Using **kwargs in Python: Flexible Keyword Arguments for Dynamic Functions
Now, let's move on to keyword arbitrary arguments or **kwargs. The principle of how **kwargs works is the same as for *args, but it accepts keyword arguments instead of positional ones. **kwargs packs information into a dictionary, so we will work with it accordingly.
1234567def personal_info(name, **kwargs): print(f"Name: {name}") for key, value in kwargs.items(): print(f"{key.capitalize()}: {value}") personal_info("Sarah", surname="Conor", son="John") personal_info("Natalie", cats="3", breed="Maine Coon")
The correct order for the arguments is as follows:
- Positional
- Optional
- *args
- **kwargs
1234def new_func(a, b=0, *args, **kwargs): print(f"a = {a}, b = {b}, args = {args}, kwargs = {kwargs}") new_func(1, 2, "Love", "Hope", name="Anna", age=20)
If you want to unpack dictionaries, you need to use ** before the dictionary variable.
1. What does **kwargs in a Python function signature represent?
2. What will print_details(name="Alice", age=30) output?
3. Given the function definition below, which call is valid?
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Now, let's move on to keyword arbitrary arguments or **kwargs. The principle of how **kwargs works is the same as for *args, but it accepts keyword arguments instead of positional ones. **kwargs packs information into a dictionary, so we will work with it accordingly.
1234567def personal_info(name, **kwargs): print(f"Name: {name}") for key, value in kwargs.items(): print(f"{key.capitalize()}: {value}") personal_info("Sarah", surname="Conor", son="John") personal_info("Natalie", cats="3", breed="Maine Coon")
The correct order for the arguments is as follows:
- Positional
- Optional
- *args
- **kwargs
1234def new_func(a, b=0, *args, **kwargs): print(f"a = {a}, b = {b}, args = {args}, kwargs = {kwargs}") new_func(1, 2, "Love", "Hope", name="Anna", age=20)
If you want to unpack dictionaries, you need to use ** before the dictionary variable.
1. What does **kwargs in a Python function signature represent?
2. What will print_details(name="Alice", age=30) output?
3. Given the function definition below, which call is valid?
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