python3 build opener code example

Example 1: urllib.request headers

try:
    from urllib.request import Request, urlopen  # Python 3
except ImportError:
    from urllib2 import Request, urlopen  # Python 2

req = Request('http://api.company.com/items/details?country=US&language=en')
req.add_header('apikey', 'xxx')
content = urlopen(req).read()

print(content)

Example 2: urllib urlretrieve python 3

#In Python 3.x, the urlretrieve function is located in the urllib.request module:
from urllib.request import urlretrieve