32. What are loops in Python? How do you write a nested for-loop program? The loop is a sequence of instructions that gets executed repeatedly until and unless an exit condition is reached. There are two types of loops in Python: For Loop: This Loop iterates over a sequence like lists...
In Python’s CPython implementation, the GIL is a mutex that prevents multiple threads from running Python bytecode at the same time. It ensures memory management thread safe. But this doesn’t allow Python to make the most of multi core processors for CPU bound tasks. The workarounds inclu...
The iterator, which has a .__next__ method, holds information on where exactly you are in your iteration: it knows what the next element in the iteration is.4. How to Determine the Size of your List in Python You can pass your list to the len() function to get the length of your...
DBMS Nested-Loop Join Algorithm MCQs: This section contains multiple-choice questions and answers on Nested-Loop Join Algorithm in DBMS. Submitted byAnushree Goswami, on May 15, 2022 1. Nested loop joins are joins in which there are two nested ___ loops. ...
Indentation is required in Python. It designates a code block. An indented block contains all of the code for loops, classes, functions, and so on. The most common method is to use four space characters. If your code is not indented properly, it will not run correctly and will generate ...
While Loop:This loop comes handy when the programmer is not aware of the number of loops. While the loop keeps on repeating until the given condition is not true anymore. Nested Loop:The Nested loop is different from the For and While loop. When one loop is placed inside another one, it...
Let’s look at some basic interview questions on pandas. Kind interviewers may start with these simple questions to comfort you in the beginning, while others might ask these to assess your basic grasp of the library. 1. What is pandas in Python?
The ** is an exponentiation operator in the Python programming language. In Python, the ** operator is used to raise the number on the left to the power of the exponent on the right, which is represented by the symbol **. In other words, in the expression 2 ** 3, 2 is raised to...
11. How can we flatten a 2D or 3D array in JavaScript? Before ES8 to flatten a nested array one would have to make recursive calls to it to achieve it. To ease the work, ES8 has introduced a method called ‘array.flat(depth)’ to flatten any array. The default value of depth is ...
Packages are used to group related modules together into a single namespace, making it easier to organize and manage larger projects. Packages can be nested, allowing for even greater organization and flexibility. Python has a large and active community of developers who have created a wide range...