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Python Online Test

The Python Online Test evaluates a candidate's ability to use Python data structures (strings, lists, dictionaries, tuples), manage files, handle exceptions and structure code using Object-Oriented Programming principles. The Python coding assessment uses code-tracing and scenario-based MCQ questions to evaluate hands-on Python coding skills.

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Screen candidates with a 40 mins test

Test duration:  40 mins
Difficulty level:  Moderate
Availability:  Ready to use
Questions:
  • 8 Python MCQs
  • 1 Python Coding Question
Covered skills:
Python fundamentals (variables; loops; functions)
Data Structures (lists; tuples; dictionaries; sets)
Errors and exceptions handling
Reading and writing files
Scripting and web scraping
In-built functions and modules
Object-Oriented Programming (OOP)
Functional programming
Accessing and manipulating databases
Debugging tools to figure out bugs in code
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Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

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Use the Python Test to shortlist qualified candidates

The Python Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Able to efficiently handle exceptions and errors
  • Proficient in working with Python data structures (lists, tuples, dictionaries, sets)
  • Skilled in reading and writing files using Python
  • Capable of scripting and web scraping with Python
  • Knowledgeable in using in-built functions and modules in Python
  • Familiar with Object-Oriented Programming (OOP)
  • Able to apply functional programming concepts in Python
  • Competent in accessing and manipulating databases with Python
  • Proficient in using debugging tools to identify and fix code issues
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Screen candidates with the highest quality questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this Python Online Test will be non-googleable.

🧐 Question

Medium

ZeroDivisionError and IndexError
Exceptions
Solve
What will the following Python code output?
 image

Medium

Session
File Handling
Dictionary
Solve
 image
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file:
Tony,10
Stark,12
Black,25
Your program should ignore a non-conforming line like this one.
Stark,3
Widow,6
Widow,14
The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 }
What should replace the CODE TO FILL line to complete the function?
 image

Medium

Max Code
Arrays
Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
 image

Medium

Recursive Function
Recursion
Dictionary
Lists
Solve
Consider the following Python code:
 image
In the above code, recursive_search is a function that takes a dictionary (data) and a target key (target) as arguments. It searches for the target key within the dictionary, which could potentially have nested dictionaries and lists as values, and returns the value associated with the target key. If the target key is not found, it returns None.

nested_dict is a dictionary that contains multiple levels of nested dictionaries and lists. The recursive_search function is then called with nested_dict as the data and 'target_key' as the target.

What will the output be after executing the above code?

Medium

Stacking problem
Stack
Linkedlist
Solve
What does the below function ‘fun’ does?
 image
A: Sum of digits of the number passed to fun.
B: Number of digits of the number passed to fun.
C: 0 if the number passed to fun is divisible by 10. 1 otherwise.
D: Sum of all digits number passed to fun except for the last digit.

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Hard

Find the customer with the most spend 2
JOIN
GROUP BY
ORDER BY
Solve
Given details of customers, products, and sales, write a SQL query to find the customer with the highest spend. The customer with the highest spend is the one who has spent the most money on purchases. The query should return the full name of the customer and the total amount spent by the customer rounded off to the nearest integer.
full_name is the concatenation of first_name and last_name separated by a space. Eg:
first_name = 'Alice', last _name = 'Brown' => full_name = 'Alice Brown'
You can assume that there will always be non-empty first_name and non-empty last_name entries for all customers in the table.
 image

