In the unittest framework, what is the significance of the setUpClass method in a test case class?
- It is called after all test methods in the test case class have run.
- It is called after the tearDown method in the test case class.
- It is called before any test methods in the test case class are run.
- It is called before each test method in the test case class.
In the unittest framework, the setUpClass method is called once before any test methods in the test case class are run. It's typically used to set up resources or configurations that are shared by all test methods in the class.
In web development, ____ is a technique used to update a web page without reloading it, which can be implemented using JavaScript and integrated with Python back-end.
- AJAX
- CSS
- HTML5
- JSON
In web development, AJAX (Asynchronous JavaScript and XML) is a technique used to update web content without the need to reload the entire page. It enables seamless interaction between the client and server, often implemented using JavaScript and integrated with Python back-end using APIs.
In Seaborn, how can you visualize the linear relationship between two variables?
- Heatmap
- Pair plot
- Regression plot
- Scatter plot
To visualize the linear relationship between two variables in Seaborn, you can use a regression plot. It shows a scatter plot of the data points with a regression line, helping you assess the strength and direction of the linear relationship.
In Seaborn, the ____ function is used to plot univariate or bivariate distributions of observations.
- distplot
- plot_distribution
- scatterplot
- univariate
In Seaborn, you use the distplot function to plot univariate distributions of observations. It's a versatile function that can display histograms, kernel density estimates, and more.
In Seaborn, which function is used to create a scatter plot with the possibility of several semantic groupings?
- sns.boxplot()
- sns.lineplot()
- sns.pairplot()
- sns.scatterplot()
In Seaborn, the sns.scatterplot() function is used to create scatter plots with the possibility of several semantic groupings. It allows you to color and style the points based on additional variables, making it useful for exploring relationships in complex datasets.
In the context of data visualization, ____ is a Python library that is based on Matplotlib and provides a high-level interface for drawing attractive and informative statistical graphics.
- NumPy
- Scikit-learn
- Seaborn
- TensorFlow
In the context of data visualization in Python, Seaborn is a library based on Matplotlib that simplifies the creation of statistical graphics, making them more attractive and informative.
In the pytest framework, how do you mark a test function so that it is not executed by the test runner?
- @pytest.disable()
- @pytest.exclude()
- @pytest.ignore()
- @pytest.skip("Test not ready yet")
In pytest, you can use the @pytest.skip("Reason") decorator to mark a test function so that it is not executed. You can provide a reason for skipping for documentation purposes.
In Python, the ____ method of a unittest TestCase is run before each test method is executed.
- init
- setUp
- start
- tearDown
In Python's unittest framework, the setUp method is executed before each test method. It is typically used to set up any preconditions or resources needed for the tests.
In Python, the ____ statement can be used to assert that a certain expression is true, typically used for debugging purposes.
- assert
- debug
- validate
- verify
The assert statement in Python is used to check whether a given expression is true. If the expression is false, it raises an AssertionError exception, which is helpful for debugging and ensuring that assumptions in your code hold true.
In Python, the ____ statement is used to interrupt loop iteration and jump to the next iteration of the loop.
- break
- continue
- pass
- return
In Python, the 'break' statement is used to interrupt loop iteration and exit the loop prematurely. When 'break' is encountered inside a loop, it jumps to the next statement after the loop.