datacamp python answers

3-1.Identifier. Why is variable name and variable type declaration not required in Python?[Answer] These answers are found online.In Python, the object type and memory are determined at runtime. When a value is created, the interpreter determines the type of the new object based on the syntax and the right operand.The variable is automatically declared when it is

Python programming Quick Start-making tedious work automated-chapter two exercises and their answers 1, what are the two values of the Boolean data type? How do I spell it?A: True and false, use uppercase T and uppercase F, and the other letters are lowercase.What are the 2, 3 Boolean operators?Answer: And, or, and not.3. Write the truth table for each boolean operator (i.e., each possible combination of op

The problem with Python exercises is as follows:Summary: The bonus paid by the enterprise is based on the profit commission. Profit (I) less than or equal to $100,000, the bonus can be raised by 10%, the profit is higher than $100,000, less than $200,000, the portion of less than 100,000 yuan by 10% commission, higher than the portion of 100,000 yuan, a commission of 7.5%, 200,000 to 400,000, higher than 200,000 yuan, can commission 5% , between 400,0

Common Questions and answers for beginners of python, and questions for beginners of python 1. lambda Functions The function format is lambda keys: express anonymous function lambda is an expression function that accepts the keys parameter and returns the value of the expression. Therefore, no return or function name is required. It is often used in functions tha

This is a self-made exercise and may be incorrect. You are welcome to discuss and discuss various optimization and reconstruction solutions.Based on feedback or code review, the updated answers or related content of this article will be added to the comments of this blog.We will try to ensure that the answer code for each question is complete, not just functions or classes. Open the Python 2.7 IDLE and copy

Python programming Quick Start Chapter 1 practical project reference answers, python Quick Start 1 #! /Usr/bin/env python3.5 2 # coding: UTF-8 3 #5.6.1 4 # Fun game Item List 5 # A dictionary containing the item name and quantity is given, and print the number of items corresponding to 6 7 dict_stuff = {'rope': 1, 'torch': 6, 'Gold coin ': 42, 'dagger': 1, 'arrow

): "Timing function" start_time = time. clock () result = func end_time = time. clock () return (result, end_time-start_time) def factorial_iteration (n): "Use cyclic calculation factorial" result = 1 for eachItem in range (n + 1) [1:]: result = result * eachItem return resultdef factorial_lambda (n): "calculate a factorial using lambda" return reduce (lambda x, y: x * y), range (n + 1) [1:]) def factorial_recursion (n): "use recursion to calculate factorial" if n = 0 or n = 1: return 1 else: re

('Please input the minutes :...'))Hours = minutes/60Mins = minutes-hours * 60Print "% I: % I" % (hours, mins) 6-10.String. Write a function to return a string similar to the input string, which requires case-sensitivity inversion. For example, if "Mr. Ed" is input, "mR. eD" should be returned as the output.[Answer]The Code is as follows:Input = raw_input ('Please input a string :...')Output =''For I in input:If I = I. upper ():Output = output + I. lower ()Else:Output = output + I. upper ()Print

This is a self-made exercise and may be incorrect. You are welcome to discuss and discuss various optimization and reconstruction solutions.Based on feedback or code review, the updated answers or related content of this article will be added to the comments of this blog.We will try to ensure that the answer code for each question is complete, not just functions or classes. Open the Python 2.7 IDLE and copy

In-depth answers to 11 basic questions about Python and 11 on python11 Preface This article gives you an in-depth answer to the 11 basic questions about Python. Through these questions, you can further understand and learn about python. Let's not talk about them here. Let's take a look at the detailed introduction. I.

of the class, easy to handle exceptions;Development experience:The exception is the main processing of reading files, but also can be used with the method of reading files; can also be used for network connections where exceptions can include a large number of error messages for error handling.Code:Class Shortinputexception (Exception): def __init__ (self, length, atleast): exception.__init__ (self) self.length = length self.atleast = atleast while True: try: