Example
Positional and Keyword Arguments
Difference between positional and keyword arguments. Flexible function calling.
Results for “function arguments”
Showing 1–10 of 21
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Quiz
Python Functions Quiz
Free beginner quiz on Python functions: 15 questions on def, return, arguments, default values, *args, scope and docstrings. Instant answers.
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Challenge
Swapped arguments
…find which parameter got which value, fix it with keyword arguments, then make calls that can't be swapped.
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Challenge
Extra log fields
Extend format_log() from "Log formatter function" with **fields, so any extra keyword arguments are added to the line as key=value pairs, then pass whole dicts of fields into it with ** at the call.
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Example
Functions with Parameters
Parameters allow passing data to functions. Functions become more flexible.
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Example
Variable Number of Arguments *args
Operator * allows accepting any number of positional arguments.
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Example
Variable Keyword Arguments **kwargs
Operator ** allows accepting any number of keyword arguments.
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Challenge
Any number of values
…pass from the database, sometimes just two numbers. A function that wants a list makes every one of those calls a little clumsier than it needs to be. Write an average that takes the values as they…
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Challenge
Sensible defaults
…where waiting is worse than failing. Give the uplink function sensible defaults, then add an option without touching any of its callers. Defaults Give retries a default of 3 and timeout a default of…
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Quiz
Python *args and **kwargs Quiz
…quiz on Python *args and **kwargs: 15 questions on extra arguments, tuples, dictionaries, and * and ** in calls. Instant answers.