# Defining dictionaries

dict1 = {}        # empty
dict2 = { "john" : "123-4567",
          "mary" : "333-3333",
          "jack" : "345-6666",
          "amos" : "222-8888",
          "jane" : "444-5555"  }

# Loop through a dict

for k in dict2:
   print( k, dict2[k] )
print()

# Access
print( "john: ", dict2["john"] )
print( "jack: ", dict2["jack"] )
print()

# Insert
dict2["new"] = "999-9999"

for k in dict2:
   print( k, dict2[k] )
print()

# Delete
del dict2["new"]

for k in dict2:
   print( k, dict2[k] )
print()

# Update
dict2["amos"] = "000-0000"

for k in dict2:
   print( k, dict2[k] )
print()