Few-shot prompt templates in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a few-shot prompt template with examples.

LangChain

from langchain.prompts import FewShotPromptTemplate, PromptTemplate

example_prompt = PromptTemplate(input_variables=["word"], template="Translate '{{word}}' to French: '[1]'")

examples = [{"word": "hello", "translation": "bonjour"}]

few_shot_prompt = FewShotPromptTemplate(
    examples=examples,
    example_prompt=example_prompt,
    input_variables=["word"]
)

Drag options to blanks, or click blank then click option'

Atranslation

Bbonjour

Chello

Dword

Attempts:

3 left

💡 Hint

Common Mistakes

Using the input variable 'word' instead of the output variable 'translation' in the template.

Confusing the example keys with input variables.

The example prompt template uses 'translation' as the variable to fill the French word in the template.

2fill in blank

medium

Complete the code to set the prefix for the few-shot prompt template.

LangChain

few_shot_prompt = FewShotPromptTemplate(
    examples=examples,
    example_prompt=example_prompt,
    prefix=[1],
    input_variables=["word"]
)

Drag options to blanks, or click blank then click option'

ATranslate English to French

BTranslate English to French:

C'Translate English to French:'

D"Translate English to French:"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the prefix string.

Using single quotes inconsistently.

The prefix must be a string literal, so it needs to be enclosed in quotes.

3fill in blank

hard

Fix the error in the code to correctly create a few-shot prompt template with suffix.

LangChain

few_shot_prompt = FewShotPromptTemplate(
    examples=examples,
    example_prompt=example_prompt,
    prefix="Translate English to French:",
    suffix=[1],
    input_variables=["word"]
)

Drag options to blanks, or click blank then click option'

A"Input: {word}\nOutput:"

BInput: {word}\nOutput:

C'Input: {word}\nOutput:'

DInput: {word} Output:

Attempts:

3 left

💡 Hint

Common Mistakes

Not using quotes around the suffix string.

Not escaping the newline character properly.

The suffix must be a string literal with placeholders, so it needs to be enclosed in quotes and use proper escape sequences.

4fill in blank

hard

Fill both blanks to create a few-shot prompt template with example separator and suffix.

LangChain

few_shot_prompt = FewShotPromptTemplate(
    examples=examples,
    example_prompt=example_prompt,
    example_separator=[1],
    suffix=[2],
    input_variables=["word"]
)

Drag options to blanks, or click blank then click option'

A"\n---\n"

B"\n"

C"Input: {word}\nOutput:"

D"\n\n"

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect separator strings without newlines.

Not including the input variable placeholder in the suffix.

The example separator is a string with newlines and dashes, and the suffix includes the input variable placeholder.

5fill in blank

hard

Fill all three blanks to build a few-shot prompt template with prefix, example separator, and suffix.

LangChain

few_shot_prompt = FewShotPromptTemplate(
    examples=examples,
    example_prompt=example_prompt,
    prefix=[1],
    example_separator=[2],
    suffix=[3],
    input_variables=["word"]
)

Drag options to blanks, or click blank then click option'

A"Translate English to French:"

B"\n---\n"

C"Input: {word}\nOutput:"

D"Please translate the following words:"

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up prefix and suffix strings.

Not using proper escape sequences in separator and suffix.

The prefix is a polite instruction, the example separator uses newlines and dashes, and the suffix prompts for input and output.