args, **kwargs & Unpacking in Python
From the Python cheat sheet · Functions · verified Jul 2026
*args, **kwargs & Unpacking
Accept variable arguments and unpack iterables into function calls.
python
# *args — variable positional arguments
def total(*nums):
return sum(nums)
total(1, 2, 3) # 6
# **kwargs — variable keyword arguments
def config(**options):
for k, v in options.items():
print(f"{k}: {v}")
config(host="localhost", port=5432)💡 *args becomes a tuple, **kwargs becomes a dict inside the function
⚡ Use *list and **dict to unpack when calling functions
📌 Parameter order: positional, *args, keyword defaults, **kwargs
🟢 The *args/**kwargs pattern is essential for decorators and wrapper functions
argskwargsunpacking
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