codemistic.github.io/python/keyword-for-loop-python.html at master · codemistic/codemistic.github.io

History

565 lines (473 loc) · 24.7 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

<!DOCTYPE html>

<head>

<title>for loop Python | Python Tutorials | CodeMistic</title>

new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],

j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=

'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);

})(window,document,'script','dataLayer','GTM-MCNC43J');</script>

window.dataLayer = window.dataLayer || [];

function gtag(){dataLayer.push(arguments);}

gtag('js', new Date());

gtag('config', 'G-YPTQSLH0XW');

</script>

integrity="sha384-xxzQGERXS00kBmZW/6qxqJPyxW3UR0BPsL4c8ILaIWXva5kFi7TxkIIaMiKtqV1Q" crossorigin="anonymous"/>

rel="stylesheet"/>

crossorigin="anonymous"/>

crossorigin="anonymous"/>

</head>

<body>

height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>

<a class="navbar-brand" href="../index.html">CODEMISTIC</a>

</button>

</li>

<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button"

data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">

Tutorials

</a>

<a class="dropdown-item" href="../python.html">Python</a>

<a class="dropdown-item" href="../dsa.html">Data Structure and Algorithms</a>

<a class="dropdown-item" href="../tutorials.html">All Tutorials</a>

</div>

</li>

<a class="nav-link" href="../events.html">Events</a>

</li>

</li>

<a class="nav-link" href="../campus.html">Campus Programme</a>

</li>

<!-- <li class="nav-item">

<a class="nav-link" href="https://docs.google.com/forms/d/e/1FAIpQLSc2O28YJpxQc6kh2tKpI_Lf5MwfwGXVnhMs0g5EEXobJ4Beeg/viewform?usp=sf_link" target="_blank">Contribute</a>

</li> -->

<a class="nav-link" href="../register.html">Join Our Community</a>

</li>

</ul>

</div>

</nav>

</div>

<div class="link">Python Introduction<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="start-python.html " class="closed">Getting Started</a>

</li>

<li>

<a href="keyword-and-identifiers-python.html" class="closed">Keyword and Identifiers</a>

</li>

<li>

<a href="statements-and-comments-python.html" class="closed">Statements & Comments</a>

</li>

<li>

<a href="variables-python.html" class="closed">Python Variables</a>

</li>

<li>

<a href="datatypes-python.html" class="closed">Python Datatypes</a>

</li>

<li>

<a href="type-conversion-python.html" class="closed">Python Type Conversion</a>

</li>

<li>

<a href="input-output-import-python.html" class="closed">Python I/O and import</a>

</li>

<li>

<a href="operators-python.html" class="closed">Python Operators</a>

</li>

<li>

<a href="namespace-python.html" class="closed">Python Namespace</a>

</li>

</ul>

</li>

<li>

<div class="link">Flow Control<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="if-else-python.html" class="closed">Getting if...else</a>

</li>

<li>

<a href="keyword-for-loop-python.html" class="opened">Python for Loop</a>

</li>

<li>

<a href="while-loop-python.html" class="closed">Python while Loop</a>

</li>

<li>

<a href="break-and-continue-python.html" class="closed">Python break and continue</a>

</li>

<li>

<a href="pass-python.html" class="closed">Python Pass</a>

</li>

</ul>

</li>

<li>

<div class="link">Python Function<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="functions-python.html" class="closed">Getting Functions</a>

</li>

<li>

<a href="keyword-and-arguments-python.html" class="closed">Keyword and Arguments</a>

</li>

<li>

<a href="recursion-python.html" class="closed">Python Recursions</a>

</li>

<li>

<a href="anonymous-python.html" class="closed">Anonymous Function</a>

</li>

<li>

<a href="global-local-and-nonlocal-python.html" class="closed">Global, Local and Nonlocal</a>

</li>

<li>

<a href="global-local-and-nonlocal-python.html" class="closed">Python Global Keywords</a>

</li>

<li>

<a href="modules-python.html" class="closed">Python Modules</a>

</li>

<li>

<a href="package-python.html" class="closed">Python Packages</a>

</li>

</ul>

</li>

<li>

<div class="link">Python Data Types<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="numbers-python.html" class="closed">Python Numbers</a>

</li>

<li>

<a href="list-python.html" class="closed">Python List</a>

</li>

<li>

<a href="tuple-python.html" class="closed">Python Tuple</a>

</li>

<li>

<a href="string-python.html" class="closed">Python String</a>

</li>

<li>

<a href="set-python.html" class="closed">Python Set</a>

</li>

<li>

<a href="dictionary-python.html" class="closed">Python Dictionary</a>

</li>

</ul>

</li>

<li>

<div class="link">Python File Handeling<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="file-operation-python.html" class="closed">Python File Operation</a>

