Short Answer Type Questions-I Question 1: Observe the following PARTICIPANTS and EVENTS table cerefully and write the name of the RDBMS operation which will be used to produce the output as shown in RESULT? Also, find the Degree and Cardinality of the RESULT. Answer: Cartesian Product Degree ...
round (5.8) = 6, round (4.1) = 5 and floor (6.9) = 6, floor (5.01) = 5 Short Answer Type Questions (2 marks): Question 1. Out of the following, find those identifiers, which cannot be used for naming Variables or functions in a Python program: Total * Tax, While, Class, Swit...
# Import Data df = pd.read_csv("https://github.com/selva86/datasets/raw/master/mpg_ggplot2.csv") # Prepare data x_var ='manufacturer' groupby_var ='class' df_agg = df.loc[:,[x_var, groupby_var]].groupby(groupby_var) vals =[df[x_var].values.tolist()for i, df in df_agg]...
This set of Python Multiple Choice Questions & Answers (MCQs) focuses on “Classes and Objects – 1”. 1. ___ represents an entity in the real world with its identity and behaviour. a) A method b) An object c) A class d) An operator View...
Python语言比起C++、Java等主流语言,语法更简洁,也更接近英语,对编程世界的新人还是很友好的,这也是其显著优点。最近总有人问我Python相关的问题,这些问题也偏基础,自古有句话,授人以鱼不如授人以渔,刚好趁五一时间总结了几篇Python的知识点,帮助小伙伴成功入坑Python,将这门工具语言顺利掌握起来。 Python常用数据...
原文链接:https://towardsdatascience.com/53-python-interview-questions-and-answers-91fa311eec3f本文...
Defaultdict is a sub-class of the dictionary class that returns a dictionary-like object. The functionality of both dictionaries and defaultdict are almost same except for the fact that defaultdict never raises a KeyError. It provides a default value for the key that does not exists....
The course is kept updated and questions about the course content are answered promptly by the instructors. This course does not teach data science, machine learning or artificial intelligence, it is focused solely on teaching the pre-requisite Python skills that you need to move into these ...
classPoint:# def__init__(self,x,y,z):self.x=x self.y=y self.z=z>>>ob=Point(1,2,3)>>>x=ob.x>>>ob.y=y 类实例的内存占用很有趣: 在这里__weakref__是与这个object有关的软引用的列表,__dict__是这个类实例的字典,包含了这个类实例的所有属性的值。
InterviewQuestions.md First Commit 7年前 README.md 第二部分完成 7年前 README 1、为什么学习Python? 高层语言 :无需考虑如何管理你的程序使用的内存一类的底层细节等。 可移植性 :由于Python的开源本质,它已经被移植在许多平台上。 面向对象 :Python既支持面向过程的编程也支持面向对象的编程。 可扩展性 :Pyt...