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

ZeroDivisionError and IndexError
Exceptions

2 mins

Python
Solve

Medium

Session
File Handling
Dictionary

2 mins

Python
Solve

Medium

Max Code
Arrays

2 mins

Python
Solve

Medium

Recursive Function
Recursion
Dictionary
Lists

3 mins

Python
Solve

Medium

Stacking problem
Stack
Linkedlist

4 mins

Python
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Hard

Find the customer with the most spend 2
JOIN
GROUP BY
ORDER BY

10 mins

SQL
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
ZeroDivisionError and IndexError
Exceptions
Python
Medium2 mins
Solve
Session
File Handling
Dictionary
Python
Medium2 mins
Solve
Max Code
Arrays
Python
Medium2 mins
Solve
Recursive Function
Recursion
Dictionary
Lists
Python
Medium3 mins
Solve
Stacking problem
Stack
Linkedlist
Python
Medium4 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Find the customer with the most spend 2
JOIN
GROUP BY
ORDER BY
SQL
Hard10 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve

Test candidates on core Python Hiring Test topics

Python fundamentals: Python fundamentals include the foundational concepts of the Python programming language, such as variables, loops, and functions. These are essential skills that every developer should possess to effectively write, understand, and modify Python code.

Data Structures: Data structures are the building blocks of programming, empowering developers to store, organize, and manipulate data efficiently. This skill measures an individual's understanding of essential data structures in Python, such as lists, tuples, dictionaries, and sets.

Errors and exceptions handling: Errors and exceptions handling is crucial in programming as it allows developers to identify and resolve issues in their code. This skill assesses an individual's ability to handle various error scenarios, ensuring the code functions as intended and preventing unexpected errors from crashing the program.

Reading and writing files: Reading and writing files is an essential skill in Python as it enables developers to interact with external data sources, storing and retrieving data from files. This skill evaluates an individual's capability to read and write data to files using Python's file handling capabilities.

Scripting and web scraping: Scripting and web scraping involve automating tasks and extracting data from websites using Python. This skill demonstrates an individual's proficiency in using Python libraries and frameworks to interact with web elements, gather relevant data, and automate processes.

In-built functions and modules: In-built functions and modules are pre-defined functionalities and libraries within Python that offer convenient and efficient solutions to common programming problems. This skill measures an individual's knowledge and utilization of Python's built-in functions and modules to streamline development processes.

Object-Oriented Programming (OOP): Object-Oriented Programming is a programming paradigm that organizes code into objects, allowing for more modular and maintainable codebases. This skill evaluates an individual's understanding of OOP concepts, such as classes, objects, inheritance, and polymorphism, enabling them to design and implement Python programs using OOP principles.

Functional programming: Functional programming is a programming style that emphasizes the use of pure functions, immutability, and higher-order functions. This skill assesses an individual's ability to apply functional programming principles in Python, enabling them to write cleaner, concise, and modular code.

Accessing and manipulating databases: Accessing and manipulating databases is a crucial skill for developers working with data-driven applications. It involves connecting to databases, executing queries, and manipulating data using Python. This skill evaluates an individual's proficiency in using Python's database libraries to interact with relational and non-relational databases.

Debugging tools to figure out bugs in code: Debugging tools are essential for identifying and fixing errors and bugs in code. This skill measures an individual's ability to effectively use Python's debugging tools, such as the built-in debugger and logging, to identify and resolve issues in code, ensuring its correctness and reliability.

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Have questions about the Python Hiring Test?

How does pricing work?

You can check out our pricing plans.

Can I customize the test?

Yes, absolutely. Custom assessments are set up within 48 hours based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test. You can also customize a test by uploading your own questions.

Can I combine multiple skills into one test?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

What roles can I use the Python Test for?

Here are few roles for which we recommend this test:

  • Python Developer
  • Software Developer (Python)
  • Senior Python Developer
  • Data Engineer (Python)
  • Data Scientist (Python)
  • Quality Assurance Engineer (Python)
  • Senior Software Engineer (Python)
  • DevOps Engineer (Python)
Can I see a sample test, or do you have a free trial?

Yes!

The free trial includes one sample technical test (Java/ JavaScript) and one sample aptitude test that you will find in your dashboard when you sign up. You can use it to review the quality of questions and the candidate experience of giving a test on Adaface.

You can preview any of the 500+ tests and see the sample questions to decide if it would be a good fit for your requirements.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

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