "value"}, "MERGED_TABLE", JoinKind.LeftAnti )
        else Table.NestedJoin( Table2, {"name", "value"}, Table1, {"name", "value"}, "MERGED_TABLE", JoinKind.LeftAnti ),
        {"MERGED_TABLE"}
    )
in
    Source

As variant with Power Query

let
    a = Table.AddColumn( 
        Table.RemoveMatchingRows( Table1, Table.ToRecords(Table2) ),
        "Table", each "Table1"),
    b = Table.AddColumn( 
        Table.RemoveMatchingRows( Table2, Table.ToRecords(Table1) ),
        "Table", each "Table2"),
    c = a & b
in
    c

How about Python

# Sample tables as dictionaries
table1 = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}
table2 = {'key1': 'value1', 'key2': 'different_value2', 'key4': 'value4'}

# Function to find differences between two tables
def find_differences(table1, table2):
    differences = []
    
    # Check keys and values in table1
    for key in table1:
        if key not in table2:
            differences.append((key, table1[key], 'Key not in table2'))
        elif table1[key] != table2[key]:
            differences.append((key, table1[key], table2[key]))
    
    # Check for keys in table2 that are not in table1
    for key in table2:
        if key not in table1:
            differences.append((key, 'Key not in table1', table2[key]))
    
    return differences

# Finding and printing differences
differences = find_differences(table1, table2)
for diff in differences:
    print(f"Key: {diff[0]}, Table1: {diff[1]}, Table2: {diff[2]}")