Python Cookbook: Everyone can cook delicious recipes 300+

Introduction....20

Abstract Classes....21

Collection of similar objects....22

Conformance checking (is, as)....23

Constructor requirements....24

Declaration and initialization....25

Inheritance of abstract classes....26

Methods requirements....27

Multiple inheritance....28

Properties requirements....29

Subscript requirements....30

Algorithms....31

Sorting algorithms:....32

Bubble Sort....33

Counting Sort....34

Merge Sort....35

Quick Sort....36

Radix Sort....37

Searching algorithms:....38

Binary Search....39

Fast Linear Search....40

Interpolation Search....41

Linear Search....42

Changes in new versions....43

Alias type syntax....44

Comparison operators....45

Context Variables....46

Data classes....47

Dictionary Merge....48

Exceptions handling....49

Extended Iterable Unpacking....50

Features of f-strings....51

Guaranteed dictionary order....52

IANA time zone support....53

Integer division....54

Methods of dictionaries....55

New Type Union Operator....56

New string methods....57

Octal literals....58

Parenthesized context managers....59

Simplified asynchronous call....60

Throw an exception....61

Type Hinting Generics....62

Unicode strings....63

Variables for the ‘for’ loop....64

Walrus Operator :=....65

f-strings support....67

map and filter functions....68

match statements....69

print function....70

range function....71

Classes....72

Check for reference equality....73

Constructors:....74

Call of the own constructor....75

Call of the parent constructor....76

Default constructor....76

Optional parameter values....78

Replacement of the parent constructor....79

With paramenters....80

Without any paramenters....81

Create a copy of the object....82

Definition and initialization....83

Descriptors....84

Destructor....86

Events....87

Fields....89

Inheritance:....90

Abstract classes....91

Base class....93

Compability check (is)....95

Interface inheritance....97

Method override....99

Private class members....100

Property override....101

Protected class members....102

Reduction to the base type....103

Methods:....104

Array of parameters....105

Class methods....106

In/Out parameters....107

Multiple return values....108

Optional parameter values....109

Variable parameters....110

With return value....111

Without any parameters....112

Without any return value....113

Nested class....114

Properties:....115

Computed properties....116

Lazy properties....117

Read-Only properties: Computed properties....118

Read-Only properties: Stored properties....119

Stored properties....120

Type properties....121

Subscripts (indexer methods):....122

With generic parameter....123

With multiple parameter....124

With one parameter....125

Type member....126

Control Flow....128

if/else statements:....129

Complex conditions....130

Is not valid example....131

Ternary operator....132

Valid example....133

Match statements:....134

Different types of values....135

Example with a tuple....136

Match if conditions....137

Simple conditions....138

Interruption of a control flow:....139

“break statement”....140

“continue statement”....141

With return value....142

With return value....143

Loops:....144

“do-while” loop....145

“for in range” loop....146

“for-in” loop....147

“while” loop....148

Endless loop....149

Enumerations....150

Base member value....151

Base type....152

Conversion from a string....153

Converting to a String....154

Definition and initialization....155

Enums comparison....156

Explicitly set base value....157

Get the list of values....158

Initializing from a base value....159

Exceptions Handling....160

Catch all exceptions....161

Catch the specific exception....162

Define an exception type....163

Guaranteed code execution....164

If no exception occurred....165

Method throwing an exception....166

Re-throw exceptions....167

Throw an exception....168

Extensions....169

Adding object methods....170

Functions....171

Array of parameters....172

In/Out parameters....173

Multiple return values....174

Optional parameter values....175

Out parameters....176

Recursion....177

Variable parameters....178

With return value....179

Without any parameters....180

Without any return value....181

Generic Types....182

Class conformity....183

Default value....184

Generic classes....185

Generic collections....186

Generic methods....187

Interface conformity....188

Substitution principle....189

Initializing of Types....190

Classes:....191

With a constructor....192

Without any constructor....193

Collections:....194

Dictionaries....195

Lists....196

Set....197

Enumerations....198

Simple types....199

Structures:....201

With a constructor....202

Without any constructor....203

Lambda Expressions....204

Capture of variables....205

Currying....206

Function as a parameter....207

Function as a return value....208

Memoization....209

Memoization (Recursive)....211

Modify captured variables....212

Recursion....213

Void function as a parameter....214

With multiple operators....215

With multiple parameters....216

With one parameter....217

Without return value....218

Lists and Collections....219

Dictionaries:....220

Adding and removing of elements....221

Amount of elements....222

Checking of presence of a key....223

Converting a dictionary....224

Default value....225

Dictionaries initialization....226

Dictionary Merge....227

Filtering of elements....228

Get value by key....229

Getting keys by value....230

Getting of a list of keys....231

Getting of a list of values....232

Grouping collection....233

Iterating over a dictionary....234

Sort dictionary by keys....235

Sort dictionary by values....236

Iterators and generators:....237

Reverse generator....238

Reverse iterator....239

Simple generator....240

Simple iterator....241

