Challenge
Shared default list
add_sample(sample, 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…
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Challenge
Duplicate events
Print each capsule event once, keeping the first copy, by checking every ID against a set of IDs already seen, then report which IDs came in more than once.
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Challenge
Assignment in a condition
An oxygen check uses = instead of == and has a line that isn't indented, so Python refuses to run it. Predict what happens, fix both errors one after the other, then write an if/else check yourself.
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Challenge
Telemetry report
Extend the parser from "Parse a telemetry line" to read three readings from a multi-line feed, print each as one row, then turn them into a report with a header and aligned columns.
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Challenge
Status message crash
A status line crashes with a TypeError because it joins text and a number with +. Predict it, read the error, fix it with str(), then build a docking status line.
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Example
Returning Dictionary or List
Functions can return complex data structures like dictionaries or lists.
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Example
Variable Keyword Arguments **kwargs
Operator ** allows accepting any number of keyword arguments.
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Example
Variable Number of Arguments *args
Operator * allows accepting any number of positional arguments.
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Example
Logical Operators and, or, not
Combining conditions with logical operators and, or and not.
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Example
If-else Statement
The else block executes when if condition is not met. Two possible paths.