</li>

<li>

<a href="directory-and-file-management-python.html" class="closed">Python Dictionary</a>

</li>

<li>

<a href="exception-python.html" class="closed">Python Exception</a>

</li>

<li>

<a href="exception-handling-python.html" class="closed">Python Exception Handling</a>

</li>

<li>

<a href="user-defined-exception-python.html" class="closed">Python User-defined Exception</a>

</li>

</ul>

</li>

<li>

<div class="link">Python Object and Class<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="oop-python.html" class="closed">Python OOP</a>

</li>

<li>

<a href="class-python.html" class="closed">Python Class</a>

</li>

<li>

<a href="inheritance-python.html" class="closed">Python Inheritance</a>

</li>

<li>

<a href="multiple-inheritance-python.html" class="closed">Multiple Inheritance</a>

</li>

<li>

<a href="operator-overloading-python.html" class="closed">Operator Overloading</a>

</li>

</ul>

</li>

<li>

<div class="link">Python Advance Topics<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="iterator-python.html" class="closed">Python Iterator</a>

</li>

<li>

<a href="generator-python.html" class="closed">Python Generator</a>

</li>

<li>

<a href="closure-python.html" class="closed">Python Closure</a>

</li>

<li>

<a href="decorator-python.html" class="closed">Python Decorators</a>

</li>

<li>

<a href="properties-python.html" class="closed">Python Properties</a>

</li>

<li>

<a href="regex-python.html" class="closed">Python RegEx</a>

</li>

</ul>

</li>

<li>

<div class="link">Python Date and Time<i class="fa fa-chevron-down"></i>

</div>

<li>

<a href="datetime-python.html" class="closed">Python datetime Module</a>

</li>

<li>

<a href="datetime.strftime()-python.html" class="closed">Python datetime.strftime()</a>

</li>

<li>

<a href="datetime.strptime()-python.html" class="closed">Python datetime.strptime()</a>

</li>

<li>

<a href="current-date-and-time-python.html" class="closed">Current Date and Time</a>

</li>

<li>

<a href="get-current-time-python.html" class="closed">Get current time</a>

</li>

<li>

<a href="timestamp-to-datetime-python.html" class="closed">Timestamp to datetime</a>

</li>

<li>

<a href="time-module-python.html" class="closed">Python Time Module</a>

</li>

<li>

<a href="time.sleep-python.html" class="closed">Python time.sleep</a>

</li>

</ul>

</li>

</ul>

</section>

<br>

<!-- <div class="but mt-4">

    <button class="btn btn-md btn-primary "><a href="../dsa.html"><i

class="fas fa-arrow-left "></i> Back to Index</a></button>

</div> -->

<li class="breadcrumb-item"><a href="../python.html#languages">Python Index</a></li>

</ul>

</nav>

<br>

<h3>for loop in Python</h3>

<hr>

<p>

for loop in python differs a bit from other programming languages. Like in C,the user has the ability to define the iterationstep as well as halting condition.<br> But as we see in Python, for loop statement iterates over the item of any sequences. Here sequences are <b>list,tuple,string,set</b> etc.<br>

for loop is helpful in executing we can execute a set of statements, once for each item in the list,tuple,set etc.<br></p>

<b>Syntax:</b><br><br>

for x in sequence:

body of for loop

</code></pre>

<p> Here x is the variable which takes the value of the item present in the sequences(list,tuple,set etc.)<br>

The loop will run continously until it reaches the last item of the given sequence. Also in for loop, indentation is used to seperate the body of loop from the rest of code.<br>

</p>

<b>Example:</b><br><br>

lang=["Java","Pascal","Python","Ruby"]

for x in lang:

print(x)

</code></pre>

<b>Output:</b><br><br>

Java

Pascal

Python

Ruby

</code></pre>

<b>Example 2:</b><br><br>

<b>#program for sum of square</b><br>

numbers=[5,7,9,11]

sum=0

for x in numbers:

square=x**2 <b>#the operator ** is used for giving power</b>

sum=sum+square

print("The sum of square of numbers:",sum)

</cod></pre>

<b>Output:</b><br>

The sum of square of numbers:276

</code></pre>

<h3>The range() function</h3>

<p>range() is very helpful.This function is used to loop through a set of code for given number of times.<br>

