These Python interview questions and answers mainly focus on intermediates. Here we provide you top Python interview questions including some advanced and technical questions also with their answers which will definitely help you to crack your next interview. So, let’s get started.<\/p>\n Q.1. How do you define data types in Python? How much memory does an integer hold?<\/strong><\/p>\n You do not define data types in Python. It determines this at runtime based on the values of the underlying expressions.<\/p>\n Q.2. What are *args and **kwargs? Why do we call them so?<\/strong><\/p>\n What if until runtime, you don\u2019t know how many arguments your function will take? That could depend on the user, and hence, you must wait until runtime. You can define your function with *args or **kwargs as the list of parameters. *args can then take any number of arguments, and **kwargs will take any number of keyword arguments. Let\u2019s take an example.<\/p>\n Code:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n We call them *args and **kwargs for arguments and keyword arguments respectively, but we can call them anything else we want.<\/p>\n Q.3. How is shallow copying different from deep copying?<\/strong><\/p>\n Shallow copying creates a new object – this holds the same objects as the original. So, any changes we make to this copy are visible in the original object as well. In deep copying, the new object holds copies of all the objects in the original, and so, any changes to these do not affect values in the original object.<\/p>\n To perform a shallow\/deep copy:<\/p>\n Code:<\/strong><\/p>\n Q.4. What are match() and search()?<\/strong><\/p>\n match() and search() are functions of the re module (for regular expressions) in Python. But they are slightly different. match() checks for a pattern match at the beginning of a string and search() checks for it in the entire string. Both return a Match object if found, else None.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.5. What does the following code output?<\/strong><\/p>\n Code:<\/strong><\/p>\n In the interpreter, this prints False. It looks alphanumeric but isn\u2019t. If it had a digit as well, it would return True.<\/p>\n Q.6. What is fabs()?<\/strong><\/p>\n Let\u2019s first talk about abs(). This is a built-in function<\/strong> <\/em><\/a>that returns the absolute value of the argument.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n fabs() is a built-in function in the math module. It gives us the absolute value of a float argument.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.7. What is a suite in Python?<\/strong><\/p>\n The suite is another name for a group of statements controlled by a clause. And the clause header starts with a uniquely identifying keyword and ends with a colon. In the following code, the part under if<\/em> is the suite:<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n That applies for this one too:<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n But this is invalid:<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Nesting is not possible for suites on the same lines as the clauses.<\/p>\n Q.8. How will you get the current time with Python?<\/strong><\/p>\n I will use the time module for this:<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Here, the time() function returns the current time in seconds since the Epoch, and localtime() converts it into a time tuple<\/strong><\/em><\/a> representing the local time. But a more efficient way to do this is:<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Now, let’s discuss some advanced Python Interview Questions and answers.<\/p>\n Q.9. Do you prefer Tkinter or PyQt?<\/strong><\/p>\n Both Tkinter and PyQt are good GUI development libraries for Python. There are some reasons why you should go for PyQt over Tkinter:<\/p>\n However, sometimes, you may want to go for Tkinter:<\/p>\n Q.10. How will you destroy allocated memory in Python?<\/strong><\/p>\n We do not need to explicitly deallocate memory in Python. Like in Java, the garbage collector takes care of allocating and deallocating memory. Memory leaks don’t happen often.<\/p>\n Python implements reference counting – it counts how often an object is referenced by other objects in the system. Each time a reference to an object is removed, its reference count is decremented. And when this becomes 0, the object is deallocated. Python runs its garbage collector when the difference between the number of allocations and the number of deallocations is greater than the threshold number.<\/p>\n Q.11. What is the self parameter?<\/strong><\/p>\n Every method in a class takes the self parameter. This tells it to work on the current object of the class. When we talk about the properties of the current object of a class, we prefix the self parameter to it. We can call this anything else we want.<\/p>\n Code:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.12. Print the following star pattern:<\/strong><\/p>\n \u00a0 \u00a0*<\/strong> Code: To print the star pattern:<\/strong><\/p>\n Q.13. Tell me one interesting thing about the Python interpreter.<\/strong><\/p>\n In the interpreter, suppose we add the numbers 2 and 3.