Let’s revise Python first<\/a><\/strong><\/p>\n So, let’s start exploring the Latest\u00a0Python Interview Questions.<\/p>\n Latest Python Interview Questions and Answers<\/p><\/div>\n The following set of Latest Python Interview Questions contains basic as well as advanced Python Questions. Read each question carefully, try to answer by yourself, and if you face a problem, we’re happy to help.<\/p>\n Q.1. Is there a way to remove the last object from a list?<\/strong><\/p>\n Yes, there is. Try running the following piece of code-<\/span><\/p>\n 5<\/strong><\/p>\n Let’s read more about Python List<\/a><\/strong><\/p>\n [1, 2, 3, 4]<\/strong><\/p>\n Q.2. How do you open a file for writing?<\/strong><\/p>\n Let\u2019s create a text file on our Desktop and call it tabs.txt. To open it to be able to write to it, use the following line of code-<\/span><\/p>\n This opens the file in writing mode. You should close it once you\u2019re done.<\/p>\n H<\/a><\/strong>ave a look at Python Read and Write File<\/a><\/strong><\/p>\n Q.3. Can you explain the filter(), map(), and reduce() functions?<\/strong><\/p>\n Let\u2019s see these Python Functions<\/a><\/strong>.<\/span><\/p>\n {5, 6}<\/span><\/strong><\/p>\n This filters in the elements from 0 to 6 that are greater than the number 4.<\/span><\/p>\n {0, 1, 64, 8, 216, 27, 125}<\/strong><\/p>\n This calculates the cube for each element in the range 0 to 6 and stores them in a set.<\/span><\/p>\n 3<\/strong><\/p>\n Let\u2019s understand this:<\/span><\/p>\n 2-1=1<\/span><\/p>\n 3-1=2<\/span><\/p>\n 4-2=2<\/span><\/p>\n 5-2=3<\/span><\/p>\n Hence, 3.<\/span><\/p>\n Q.4. What do you know about palindromes? Can you implement one in Python?<\/strong><\/p>\n A palindrome is a phrase, a word, or a sequence that reads the same forward and backward. One such example will be pip! An example of such a phrase will be \u2018nurses run\u2019. Let\u2019s implement it, shall we?<\/span><\/p>\n True<\/strong><\/p>\n False<\/strong><\/p>\n Well, there are other ways to do this too. Let\u2019s try using an iterator<\/a><\/strong>.<\/span><\/p>\n True<\/strong><\/p>\n False<\/strong><\/p>\n False<\/strong><\/p>\n True<\/strong><\/p>\n Q.5. How will you use Python to read a random line from a file?<\/strong><\/p>\n We can borrow the choice() method from the <\/span>random<\/span><\/i> module <\/a><\/strong>for this.<\/span><\/p>\n ‘https:\/\/data-flair.training\/blogs\/category\/python\/’<\/strong><\/p>\n Let\u2019s restart the IDLE and do this again.<\/span><\/p>\n ‘https:\/\/data-flair.training\/blogs\/’<\/strong><\/p>\n ‘https:\/\/data-flair.training\/blogs\/category\/python\/’<\/strong><\/p>\n ‘https:\/\/data-flair.training\/blogs\/category\/python\/’<\/strong><\/p>\n ‘https:\/\/data-flair.training\/blogs\/category\/python\/’<\/strong><\/p>\n Q.6. How would you define a block in Python?<\/strong><\/p>\n For any kind of statements, we possibly need to define a block of code under them. However, Python does not support curly braces. This means we must end such statements with colons and then indent the blocks under those with the same amount.<\/span><\/p>\n Hello<\/strong> Q.7. Why do we need the __init__() function in classes? What else helps?<\/strong><\/p>\n __init__() is what we need to initialize a class when we initiate it. Let\u2019s take an example.<\/span><\/p>\n color: orange, type: citrus, size: 7<\/strong><\/p>\n In this code, we see that it is necessary to pass the parameter \u2018self\u2019 to tell Python it has to work with this object.<\/span><\/p>\n Q.8. Explain the output of the following piece of code-<\/strong> (123, ‘John’, 123, ‘John’)<\/b><\/p>\n In this code, we multiply the tuple by 2. This duplicates its contents, hence, giving us (123, \u2018John\u2019, 123, \u2018John\u2019). We can also do this to strings:<\/span><\/p>\n ‘banana’<\/strong><\/p>\n Q.9. How do you get all values from a Python dictionary?<\/strong><\/p>\n We saw previously, to get all keys from a dictionary<\/a><\/strong>, we make a call to the keys() method. Similarly, for values, we use the method values().