try to write your path on this way :
data_path ='C:/Users/amjin/My_datasets/simple-examples/data'
You can change \ with /
or:
In Python 3, you can avoid this by using a raw string:
data_path =r'C:\Users\amjin\My_datasets\simple-examples\data'
The backslash ( \ ) character is used to escape characters that otherwise have a special meaning, such as newline, backslash itself, or the quote character.
example:
in your path: 'C:\Users\amjin\My_datasets\simple-examples\data'
'\a' : ASCII bell makes ringing the bell alert sounds
print ("\a") , result :N/A