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Certified Professional in Python Programming 1 Practice Test

PCPP1 exam Format | Course Contents | Course Outline | exam Syllabus | exam Objectives

Exam Code: PCPP1
Exam Name: Python-Institute PCPP1 Certified Professional in Python Programming 1 (PCPP)

Module 1: Advanced Object-Oriented Programming (25%)

– Understand and explain the basic terms and programming concepts used in the OOP paradigm
- essential terminology: class, instance, object, attribute, method, type, instance and class variables, superclasses and subclasses
- reflexion: isinstance(), issubclass()
- the __init__() method
- creating classes, methods, and class and instance variables; calling methods; accessing class and instance variables

– Perform Python core syntax operations
- Python core syntax expressions – magic methods: comparison methods (e.g. __eq__(self, other)), numeric methods (e.g. __abs__(self)), type conversion methods (e.g. __init__(self)), object intro- and retrospection (e.g. __str__(self), __instancecheck__(self, object)), object attribute access (e.g. __getattr__(self, attribute)), accessing containers (e.g. __getitem__(self, key))
- operating with special methods
- extending class implementations to support additional core syntax operations

– Understand and use the concepts of inheritance, polymorphism, and composition
- class hierarchies
- single vs. multiple inheritance
- Method Resolution Order (MRO)
- duck typing
- inheritance vs. composition
- modelling real-life problems using the "is a" and "has a" relations

– Understand the concept of extended function argument syntax and demonstrate proficiency in using decorators
- special identifiers: *args, kwargs
- forwarding arguments to other functions
- function parameter handling
- closures
- function and class decorators
- decorating functions with classes
- creating decorators and operating with them: implementing decorator patterns, decorator arguments, wrappers
- decorator stacking
- syntactic sugar
- special methods: __call__, __init__

– Design, build, and use Python static and class methods
- implementing class and static methods
- class vs. static methods
- the cls parameter
- the @classmethod and @staticmethod decorators
- class methods: accessing and modifying the state/methods of a class, creating objects

– Understand and use Python abstract classes and methods
- abstract classes and abstract methods: defining, creating, and implementing abstract classes and abstract methods
- overriding abstract methods
- implementing a multiple inheritance from abstract classes
- delivering multiple child classes

– Understand and use the concept of attribute encapsulation
- definition, meaning, usage
- operating with the getter, setter, and deleter methods

– Understand and apply the concept of subclassing built-in classes
- inheriting properties from built-in classes
- using the concept of subclassing the built-ins to extend class features and modify class methods and attributes

– Demonstrate proficiency in the advanced techniques for creating and serving exceptions
- exceptions as objects, named attributes of exception objects, basic terms and concepts
- chained exceptions, the __context__ and __cause__ attributes, implicitly and explicitly chained exceptions
- analyzing exception traceback objects, the __traceback__ attribute
- operating with different kinds of exceptions

– Demonstrate proficiency in performing shallow and deep copy operations
- shallow and deep copies of objects
- object: label vs. identity vs. value
- the id() function and the is operand
- operating with the copy() and deepcopy() methods

– Understand and perform (de)serialization of Python objects
- object persistence, serialization and deserialization: meaning, purpose, usage
- serializing objects as a single byte stream: the pickle module, pickling various data types
- the dumps() and loads functions
- serializing objects by implementing a serialization dictionary: the shelve module, file modes, creating chelve objects

– Understand and explain the concept of metaprogramming
- metaclasses: meaning, purpose, usage
- the type metaclass and the type() function
- special attributes: __name__, __class__, __bases__, __dict__
- operating with metaclasses, class variables, and class methods

Module 2: Coding Conventions, Best Practices, and Standardization (12%)

– Understand and explain the concept of Python Enhancement Proposals and Python philosophy
- the PEP concept and selected PEPs: PEP 1, PEP 8, PEP 20, PEP 257
- PEP 1: different types of PEPs, formats, purpose, guidelines
- PEP 20: Python philosophy, its guiding principles, and design; the import this instruction and PEP 20 aphorisms

– Employ the PEP 8 guidelines, coding conventions, and best practices
- PEP 8 compliant checkers
- recommendations for code layout: indentation, continuation lines, maximum line length, line breaks, blank lines (vertical whitespaces)
- default encodings
- module imports
- recommendations for string quotes, whitespace, and trailing commas: single-quoted vs. double-quoted strings, whitespace in expressions and statements, whitespace and trailing commas
- recommendations for using comments: block comments, inline comments
- documentation strings
- naming conventions: naming styles, recommendations
- programming recommendations

– Employ the PEP 257 guidelines, conventions, and best practices
- docstrings: rationale, usage
- comments vs. docstrings
- PEP 484 and type hints
- creating, using, and accessing docstrings
- one-line vs. multi-line docstrings
- documentation standards, linters, fixers

Module 3: GUI Programming (20%)

– Understand and explain the basic concepts and terminology related to GUI programming
- GUI: meaning, rationale, basic terms and definitions
- visual programming: examples, basic features
- widgets/controls – basic terms: windows, title and title bars, buttons, icons, labels, etc.
- classical vs. event-driven programming
- events – basic terms
- widget toolkits/GUI toolkits

– Use GUI toolkits, basic blocks, and conventions to design and build simple GUI applications
- importing tkinter components
- creating an application's main window: the Tk(), mainloop(), and title methods
- adding widgets to the window: buttons, labels, frames, the place() method, widget constructors, location, screen coordinates, size, etc.
- launching the event controller: event handlers, defining and using callbacks, the destroy() method, dialog boxes
- shaping the main window and interacting with the user
- checking the validity of user input and handling errors
- working with Canvas and its methods
- using the Entry, Radiobutton, and Button widgets
- managing widgets with the grid and place managers
- binding events using the bind() method

– Demonstrate proficiency in using widgets and handling events
- settling widgets in the window's interior, geometry managers
- coloring widgets, color modes: RGB, HEX
- event handling: writing event handlers and assigning them to widgets
- event-driven programming: implementing interfaces using events and callbacks
- widget properties and methods
- variables: observable variables and adding observers to variables
- using selected clickable and non-clickable widgets
- identifying and servicing GUI events

Module 4: Network Programming (18%)

– Understand and explain the basic concepts of network programming
- REST
- network sockets
- Domains, addresses, ports, protocols, and services
- Network communication: connection-oriented vs. connectionless communication, clients and servers

– Demonstrate proficiency in working with sockets in Python
- the socket module: importing and creating sockets
- connecting sockets to HTTP servers, closing connections with servers
- sending requests to servers, the send() method
- receiving responses from servers, the recv() method
- exception handling mechanisms and exception types

– Employ data transfer mechanisms for network communication
- JSON: syntax, structure, data types (numbers, strings, Boolean values, null), compound data (arrays and objects), trial JSON documents and their anatomies
- the json module: serialization and deserialization, serializing Python data/deserializing JSON (the dumps() and loads methods), serializing and deserializing Python objects
- XML: syntax, structure, trial xml documents and their anatomies, DTD, XML as a tree
- processing xml files

– Design, develop, and Improve a simple REST client
- the request module
- designing, building, and using testing environments
- HTTP methods: GET, POST, PUT, DELETE
- CRUD
- adding and updating data
- fetching and removing data from servers
- analyzing the server's response
- response status codes

Module 5: File Processing and Communicating with a Program's Environment (15%)

– Demonstrate proficiency in database programming in Python
- the sqlite module
- creating and closing database connection using the connect and close methods
- creating tables
- inserting, reading, updating, and deleting data
- transaction demarcation
- cursor methods: execute, executemany, fetchone, fetchall
- creating basic SQL statements (SELECT, INSERT INTO, UPDATE, DELETE, etc.)

– Demonstrate proficiency in processing different file formats in Python
- parsing XML documents
- searching data in XML documents using the find and findall methods
- building XML documents using the Element class and the SubElement function
- reading and writing CSV data using functions and classes: reader, writer, DictReader, DictWriter
- logging events in applications
- working with different levels of logging
- using LogRecord attributes to create log formats
- creating custom handlers and formatters
- parsing and creating configuration files using the ConfigParser object
- interpolating values in .ini files

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Certified Professional in Python Programming 1 Practice Test

PCPP1 exam Format | Course Contents | Course Outline | exam Syllabus | exam Objectives

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