Sharing data between tasks effectively in Apache Airflow - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to push data from one task to XCom in Airflow.

Apache Airflow

def push_function(ti):
    ti.[1](key='sample_key', value='Hello from task')

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

Apush_xcom

Bxcom_push

Cxcom_pull

Dsend_xcom

Attempts:

3 left

💡 Hint

Common Mistakes

Using xcom_pull instead of xcom_push to send data.

Using incorrect method names like push_xcom or send_xcom.

The xcom_push method is used to send data from a task to XCom in Airflow.

2fill in blank

medium

Complete the code to pull data from XCom in Airflow.

Apache Airflow

def pull_function(ti):
    value = ti.[1](key='sample_key', task_ids='push_task')
    print(value)

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

Axcom_push

Bget_xcom

Cpull_xcom

Dxcom_pull

Attempts:

3 left

💡 Hint

Common Mistakes

Using xcom_push instead of xcom_pull to get data.

Using incorrect method names like pull_xcom or get_xcom.

The xcom_pull method is used to retrieve data from XCom in Airflow.

3fill in blank

medium

Complete the code to push data to XCom in Airflow.

Apache Airflow

def push_function(ti):
    ti.[1]('sample_key', 'Data to share')

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

Axcom_push

Bxcom_pull

Cpush_xcom

Dsend_xcom

Attempts:

3 left

💡 Hint

Common Mistakes

Using xcom_pull instead of xcom_push to send data.

Using incorrect method names like push_xcom or send_xcom.

The xcom_push method is used to send data from a task to XCom in Airflow.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that shares only even numbers via XCom.

Apache Airflow

result = {num: num[1]2 for num in range(1, 6) if num [2] 2 == 0}

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

A**

B%

C//

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect operators like + or // in the comprehension.

Using wrong condition to filter even numbers.

The expression num**2 squares the number, and num % 2 == 0 filters even numbers.

5fill in blank

hard

Fill all three blanks to create a dictionary comprehension that shares uppercase keys with values greater than zero via XCom.

Apache Airflow

result = { [1]: [2] for [3], v in data.items() if v > 0}

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

Ak.upper()

Bv

Ck

Dv.upper()

Attempts:

3 left

💡 Hint

Common Mistakes

Using v.upper() which is invalid if values are not strings.

Mixing up keys and values in the comprehension.

The key is converted to uppercase with k.upper(), the value is v, and the loop variable is k.