Comparing prompt versions in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a prompt template using LangChain.

LangChain

from langchain.prompts import PromptTemplate

prompt = PromptTemplate(template=[1], input_variables=["name"])

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

AHello, {name}!

B"Hello name!"

C'Hello, name!'

D"Hello, {name}!"

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put the template inside quotes.

Using single quotes without curly braces.

Not including the variable name inside curly braces.

The template must be a string with curly braces around the variable name, and it must be passed as a string literal.

2fill in blank

medium

Complete the code to compare two prompt templates by their template strings.

LangChain

prompt1 = PromptTemplate(template="Hello, {name}!", input_variables=["name"])
prompt2 = PromptTemplate(template="Hi, {name}!", input_variables=["name"])
are_equal = prompt1.[1] == prompt2.[1]

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

Atemplate

Binput_variables

Cformat

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Comparing input_variables instead of template strings.

Using a method name instead of an attribute.

Trying to compare the whole PromptTemplate objects directly.

The template attribute holds the string template, so comparing prompt1.template and prompt2.template checks if the prompt texts are the same.

3fill in blank

hard

Fix the error in the code to correctly format a prompt with a variable.

LangChain

prompt = PromptTemplate(template="Hello, {name}!", input_variables=["name"])
message = prompt.[1](name="Alice")

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

Aformat

Bformat_prompt

Crender

Dgenerate

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'render' which is not a method of PromptTemplate.

Using 'format_prompt' which returns a PromptValue, not a string.

Using 'generate' which is for chains, not templates.

The correct method to fill in variables in a PromptTemplate is 'format', which returns the formatted string.

4fill in blank

hard

Fill both blanks to create a new prompt by combining two templates and formatting it.

LangChain

prompt1 = PromptTemplate(template="Hello, {name}!", input_variables=["name"])
prompt2 = PromptTemplate(template="Welcome to {place}.", input_variables=["place"])
combined_template = f"{prompt1.[1] {prompt2.[2]"
combined_prompt = PromptTemplate(template=combined_template, input_variables=["name", "place"])

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

Atemplate

Bformat

Cinput_variables

Dtext

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'format' instead of 'template' to get the string.

Mixing up input_variables with template strings.

Trying to call methods instead of accessing attributes.

To combine templates, access the 'template' attribute of prompt1 and prompt2. The first blank is for prompt1's template string, the second blank is for prompt2's template string.

5fill in blank

hard

Fill both blanks to create a dictionary comprehension that maps variable names to their prompt templates if the template contains a keyword.

LangChain

prompts = {
    "greet": PromptTemplate(template="Hello, {name}!", input_variables=["name"]),
    "welcome": PromptTemplate(template="Welcome to {place}.", input_variables=["place"]),
    "bye": PromptTemplate(template="Goodbye, {name}!", input_variables=["name"])
}
filtered = {k: v.template for k, v in prompts.items() if "{BLANK_2}}" in v.{{BLANK_2}}

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

A:

Bname

Ctemplate

D,

Attempts:

3 left

💡 Hint

Common Mistakes

Using ',' instead of ':' in dictionary comprehension.

Checking for the wrong keyword.

Accessing a wrong attribute instead of 'template'.

In a dictionary comprehension, the key and value are separated by ':'. We filter templates containing the keyword 'name' in their 'template' attribute.