This PCAP practice question tests your understanding of modules and packages. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are developing a package 'analytics' that contains subpackages 'stats' and 'ml'. The __init__.py of 'analytics' imports a function 'normalize' from 'analytics.stats'. When a user runs `import analytics`, they get an ImportError. Which change ensures the package imports correctly?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Change the import in analytics/__init__.py to: from .stats import normalize
Option C is correct because it uses an explicit relative import (`from .stats import normalize`), which is the proper way to import from a subpackage within a package. Absolute imports like `from analytics.stats import normalize` can fail if the package's parent directory is not in `sys.path`, which is common when running scripts directly. Relative imports resolve correctly based on the package structure, ensuring the import works regardless of how the package is invoked.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Change the import to: from stats import normalize
Why it's wrong here
This absolute import without package name may fail if stats is not a top-level module.
✗
Add sys.path.append('.') before the import in __init__.py
Why it's wrong here
Modifying sys.path is a hack and not the standard way to resolve intra-package imports.
✓
Change the import in analytics/__init__.py to: from .stats import normalize
Why this is correct
Correct. Relative import with dot refers to the same package.
Related concept
Read the scenario before looking for a memorised answer.
✗
Move the import statement to the stats/__init__.py file
Why it's wrong here
Moving the import changes the intended usage and may not resolve the error.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Python Institute often tests the distinction between absolute and relative imports in packages, and the trap here is that candidates mistakenly think absolute imports like `from analytics.stats import normalize` are always safe, not realizing they depend on the package being installed or the parent directory being in `sys.path`.
Detailed technical explanation
How to think about this question
Under the hood, Python's import system uses `__path__` to resolve subpackage imports. Relative imports (e.g., `from .stats import normalize`) leverage the `__package__` attribute of the importing module to construct the full module name, avoiding reliance on `sys.path`. A subtle behavior is that relative imports only work inside a package (i.e., when `__package__` is set), and they fail with `ImportError: attempted relative import with no known parent package` if the module is run as a script. In real-world scenarios, this is critical for libraries like `numpy` or `pandas`, which use relative imports extensively to maintain portability across different installation environments.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Modules and Packages — This question tests Modules and Packages — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Change the import in analytics/__init__.py to: from .stats import normalize — Option C is correct because it uses an explicit relative import (`from .stats import normalize`), which is the proper way to import from a subpackage within a package. Absolute imports like `from analytics.stats import normalize` can fail if the package's parent directory is not in `sys.path`, which is common when running scripts directly. Relative imports resolve correctly based on the package structure, ensuring the import works regardless of how the package is invoked.
What should I do if I get this PCAP question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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