The popularity of artificial intelligence (AI) has led to a growing demand for Python programmers in the job market. For many Python programmers, the interview process can make a difference in whether they get paid or not. Can you pass the interview! To this end, we have compiled some common interview questions about Python programming language, hoping to help students interview!
1. What is Python? What are the advantages of using Python?
Python is a programming language with automatic management of objects, modules, threads, exceptions, and memory. The advantages of using Python are: simple, easy to learn, portable, extensible, multiple built-in data types, open source, and so on.
2. What is PEP8?
PEP8 is a coding specification that is a set of coding suggestions on how to make Python code more readable.
3. What are pickling and unpickling?
The Pickle module allows you to convert Python objects to a string and save them to a file using the dump function, a process called serialization. The process of reconstructing a Python object using the object information stored in the file is called deserialization.
4. How to copy an object in Python?
In general, you can copy objects using either copy.copy() or copy.deepCopy (). But you can’t copy all of them, you can only copy most of them.
5. What is a negative index in Python?
Integers and negative numbers can be used for indexing in Python. For a positive index, 0 is the first, 1 is the second, and so on. For a negative index, -1 is the last, -2 is the penultimate, and so on.
6. How do I convert a number to a string?
Use the built-in function STR (). If you want octal or hexadecimal form, you can use oct() or hex() functions.
7. What is the difference between xrange and range?
Xrange returns an Xrange object, and range returns a List object, and uses the same amount of memory as its range, no matter how large.