Track 11 · Lesson 4 of 12
String representations
Control how objects look when printed, inspected and put in f-strings with __str__ and __repr__.
You will be able to
- Explain why a plain object prints as <__main__.Parcel object at 0x…>
- Write __str__ to give an object a readable, user-facing text form
- Write __repr__ to give an unambiguous developer-facing form, following the ClassName(...) convention
- Predict which representation print(), f-strings, the REPL and containers use
Included with a Formula Quest membership
It has 4 graded exercises with feedback, hints and solutions. Python Quest is included in Formula Quest memberships that cover Python; membership and billing are managed on Formula Quest.
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Tracks 1 and 2, the first lesson of every track, the playground and the dataset library are free.