Nested if vs. if statement with two conditions behaves differently:

I have a dictionary my_dict1, which contains a key 'Error' I also have another dictionary my_dict2 that either has multiple keys, or is empty. I want to have an if statement that checks whether my_dict1['Error'] is False and check if my_dict2 has any content in it. The code is as follows:

my_dict1 = {'Error': False}
my_dict2 = {'somekey': True}

if my_dict1['Error'] == False:
    if len(my_dict2) > 0:
        print('ok')
else:
    print('no')

This code results in 'ok' as expected.

if my_dict1['Error'] == False & len(my_dict2)> 0:
    print('ok')
else:
    print('no')

This results in 'no'. Am I understanding the & statement wrong?