mirror of https://github.com/01-edu/public.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
54 lines
1.3 KiB
54 lines
1.3 KiB
2 years ago
|
## Merge two
|
||
|
|
|
||
|
|
One very useful data structure in Python are the dictionaries, in this exercise we will start to familiarize and use them.
|
||
|
|
|
||
|
|
### Instructions
|
||
|
|
|
||
|
|
Create a file `merge_two.py` which will have a function named `merge_two()`. This function will accept two dictionaries and return a third one which will be the merge of the two inputs.
|
||
|
|
|
||
|
|
Here is the prototype of the function:
|
||
|
|
|
||
|
|
```python
|
||
|
|
def merge_two(first_dict, second_dict):
|
||
|
|
# this is a function,
|
||
|
|
# write your code here
|
||
|
|
```
|
||
|
|
|
||
|
|
### Usage
|
||
|
|
|
||
|
|
Here is a possible code to test your function. Put it in another file (ex: `test.py`):
|
||
|
|
|
||
|
|
```python
|
||
|
|
from merge_two import merge_two
|
||
|
|
|
||
|
|
first = {
|
||
|
|
"Bob": 36,
|
||
|
|
"Louise": 23,
|
||
|
|
"Lea": 34
|
||
|
|
}
|
||
|
|
second = {
|
||
|
|
"Louise": 44,
|
||
|
|
"Romolo": 30,
|
||
|
|
"Lea": 22
|
||
|
|
}
|
||
|
|
print(merge_two(first, second))
|
||
|
|
```
|
||
|
|
|
||
|
|
Run your test file with the following command:
|
||
|
|
|
||
|
|
```console
|
||
|
|
$ python3 test.py
|
||
|
|
{'Bob': 36, 'Louise': 44, 'Lea': 22, 'Romolo': 30}
|
||
|
|
$
|
||
|
|
```
|
||
|
|
|
||
|
|
### Hints
|
||
|
|
|
||
|
|
- If a key is repeated in both dictionaries the value retained will be the one in `second_dict`.
|
||
|
|
|
||
|
|
- There is different ways to merge dictionaries, take the time to understand the differences in between those techniques and try more than one technique to better retain it.
|
||
|
|
|
||
|
|
### References
|
||
|
|
|
||
|
|
- [Merging dictionaries in Python](https://www.geeksforgeeks.org/python-merging-two-dictionaries/)
|