CommaSeparatedListOutputParser in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the CommaSeparatedListOutputParser from langchain.output_parsers.

LangChain

from langchain.output_parsers import [1]

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AListOutputParser

BCommaSeparatedListOutputParser

CCSVOutputParser

DSimpleOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Importing a wrong parser class that does not handle comma-separated lists.

Misspelling the class name.

You need to import CommaSeparatedListOutputParser to use it for parsing comma-separated lists.

2fill in blank

medium

Complete the code to create an instance of CommaSeparatedListOutputParser.

LangChain

parser = [1]()

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AListOutputParser

BSimpleOutputParser

CCSVOutputParser

DCommaSeparatedListOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Using a different parser class that does not parse comma-separated lists.

Forgetting the parentheses to create an instance.

Instantiate CommaSeparatedListOutputParser to parse outputs as comma-separated lists.

3fill in blank

hard

Fix the error in the code to parse a string of comma-separated values using the parser's parse method.

LangChain

result = parser.[1]('apple, banana, cherry')

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Aparse_csv

Bparse_list

Cparse

Dparse_string

Attempts:

3 left

💡 Hint

Common Mistakes

Using a non-existent method name like parse_list or parse_csv.

Confusing method names from other parsers.

The correct method to parse the output string is parse.

4fill in blank

hard

Fill both blanks to create a parser and parse a string of fruits.

LangChain

parser = [1]()
fruits = parser.[2]('mango, peach, plum')

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ACommaSeparatedListOutputParser

Bparse

Cparse_list

DSimpleOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong method names or parser classes.

Forgetting to instantiate the parser before parsing.

Create an instance of CommaSeparatedListOutputParser and call its parse method to get the list.

5fill in blank

hard

Fill all three blanks to parse a string and print the resulting list.

LangChain

parser = [1]()
fruits = parser.[2]('kiwi, grape, melon')
print([3])

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ACommaSeparatedListOutputParser

Bparse

Cfruits

Dresult

Attempts:

3 left

💡 Hint

Common Mistakes

Printing a variable that does not exist.

Using wrong method or class names.

Instantiate the parser, parse the string, and print the variable holding the list.