Fundamentals of PyTeal

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Quiz: Introduction to Pyteal

1. What is PyTeal?

Algorand smart contract language that the AVM understands and executesA Python module that lets you write Algorand smart contract with PythonHigh-level Python Algorand smart contract languageHigh-level Algorand smart contract language with Python like Syntax

2. How does PyTeal work?

TEAL -> PyTeal -> AVMPyTeal -> TEAL -> AVMPyTeal -> Bytecode -> AVMPyTeal -> AVM

3. What web app do you use to deploy/call Algorand smart contracts?

RemixTruffle SuiteDappflowDappSlow

4. What is not an OnComplete Call?

Opt_inCreateNoOpClose_out

5. What does the router NOT do?

Tell the smart contract what to do based on the type of app call it receives.Compile code to TEALGenerate ABI jsonConnect the smart contract to a node running Algorand blockchain

6. How do you register a method to the router?

With @router.method decoratorWith @app.external decoratorThe router automatically detects and register the methods defined in the same fileAdd a list of method names when instantiating the Router class

7. How would you describe an Algorand smart contract written with PyTeal?

It is a smart contract written with Python native expressionsIt is a collection of PyTeal expressions inside a Python classIt is a tree of PyTeal expressions consisting of other PyTeal ExpressionsIt is a collection of Python native expressions mixed with PyTeal Expressions

8. What is a common error when you use Python native expressions in a PyTeal expression tree?

urllib.error.URLError: <urlopen error [Errno 61] Connection refused>AttributeError: ‘int’ object has no attribute ‘type_of’pyteal.TealTypeError: TealType.uint64 while expected TealType.bytesSyntaxError: named arguments must follow bare *

PyTeal Expressions
AVM Data Types

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Introduction to PyTeal0/4 completed
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