Challenge
Sensible defaults
Give send_command(cmd, retries=3, timeout=5.0) default values so callers only pass what differs, call it three different ways, then add a new priority parameter without breaking any existing call.
Results for “python def”
Showing 1–10 of 71
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Challenge
Settings with defaults
Build a user's settings by copying the defaults and laying their own values on top with update(), so any setting they haven't changed falls back, then warn about unknown keys instead of saving them.
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Challenge
Shared default list
…log=[]) remembers samples from earlier calls, because the default list is created once and shared. Predict it, prove the calls share one list, fix it with None as the default, then write a function…
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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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Example
Default Parameter Values
Parameters can have default values. Used when argument is not provided.
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Article Python Fundamentals
Python Functions for Beginners
Learn to write your own Python functions, from your first def to return values, default parameters and scope, with runnable examples, common mistakes and six practice projects.
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Example
Creating Simple Functions
Functions group code for reuse. Defining functions with def keyword.
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Challenge
Guard clauses
…same, then add a new docking rule as one more guard with a default parameter.
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Challenge
Missing field
…it, check the keys with in, fix it with get() and a default, then print a list of launches with defaults for any missing field.
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Challenge
Prove the fix
…the fixed add_sample() that would have caught the shared default list, then add checks that a log passed in is still the one that gets the sample, so a "fix" that breaks that can't pass either.
