0x00-python_variable_annotations

0x00. Python - Variable Annotations

About

• Dynamic vs. static typing
• Type hints
• Genetic types
• mypy checker

Tasks

0. Type-annotated function add that takes a float a and a float b as arguments and returns their sum as a float.
   • 0-add.py
1. Type-annotated function concat that takes a string str1 and a string str2 as arguments and returns a concatenated string
   • 1-concat.py
2. Type-annotated function floor which takes a float n as argument and returns the floor of the float.
   • 2-floor.py
3. Type-annotated function to_str that takes a float n as argument and returns the string representation of the float
   • 3-to_str.py
4. Variable annotations
   • 4-define_variables.py
5. Type-annotated function sum_list which takes a list input_list of floats as argument and returns their sum as a float.
   • 5-sum_list.py
6. Type-annotated function sum_mixed_list which takes a list mxd_lst of integers and floats and returns their sum as a float.
   • 6-sum_mixed_list.py
7. Type-annotated function to_kv that takes a string k and an int OR float v as arguments and returns a tuple. The first element of the tuple is the string k. The second element is the square of the int/float v and should be annotated as a float.
   • 7-to_kv.py
8. Type-annotated function make_multiplier that takes a float multiplier as argument and returns a function that multiplies a float by multiplier.
   • 8-make_multiplier.py
9. Function annotations
   • 9-element_length.py
10. Duck-type annotations
    • 100-safe_first_element.py
11. Type aliases
    • 101-safely_get_value.py
12. Type Checking
    • 102-type_checking.py