Lists:....242

Adding and removing of elements....243

Arrays comparing....244

Checking equality of lists....245

Converting of a list....246

Dynamic lists....247

Filtering of elements....248

Finding a list item....249

Getting Min and Max values....250

Getting part of a list....251

Getting unique values....252

Iterating over an array (recursive)....253

Iterating over a list....254

Iterating over a list with index....255

List copying....256

List length....257

List with a default value....258

List initialization....259

List merging....260

Sorting of elements....261

Sum of elements....262

every() and some() methods....263

Sets:....264

Adding and removing of elements....265

Converting of a set....266

Filtering of elements....267

Iterating over a set....268

Search for an element....269

Sets comparison....270

Sets initialization....271

Sets operations....272

Sorting of elements....273

Stack (LIFO)....274

Multi-threaded Operations....275

Keywords "async" and "await"....276

Start of a new thread....277

Start of a new thread and waiting....278

Synchronization with blocking....279

Thread task object....281

Operators Overloading....283

Binary operators....284

Comparison operators....285

Custom operators....287

Equivalence operators....289

Unary operators....290

Design Patterns....291

Creational patterns:....292

Abstract factory....293

Builder....296

Factory method....299

Prototype....301

Singleton....303

Structural patterns:....304

Adapter (Composition)....305

Adapter (Inheritance)....307

Bridge....309

Composite....311

Decorator....313

Facade....315

Flyweight....317

Proxy....319

Behavioral patterns:....321

Chain of responsibility....322

Command....324

Interpreter....326

Iterator....328

Mediator....330

Memento....332

Observer....334

State....336

Strategy....338

Template method....340

Visitor....342

Regular Expressions....344

Check match string....345

Check match whole string....346

Named groups....347

Regular expression options....348

Replacement of the match....350

Search all matches....351

Search for a match....352

Simple Types....353

Boolean:....354

Conversion from a string....355

Converting to a string....356

Getting values....357

Logical operations....358

Character type:....359

Converting to a number and back....360

Converting to a string....361

Escape characters....362

Getting from a string....364

Special Characters....365

Date and time:....366

Comparison of dates....367

Conversion from a string....368

Converting to a string....369

Date changing....370

Date initialization....371

Getting of the current date....372

Getting of year, month, day....373

The interval between the dates....374

Double and Float:....375

Arithmetic operations....376

Conversion from a string....377

Converting to a string....378

Converting to integer....379

Getting random values....380

Number comparison....381

Rounding and truncating....382

Integer:....383

Arithmetic operations....384

BigInteger....385

Bitwise operations....386

Conversion from a string....387

Converting to a string....388

Getting random values....389

Numeral system....390

Mathematical operations:....391

Decimal logarithm....392

Exponentiation....393

Logarithm....394

Sine, cosine and tangent....395

Square root....396

min and max values....397

Strings:....398

Change the case of characters....399

Character replacement....400

Characters count....401

Converting to a number....402

Empty strings....403

Escaping characters....404

Getting substring....405

Iterating over a string....406

Removing spaces....407

Replace multiple characters....408

Split into an array....409

String multiplication....410

String padding....411

String comparison....412

String concatenating....413

String interpolation....414

Strings list concatenating....415

Substring index....416

Substring inserting....417

Substring removing....418

Substring replacement....419

Substring searching....420

Tuple....421

Work with Color....422

Color to HTML color....423

Color to RGB....424

HTML color to RGB....425

RGB to Color....426

RGB to HTML color....427

Work with Database (DB)....428

Connect to the DB:....429

Connect to Access....430

Connect to FireBird....431

Connect to MySql....432

Connect to Oracle....433

Connect to PostgreSQL....434

Connect to SQL Server....435

Connect to SQLite....436

Execute SQL command....437

Execute SQL query....438

SQL query with parameters....439

Work with Files....440

Archives:....441

Packing a zip file....442

Packing a zip file with a password....443

Unpacking a zip file....444

Basic operations:....445

Check if the file exists....446

Combining two parts of a path....447

Copy a directory....448

Create a directory....449

Delete a directory....450

Delete a directory with data....451

Delete a file....452

File copying....453

File moving....454

Get the working directory....455

Getting file properties....456

List of files in the directory....457

Binary files:....458

Read array from a file....459

Read dictionary from a file....460

Reading a binary file....461

Write array to a file....462

Write a directory to a file....463

Writing a binary file....464

Text files:....465

Append text to a file....466

Read file line by line....467

Read from a file....468

Write to a file....469

XML files:....470

Reading XML file....471

Writing XML file....472

Learn to cook delicious and fun recipes in Python. codes that will help you grow in the programming environment using this wonderful language.Some of the recipes you will create will be related to: Algorithms, classes, flow control, functions, design patterns, regular expressions, working with databases, and many more things.Learning these recipes will give you a lot of confidence when you are creating great programs and you will have more understanding when reading live code.