<\/span><\/p>\n False<\/strong><\/p>\n True<\/strong><\/p>\n Q.10. How will you convert an integer to a Unicode character?<\/strong><\/p>\n This is simple. All we need is the chr(x) built-in function. See how.<\/span><\/p>\n ‘4’<\/strong><\/p>\n ‘1’<\/strong><\/p>\n ‘C’<\/strong><\/p>\n Latest Python Interview Questions for freshers – Q. 2,3,5,6,9,10<\/strong><\/p>\n Latest Python Interview Questions for experienced – Q. 1,4,7,8<\/strong><\/p>\n Q.11. Where will you use while<\/i> rather than for<\/i>?<\/strong><\/p>\n Although we can do with <\/span>for<\/span><\/i> all that we can do with <\/span>while<\/span><\/i>, there are some places where a while loop will make things easier-<\/span><\/p>\n Mostly asked Python Interview Questions<\/strong><\/a> For this, we\u2019ll simply use the max function.<\/span><\/p>\n ‘y’<\/strong><\/p>\n The following are the ASCII values for all the letters of this string-<\/span><\/p>\n f- 102<\/span><\/p>\n l- 108<\/span><\/p>\n y- 121<\/span><\/p>\n i- 105<\/span><\/p>\n N- 78<\/span><\/p>\n g- 103<\/span><\/p>\n By this logic, try to explain the following line of code-<\/span><\/p>\n ‘}’<\/span><\/p>\n (Bonus: } – 125)<\/span><\/p>\n Q.13. Why do we need break<\/i> and continue<\/i> in Python?<\/strong><\/p>\n Both <\/span>break<\/span><\/i> and <\/span>continue<\/span><\/i> are statements that control flow in Python loops<\/a><\/strong>. <\/span>break<\/span><\/i> stops the current loop from executing further and transfers the control to the next block. <\/span>continue<\/span><\/i> jumps to the next iteration of the loop without exhausting it.<\/span><\/p>\n Q.14. Will the do-while loop work if you don\u2019t end it with a semicolon?<\/strong><\/p>\n Trick question! Python does not support an intrinsic do-while loop. Secondly, to terminate do-while loops is a necessity for languages like C++.<\/span><\/p>\n Q.15. What if you want to toggle case for a Python string?<\/strong><\/p>\n![\"Latest](\"https:\/\/data-flair.training\/blogs\/wp-content\/uploads\/sites\/2\/2018\/08\/Python-interview-Quietions-01-1.jpg\")
<\/a>2. 30 Latest Python Interview Questions<\/h2>\n
>>> list=[1,2,3,4,5\r\n>>> list.pop(-1)<\/pre>\n
>>> list<\/pre>\n
>>> file=open('tabs.txt','w')<\/pre>\n>>> file.close()<\/pre>\n
\n
>>> set(filter(lambda x:x>4, range(7)))<\/pre>\n
\n
>>> set(map(lambda x:x**3, range(7)))<\/pre>\n
\n
>>> reduce(lambda x,y:y-x, [1,2,3,4,5])<\/pre>\n
>>> def isPalindrome(string):\r\n left,right=0,len(string)-1\r\n while right>=left:\r\n if not string[left]==string[right]:\r\n return False\r\n left+=1;right-=1\r\n return True\r\n>>> isPalindrome('redrum murder')<\/span><\/pre>\n>>> isPalindrome('CC.')<\/pre>\n>>> def isPalindrome(string):\r\n left,right=iter(string),iter(string[::-1])\r\n i=0\r\n while i<len(string)\/2:\r\n if next(left)!=next(right):\r\n return False\r\n i+=1\r\n return True\r\n>>> isPalindrome('redrum murder')<\/pre>\n>>> isPalindrome('CC.')<\/pre>\n>>> isPalindrome('CCC.')<\/pre>\n>>> isPalindrome('CCC')<\/pre>\n>>> import random\r\n>>> lines=open('tabs.txt').read().splitlines()\r\n>>> random.choice(lines)<\/pre>\n>>> import random\r\n>>> lines=open('tabs.txt').read().splitlines()\r\n>>> random.choice(lines)<\/pre>\n>>> random.choice(lines)<\/pre>\n
>>> random.choice(lines)<\/pre>\n
>>> random.choice(lines)<\/pre>\n
>>> if 3>1:\r\n print(\"Hello\")\r\n print(\"Goodbye\")<\/pre>\n
\nGoodbye<\/strong><\/p>\n>>> class orange:\r\n def __init__(self):\r\n self.color='orange'\r\n self.type='citrus'\r\n def setsize(self,size):\r\n self.size=size\r\n def show(self):\r\n print(f\"color: {self.color}, type: {self.type}, size: {self.size}\")\r\n>>> o=orange()\r\n>>> o.setsize(7)\r\n>>> o.show()<\/pre>\n
\n<\/b><\/p>\n>>> tuple=(123,'John')\r\n>>> tuple*=2\r\n>>> tuple<\/pre>\n
>>> 'ba'+'na'*2<\/pre>\n
>>> 'd' in {'a':1,'b':2,'c':3,'d':4}.values()<\/pre>\n>>> 4 in {'a':1,'b':2,'c':3,'d':4}.values()<\/pre>\n>>> chr(52)<\/pre>\n
>>> chr(49)<\/pre>\n
>>> chr(67)<\/pre>\n
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\nQ.12. In one line, show us how you\u2019ll get the max alphabetical character from a string.<\/strong><\/p>\n>>> max('flyiNg')<\/pre>\n>>> max('fly{}iNg')<\/pre>\n