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Then, if we want to use this result and operate on that, we can use the _ (underscore) in its place.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.14. Write a function to check whether a number is an Armstrong number.<\/strong><\/p>\n Considering Armstrong numbers are those whose digits\u2019 cubes sum up to the original number, let\u2019s take an example.<\/p>\n 153 = 13<\/sup> + 53<\/sup> + 33<\/sup><\/p>\n Q.15. What is enumerate?<\/strong><\/p>\n enumerate() is a built-in function. The enumerate object from the enumerate class gives us pairs with a count starting from 0, along with a value yielded by the iterable. Let\u2019s take an example.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.16. How is remove() different from del?<\/strong><\/p>\n remove() is a built-in method on lists in Python. It lets us delete the first occurrence of an object in a list<\/strong><\/em><\/a>. To delete an object at a certain index, we can use the del keyword or the pop() method.<\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.17. Can you overload constructors in Python?<\/strong><\/p>\n If we overload the __init__ method of the Fruit class, creating an object of the first kind raises an error.<\/p>\n Code:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n This is because there are not 2 __init__ methods- the second one exists, but the first one doesn\u2019t.<\/p>\n Q.18. Can you count each item\u2019s occurrences in a list without mentioning it?<\/strong><\/p>\n We can turn the list into a set to avoid duplicates, then for each number in it, create a tuple from the number and its count. Put this in a list comprehension<\/strong><\/em><\/a> and return the list.<\/p>\n Code:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Q.19. List some common commands of the Python debugger.<\/strong><\/p>\n The Python debugger (pdb) has many commands. Some are:<\/p>\n These are some frequently asked technical Python interview questions and answers. Let’s have a look:<\/p>\n Q.20. What are static variables?<\/strong><\/p>\n A static variable is a class variable – it belongs to a class.<\/p>\n Code:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n Code:<\/strong><\/p>\n Output:<\/strong><\/p>\n![\"Python](\"https:\/\/techvidvan.com\/tutorials\/wp-content\/uploads\/sites\/2\/2020\/02\/Python-interview-questions1.jpg\")
<\/a><\/p>\nPython Interview Questions and Answers for Intermediates<\/h2>\n
Top Python Interview Questions and Answers<\/h3>\n
>>> def add(*args):\n return sum([arg for arg in args])<\/pre>\n
>>> add(1,2,3)<\/pre>\n
>>> add(1,2,3,4)<\/pre>\n
>>> add(1,2,3.0)<\/pre>\n
def sayhello(**kwargs):\n for key,value in kwargs.items():\n print(value)\n\n>>> sayhello(fname=\"Ayushi\",lname=\"Sharma\")<\/pre>\n
\nSharma<\/div>\n>>> import copy\n>>> a=[1,2,3]\n>>> b=copy.copy(a)\n>>> c=copy.deepcopy(a)<\/pre>\n
>>> import re\n>>> re.match('location','relocation')\n>>> re.search('location','relocation')\\<\/pre>\n'I like to watch movies'.isalnum()<\/pre>\n
>>> abs(2-3)<\/pre>\n
>>> fabs(2.1-3.7)<\/pre>\n
>>> if 2>1:\n print(\"Ok\")\n print(\"Bye\")<\/pre>\n
\nBye<\/div>\n>>> if 2>1: print(\"Ok\"); print(\"Bye\")<\/pre>\n
\nBye<\/div>\n>>> if 2>1: if 2>-1: print(\"Ok\")<\/pre>\n
>>> import time\n>>> time.localtime(time.time())<\/pre>\n
>>> time.localtime()<\/pre>\n
Advanced Python Interview Questions and Answers<\/h3>\n
\n
\n
>>> class Fruit:\n def __init__(self,shape):\n self.shape='round'\n def show(self):\n print(self.shape)<\/pre>\n
>>> oj=Fruit('round')\n>>> oj.show()<\/pre>\n
\n\u00a0\u00a0* *<\/strong>
\n\u00a0* * *<\/strong>
\n* * * *<\/strong>
\n\u00a0* * *<\/strong>
\n\u00a0\u00a0* *<\/strong>
\n\u00a0\u00a0\u00a0*<\/strong><\/p>\ndef star():\n for row in range(4):\n for space in range(3-row,0,-1):\n print(' ',end='')\n for star in range(row+1):\n print('* ',end='')\n print()\n for row in range(3):\n for space in range(row+1):\n print(' ',end='')\n for star in range(3-row):\n print('* ',end='')\n print()\n\nstar()<\/pre>\n>>> 2+3<\/pre>\n
>>> _*3<\/pre>\n
for index, value in enumerate(['Milk','eggs','cheese']):\n print(index, value)<\/pre>\n
\n1 eggs
\n2 cheese<\/div>\n>>> list=[4,9,27,34,12,9,34]\n>>> list.remove(34)\n>>> list<\/pre>\n
>>> del list[2]\n>>> list<\/pre>\n
>>> list.pop(2)<\/pre>\n
>>> list<\/pre>\n
>>> class Fruit:\n def __init__(self,shape):\n self.shape=shape\n def __init__(self,shape,color):\n self.shape=shape\n self.color=color<\/pre>\n
>>> orange=Fruit('round','orange')\n>>> apple=Fruit('round')<\/pre>\n
\n\u00a0\u00a0<\/span>File “<pyshell#200>”, line 1, in <module>
\n\u00a0\u00a0\u00a0\u00a0<\/span>apple=Fruit(’round’)
\nTypeError: __init__() missing 1 required positional argument: ‘color’<\/div>\n>>> def count_in_list(list):\n return [(num,list.count(num)) for num in set(list)]<\/pre>\n
>>> count_in_list([1,2,4,1,4,1,7,9,5])<\/pre>\n
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Technical Python Interview Questions and Answers<\/h3>\n
>>> class Fruit:\n name='fruit'\n def __init__(self, color):\n self.color=color<\/pre>\n
>>> orange=Fruit('orange')\n>>> orange.name<\/pre>\n>>> Fruit.name<\/pre>\n