Copy a Dictionary
You cannot copy a dictionary simply by typing dict2 = dict1
, because: dict2
will only be a reference to dict1
, and changes made in dict1
will automatically also be made in dict2
.
There are ways to make a copy, one way is to use the built-in Dictionary method copy()
.
Example
Make a copy of a dictionary with the copy()
method:
thisdict = {
“brand”: “Ford”,
“model”: “Mustang”,
“year”: 1964
}
mydict = thisdict.copy()
print(mydict)
Output:
{‘brand’: ‘Ford’, ‘model’: ‘Mustang’, ‘year’: 1964}
Another way to make a copy is to use the built-in function dict()
.
Example
Make a copy of a dictionary with the dict()
function:
thisdict = {
“brand”: “Ford”,
“model”: “Mustang”,
“year”: 1964
}
mydict = dict(thisdict)
print(mydict)
Output:
{‘brand’: ‘Ford’, ‘model’: ‘Mustang’, ‘year’: 1964}