Data Container Conclusion

Properties and usage

Different choice of iterating method

Same function that apply on all data container

1. Get min / max value & length / number of items on data container

universal-function-for-data-container.py

# Define all the data container
# list 
dc_list = [0, 1, 2, 3, 4]
# tuple 
dc_tuple = (0, 1, 2, 3, 4)
# set 
dc_set = {0, 1, 2, 3, 4}
# str 
dc_str = "abcde"
# dict
dc_dict = {
    "k1": 0,
    "k2": 1,
    "k3": 2,
    "k4": 3,
    "k5": 4,
}

data_container_list = [dc_list, dc_tuple, dc_set, dc_str, dc_dict]

a. Length of the data container

# Get the length of all data container
for list_ in data_container_list:
    print(len(list_))

Output:

5
5
5
5
5

b. Minimum value / element in data conatiner

# Get the min value of all data container
for list_ in data_container_list:
    print(min(list_))

Output:

0
0
0
a
k1

c. Maximum value / element in data conatiner

# Get the max value of all data container
for list_ in data_container_list:
    print(max(list_))

Output:

4
4
4
e
k5

2. Data container type conversion

• using list() to convert items to list type
• using str() to convert items to string

Example: Convert dictionary type to tuple.

# convert data type
# dict > tuple (only remains key)
dict_2_tuple = tuple(dc_dict)
print(dict_2_tuple)
print(type(dict_2_tuple))

Output:

('k1', 'k2', 'k3', 'k4', 'k5')
<class 'tuple'>

Info

All of types cannot convert (except: dict itself) to be dictionary, type as at the time converting it only received the key, without value.

3. Sorting the element of data container

# Sorted - Normal
for list_ in data_container_list:
    print(sorted(list_))

# Sorted Reversed
for list_ in data_container_list:
    print(sorted(list_, reverse=True))

Output:

[0, 1, 2, 3, 4]
[0, 1, 2, 3, 4]
[0, 1, 2, 3, 4]
['a', 'b', 'c', 'd', 'e']
['k1', 'k2', 'k3', 'k4', 'k5']
[4, 3, 2, 1, 0]
[4, 3, 2, 1, 0]
[4, 3, 2, 1, 0]
['e', 'd', 'c', 'b', 'a']
['k5', 'k4', 'k3', 'k2', 'k1']

Info

After sorting the data, all of the data will be saved as a new list, [].

Conclusion for universal fucntion that apply for all data container