a_dict = {" name": "sir", "lang": "python", "email": "sir@ gmail.com",
 "website": "www.it.com"}

for k in a_dict():
 print k, a_dict[ k]
 
lang python 
website www.it.com 
name sir 
email sir@ gmail.com

 for k, v in a_dict.items(): 
 print k, v 
 
 lang python 
 website www.it.com 
 name sir email sir@ gmail.com 
  
  
for k, v in a_dict.iteritems():
 print k, v 
 
lang python 
website www.it.com
name sir 
email sir@ gmail.com 

for k in a_dict.keys():
 print k, a_dict[ k]

lang python
website www.it.com
name sir
email sir@ gmail.com

for v in a_dict.values(): 
 print v 
python 
www.it.com 
sir 
sir@ gmail.com 

for v in a_dict.itervalues():
 print v 
python 
www.it.com 
sir sir@ gmail.com