For example,range(5) will loop for 0 to 4 in the particular sequence.<br>

<b>Note:</b>The given number in the range() is not taken, the range is upto preceding number.</p><br>

<b>Syntax:</b><br><br>

range(stop)

range(start,stop,step_size)

start=starting point

stop=stopping point

step_size=interval between start & stop

</code></pre>

<b>Example:</b><br><br>

print(range(7))

print(list(range(7)))

print(list(range(2,9))

print(list(range(2,16,2)))

</code></pre>

<b>Output</b><br><br>

range(0,7)

[0,1,2,3,4,5,6]

[2,3,4,5,6,7,8]

[2,4,6,8,10,12,14]

</code></pre>

<p>We can also use len() function with the range() function.Let's see an example</p>

<b>Example:</b><br><br>

mgenre=['Comedy','Thriller','Romance','Biography']

for x in range(len(mgenre)):

print("Movies of",mgenre[x])

</code></pre>

<b>Output:</b><br><br>

Movies of Comedy

Movies of Thriller

Movies of Romance

Movies of Biography

</code></pre>

</div>

<button class="btn btn-primary pull-right"><a href="while-loop-python.html">Next Topic <i

class="fas fa-arrow-right "></i><br/>Python while loop</a></button>

</div><br>

</section>

<h5>LEARN CODE DISCUSS</h5>

</div>

<li class="foot-header"><strong>CodeMistic</strong></li>

<li class="f-li"><a href="../terms-and-conditions.html" class="f-links">Terms of Service</a></li>

<li class="f-li"><a href="../privacy-policy.html" class="f-links">Privacy Policy</a></li>

</ul>

</div>

<li class="foot-header"><strong>LEARN</strong></li>

<li class="f-li"><a href="../python.html" class="f-links">Python</a></li>

</ul>

</div>

<li class="foot-header"><strong>CONTRIBUTE</strong></li>

<li class="f-li"><a href="https://docs.google.com/forms/d/e/1FAIpQLSduxk_aP9M1lqUAebQJwRXiVm2ukmdgv3T7gjBpOsr_gdeOcQ/viewform?usp=sf_link" class="f-links" target="_blank">Write an Article/Blog</a></li>

<li class="f-li"><a href="https://docs.google.com/forms/d/e/1FAIpQLSc2O28YJpxQc6kh2tKpI_Lf5MwfwGXVnhMs0g5EEXobJ4Beeg/viewform?usp=sf_link" class="f-links" target="_blank">Internships</a></li>

<li class="f-li"><a href="https://docs.google.com/forms/d/e/1FAIpQLSe9nr_Aw0fGIqm3_xWhqEzTr3UWdOFz-pvKpQvkAsosORYq9w/viewform?usp=sf_link" class="f-links" target="_blank">Videos</a></li>

<li class="f-li"><a href="https://docs.google.com/forms/d/e/1FAIpQLScOW3hJjxxwzPYL4u51oboc4T1aDtIUEIRa20hKPKu4UlcZAA/viewform?usp=sf_link" class="f-links" target="_blank">Donations/Funds</a></li>

</ul>

</div>

<a href="https://www.facebook.com/codemistic " target="_blank "><i class="icons fa-2x fab fa-facebook "

style="color:#3b5998; "></i></a>

<a href="https://www.instagram.com/codemistic " target="_blank "><i class="icons fa-2x fab fa-instagram "

style="color:#e95950; "></i></a>

<a href="https://www.twitter.com/codemistic " target="_blank "><i class="icons fa-2x fab fa-twitter "

style="color:#8accf5; "></i></a>

<a href="https://www.linkedin.com/company/codemistic " target="_blank "><i

class="icons fa-2x fab fa-linkedin " style="color:#88b3ee; "></i></a>

<a href="https://t.me/codemistic " target="_blank "><i class="icons fa-2x fab fa-telegram "

style="color:#65adda; "></i></a>

<a href="https://www.youtube.com/channel/UCS1Iv_kkgQGDwoXtvrlwlag " target="_blank "><i

class="icons fa-2x fab fa-youtube " style="color:red; "></i></a>

</div>

</footer>

integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj "

crossorigin="anonymous "></script>

integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo "

crossorigin="anonymous "></script>

integrity="sha384-OgVRvuATP1z7JjHLkuOU7Xw704+h835Lr+6QL9UvYjZE3Ipu6Tp75j7Bh/kR0JKI "

crossorigin="anonymous "></script>

</body>

</html>

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

FilesExpand file tree

keyword-for-loop-python.html

Latest commit

History

keyword-for-loop-python.html

File metadata and controls