Which Python feature allows functions to accept any number of keyword arguments?
- **args
- **arguments
- **kwargs
- *arguments
The feature in Python that allows functions to accept any number of keyword arguments is **kwargs. This is often used when you want to pass a variable number of keyword arguments to a function. The double asterisk ** before kwargs allows you to collect keyword arguments into a dictionary within the function.
You've received a JSON file with non-ASCII characters, and while reading the file using the Python json module, you're facing an encoding issue. What can be done to correctly parse the JSON?
- Convert the non-ASCII characters to their Unicode equivalents.
- Use a different JSON parsing library that supports non-ASCII characters.
- Use the 'json.load' function with the 'encoding' parameter.
- Use the 'open' function with an explicit encoding argument.
To correctly parse a JSON file with non-ASCII characters, you can use the 'open' function with an explicit encoding argument to specify the correct character encoding used in the file.
Which statement is used to create an infinite loop in Python intentionally?
- break
- for i in range(10):
- if condition:
- while True:
To create an intentional infinite loop in Python, you can use the while True: statement. It will continue to execute the code block indefinitely until explicitly interrupted.
Which loop is most appropriate when the number of iterations is known beforehand?
- do-while
- for
- foreach
- while
The 'for' loop is most appropriate when the number of iterations is known beforehand. It is often used to iterate over a sequence or a range of values.
Which control structure allows the checking of multiple expressions for truth value and executing a block of code as soon as one of the conditions evaluates to true?
- for loop
- if-elif-else
- switch-case
- while loop
The if-elif-else control structure allows the checking of multiple expressions for truth value. It executes the block of code associated with the first true condition and then exits the structure.
Which Python library is typically used for parsing and generating JSON data?
- json
- jsondata
- jsonlib
- pyjson
The json library in Python is typically used for parsing and generating JSON (JavaScript Object Notation) data. JSON is a widely used data interchange format in web development and data processing.
You're setting up a new development environment and need multiple versions of Python. Which tool would be most suitable for managing multiple Python versions?
- Anaconda
- PyEnv
- Python Version Manager (PVM)
- Virtual Environment
PyEnv is a tool specifically designed for managing multiple versions of Python. It allows you to easily switch between different Python versions within your development environment. Virtual environments are used for isolating dependencies but not for managing different Python versions. Anaconda is a distribution of Python but doesn't focus solely on managing versions. PVM is not a commonly used tool.
One primary use case of tuples in Python programming is for _______ of multiple values.
- Indexing
- Iterating
- Packing
- Sorting
Tuples are often used for packing multiple values into a single entity, making it useful for tasks like returning multiple values from a function.
If a class has the slots attribute defined, it means the instances of that class will not have a _______ dictionary.
- attributes
- dict
- namespace
- slots
If a class has the slots attribute defined, it means the instances of that class will not have a 'dict' dictionary. The 'slots' attribute restricts the instance to only store attributes explicitly listed in 'slots'.
To get a deep copy of nested lists, the copy module provides the _______ method.
- copy.deep()
- copy.deep_copy()
- copy.deepcopy()
- copy.nested_copy()
To create a deep copy of nested lists in Python, you can use the copy.deepcopy() method from the copy module. It ensures that nested structures are fully duplicated, avoiding any shared references.