StrOutputParser for text in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to import the StrOutputParser class from langchain_core.output_parsers.

LangChain

from langchain.output_parsers import [1]

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AStrOutputParser

BTextParser

COutputParser

DStringParser

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong class name like TextParser or OutputParser.

Trying to import from the wrong module.

The StrOutputParser class is imported from langchain.output_parsers to parse string outputs.

2fill in blank

medium

Complete the code to create an instance of StrOutputParser.

LangChain

parser = [1]()

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AStringParser

BStrOutputParser

CTextParser

DOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Instantiating a wrong class name.

Forgetting the parentheses to create an instance.

To create a parser for string outputs, instantiate StrOutputParser.

3fill in blank

hard

Fix the error in calling the parse method on the parser instance.

LangChain

result = parser.[1]('some text output')

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Aparse

Bparse_text

Cparse_output

Dparse_string

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect method names like parse_text or parse_output.

Trying to call a method that does not exist.

The method to parse text output in StrOutputParser is parse.

4fill in blank

hard

Fill both blanks to define a function that uses StrOutputParser to parse given text.

LangChain

def parse_text_output(text):
    parser = [1]()
    return parser.[2](text)

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AStrOutputParser

Bparse_text

Cparse

DOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong method names or class names.

Forgetting to instantiate the parser before calling parse.

The function creates a StrOutputParser instance and calls its parse method on the input text.

5fill in blank

hard

Fill all three blanks to create a parser, parse text, and print the result.

LangChain

parser = [1]()
text = 'Hello, LangChain!'
result = parser.[2]([3])
print(result)

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AStrOutputParser

Btext

Cparse

DOutputParser

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up variable and method names.

Using wrong class or method names.

This code creates a StrOutputParser instance, parses the variable text using the parse method, and prints the result.