Let’s get deeper into which questions about lists that might have or could haunt you as a Python programmer. Here's a list of all the questions we will answer in this tutorial:1. When to Use Python Lists and when to Use Tuples, Dictionaries or Sets The introduction seems pretty ...
how to map list of list? #not right classSolution: # @param {character[][]} matrix # @return {integer} def maximalRectangle(self, matrix): print matrix,range(len(matrix)), range(len(matrix[0])),matrix[0][0] a=[]foriinrange(len(matrix)): tmp=[]forjinrange(len(matrix[0])): ...
4. What is slicing in Python? As the name suggests, ‘slicing’ is taking parts of. Syntax for slicing is [start : stop : step] start is the starting index from where to slice a list or tuple stop is the ending index or where to sop. step is the number of steps to jump. ...
A tuple is another sequence data type that is similar to the list. A tuple consists of a number of values separated by commas. Unlike lists, however, tuples are enclosed within parentheses. What is the difference between tuples and lists in Python? The main differences between lists and tup...
In Python, attributes are accessed without parentheses, while methods require them. “DataFrame.shape” returns a tuple representing the dimensions of the DataFrame, typically in the form of rows or columns. 11. What are the different ways to create a Series? Using a list or array: Create a...
The major difference is tuples are immutable, while a list is mutable. It means once you create a tuple, you cannot edit or change the value in a tuple, while in a list, we can edit the value in it. 3. What are the types of Operators used in Python?
More than 250,000+ job openings across the world require expertise in Excel skills in various positions. The salary of an expert in Excel mainly lies in the range of ₹5 to ₹12 lakhs per year. This guide contains a well-organized list of the most frequently asked Excel interview ...
How do I apply a method to a sequence of objects? Can you do a Schwartzian Transform in Python? How can I sort one list by values from another list? What is a class? What is a method? What is self? How do I check if an object is an instance of a given class or of a subclas...
Tuples operation has smaller size than that of list, which makes it a bit faster 12. What does len() do? It is used to determine the length of a string, a list, an array, etc. a=’STM’ len(a) 13. What are *args and **kwargs in Python?
Utilisation des listes Python : import pandas as pd data = [['John', 25, 'Austin',70], ['Cataline', 30, 'San Francisco',80], ['Matt', 35, 'Boston',90]] columns = ['Name', 'Age', 'City', 'Marks'] df = pd.DataFrame(data, columns=columns) Powered By 10. Comment obteni...