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Python Institute PCPP-32-101 Exam Syllabus Topics:

Section	Weight	Objectives
Network Programming	18%	- HTTP & Client-Server Communication - REST API Basics - JSON/XML Data Exchange - TCP/IP & Socket Programming
File & Data Processing	15%	- CSV & Configuration Files - XML & JSON Parsing - SQLite3 Database Operations - Logging & System Interaction
Coding Conventions, Best Practices & Standardization	12%	- Code Readability & Documentation - PEP 1, PEP 8, PEP 20, PEP 257 - Pythonic Principles
Modules, Packages & Advanced Features	10%	- Functional Programming Tools - Import System & Namespaces - Decorators & Context Managers
GUI Programming	20%	- Tkinter Basics & Widgets - Event Handling & Callbacks - Event-Driven Paradigm - Dialogs & Application Structure
Advanced Object-Oriented Programming	25%	- Multiple Inheritance & Mixins - Attribute Access & Descriptors - Design Patterns - Abstract Base Classes - Advanced Exceptions & Exception Chaining - Metaclasses & Metaprogramming - Shallow vs Deep Copy & Serialization

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Python Institute PCPP-32-101トレーリングサンプル & PCPP-32-101参考書

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Python Institute PCPP1 - Certified Professional in Python Programming 1 認定 PCPP-32-101 試験問題 (Q38-Q43):

質問 # 38
Analyze the following snippet and decide whether the code is correct and/or which method should be distinguished as a class method.

A. The getNumberofCrosswords () method should be decorated With @classmethod.
B. There is only one initializer, so there is no need for a class method.
C. The code is erroneous.
D. The gexNumberOfcrosswords () and issrived methods should be decorated with @classzoechod.

正解：A

解説：
Explanation
The correct answer is B. The getNumberofCrosswords() method should be decorated with @classmethod. In the given code snippet, the getNumberofCrosswords method is intended to be a class method that returns the value of the numberofcrosswords class variable. However, the method is not decorated with the @classmethod decorator and does not take a cls parameter representing the class itself. To make getNumberofCrosswords a proper class method, it should be decorated with @classmethod and take a cls parameter as its first argument.
The getNumberofCrosswords() method should be decorated with @classmethod.
This is because the getNumberofCrosswords() method is intended to access the class-level variable numberofcrosswords, but it is defined as an instance method, which requires an instance of the class to be created before it can be called. To make it work as a class-level method, you can define it as a class method by adding the @classmethod decorator to the function.
Here's an example of how to define getNumberofCrosswords() as a class method:
classCrossword:
numberofcrosswords =0
def __init__(self, author, title):
self.author = author
self.title = title
Crossword.numberofcrosswords +=1
@classmethod
defgetNumberofCrosswords(cls):
returncls.numberofcrosswords
In this example, getNumberofCrosswords() is defined as a class method using the @classmethod decorator, and the cls parameter is used to access the class-level variable numberofcrosswords.

質問 # 39
Look at the following code snippets and decide which ones follow PEP 8 recommendations for whitespacesin expressions and statements(Select two answers.)

A. A whitespace immediately after the opening parenthesis that starts indexing or slicing:
B. No whitespace immediately before the opening parenthesis that starts the list of arguments of a function call:
C. No whitespace between a trailing comma and a following closing parenthesis:
D. A whitespace immediately before a comma,semicolon, and colon:

正解：B、C

解説：
Explanation
Option A is true because PEP 8 recommends avoiding extraneous whitespace immediately inside parentheses, brackets or braces 1.
Option C is true because PEP 8 recommends avoiding extraneous whitespace between a trailing comma and a following close parenthesis 1.

質問 # 40
Select the true statements related to PEP 8 naming conventions. (Select two answers.)

A. Constants should be written in all lower-case letters with words separated by underscores
B. You should always use self as the first argument to instance methods, and cls as the first argument to class methods.
C. Function and variable names should be lower-case with words separated by underscores.
D. Modules should have short names written in CameICase.

正解：A、C

解説：
Option A is true because PEP 8 recommends that function and variable names should be lowercase, with words separated by underscores .
Option D is true because PEP 8 recommends that constants should be written in all capital letters with words separated by underscores .
PEP 8 is the official style guide for Python code. It provides guidelines for how to write readable code that follows consistent naming conventions. The aim of PEP 8 is to improve the readability of Python code and make it easier to understand and maintain.
According to PEP 8, variable and function names should be written in all lower-case letters with words separated by underscores, as stated in A. Constants, which are variables whose value is expected to remain constant throughout the code, should be written in all upper-case letters with words separated by underscores, as stated in D.
References:
PEP 8 -- Style Guide for Python Code: https://www.python.org/dev/peps/pep-0008/ Python Documentation: https://docs.python.org/3/tutorial/classes.html#classmethods-and-staticmethods

質問 # 41
Which of the following examples using line breaks and different indentation methods are compliant with PEP
8 recommendations? (Select two answers.)

正解：B、C

解説：
The correct answers are B. Option B and D. Option D . Both options B and D are compliant with PEP 8 recommendations for line breaks and indentation. PEP 8 recommends using 4 spaces per indentation level and breaking lines before binary operators. In option B, the arguments to the print function are aligned with the opening delimiter, which is another acceptable way to format long lines according to PEP 8. In option D, the second line is indented by 4 spaces to distinguish it from the next logical line.

質問 # 42
If purple can be obtained from mixing red and blue, which color codes represent the two ingredients? Select two answers)

A. #FFFFFF
B. #0000FF
C. #000000
D. #FF0000

正解：B、D

解説：
If purple can be obtained from mixing red and blue, which color codes represent the two ingredients? Select two answers) A). #FFFFFF B). #0000FF C). #FF0000 D). #000000

質問 # 43
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