PromptTemplate basics in LangChain - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a PromptTemplate with a template string.

LangChain

from langchain import PromptTemplate

template = "Hello, my name is {name}."
prompt = PromptTemplate(template=[1], input_variables=["name"])

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

A"Hello, my name is name."

BHello, my name is {name}.

C'Hello, my name is name.'

D"Hello, my name is {name}."

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting to put quotes around the template string.

Using single quotes without curly braces for variables.

The template string must be passed as a string with curly braces for variables, so it needs to be quoted properly.

2fill in blank

medium

Complete the code to specify the input variables for the PromptTemplate.

LangChain

from langchain import PromptTemplate

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

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

A["name"]

B{"name"}

C"name"

Dname

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a string instead of a list.

Using curly braces which create a set, not a list.

input_variables must be a list of strings, so it needs to be in square brackets.

3fill in blank

hard

Fix the error in the code to correctly create a PromptTemplate with two input variables.

LangChain

from langchain import PromptTemplate

template = "My name is {name} and I am {age} years old."
prompt = PromptTemplate(template=template, input_variables=[1])

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

A["name", "age"]

B[name, age]

C{"name", "age"}

D[name, "age"]

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting variable names inside the list.

Using curly braces which create a set, not a list.

input_variables must be a list of strings with variable names quoted.

4fill in blank

hard

Fill both blanks to create a PromptTemplate and format it with variables.

LangChain

from langchain import PromptTemplate

prompt = PromptTemplate(template=[1], input_variables=["animal", "sound"])
result = prompt.format(**[2])

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

A"The {animal} goes {sound}."

B{"animal": "dog", "sound": "woof"}

C"The animal goes sound."

D{"animal", "dog", "sound", "woof"}

Attempts:

3 left

💡 Hint

Common Mistakes

Passing a set instead of a dictionary to format.

Not using curly braces in the template string.

The template string must have placeholders, and format expects a dictionary with keys matching input_variables.

5fill in blank

hard

Fill all three blanks to create a PromptTemplate, format it, and print the result.

LangChain

from langchain import PromptTemplate

prompt = PromptTemplate(template=[1], input_variables=["city", "weather"])
result = prompt.format(**[2])
print([3])

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

A"The weather in {city} is {weather}."

B{"city": "Paris", "weather": "sunny"}

Cresult

D"The city is {city} and weather is {weather}."

Attempts:

3 left

💡 Hint

Common Mistakes

Printing the dictionary instead of the formatted result.

Not using curly braces in the template string.

The template string uses placeholders, format gets a dictionary, and print outputs the formatted string.