{"id":42552,"date":"2026-06-15T09:01:17","date_gmt":"2026-06-15T06:01:17","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/python-ve-vs-code-kod-yazmaya-baslangic-rehberi\/"},"modified":"2026-06-15T09:01:53","modified_gmt":"2026-06-15T06:01:53","slug":"python-ve-vs-code-kod-yazmaya-baslangic-rehberi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/python-ve-vs-code-kod-yazmaya-baslangic-rehberi\/","title":{"rendered":"Python ve VS Code: Kod Yazmaya Ba\u015flang\u0131\u00e7 Rehberi"},"content":{"rendered":"<h2>Python ve VS Code: Kod Yazmaya Ba\u015flang\u0131\u00e7 Rehberi<\/h2>\n<p>Yaz\u0131l\u0131m d\u00fcnyas\u0131na ad\u0131m atmak m\u0131 istiyorsunuz? Python&#8217;un pop\u00fclerli\u011fi ve Visual Studio Code&#8217;un (VS Code) sundu\u011fu geli\u015ftirme kolayl\u0131klar\u0131yla kodlama ser\u00fcveninize ba\u015flamak hi\u00e7 bu kadar keyifli olmam\u0131\u015ft\u0131. Bu rehberde, Python&#8217;u bilgisayar\u0131n\u0131za nas\u0131l kuraca\u011f\u0131n\u0131z\u0131, g\u00fc\u00e7l\u00fc bir kod edit\u00f6r\u00fc olan VS Code&#8217;u nas\u0131l ayarlayaca\u011f\u0131n\u0131z\u0131 ve ilk Python uygulaman\u0131z\u0131 nas\u0131l yaz\u0131p \u00e7al\u0131\u015ft\u0131raca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m \u00f6\u011freneceksiniz. Haz\u0131rsan\u0131z, dijital d\u00fcnyada kendi izlerinizi b\u0131rakmaya ba\u015flayal\u0131m!<\/p>\n<h2>Neden Python ve VS Code ile Ba\u015flamal\u0131s\u0131n\u0131z?<\/h2>\n<p>Yaz\u0131l\u0131m geli\u015ftirme yolculu\u011funa \u00e7\u0131karken do\u011fru ara\u00e7lar\u0131 se\u00e7mek, ilerlemenizi h\u0131zland\u0131r\u0131r ve motivasyonunuzu y\u00fcksek tutar. Python, okunabilirli\u011fi y\u00fcksek s\u00f6zdizimi, geni\u015f k\u00fct\u00fcphane deste\u011fi ve \u00e7ok y\u00f6nl\u00fc kullan\u0131m alanlar\u0131 sayesinde hem yeni ba\u015flayanlar hem de deneyimli geli\u015ftiriciler i\u00e7in ideal bir programlama dilidir. Web geli\u015ftirmeden veri bilimine, yapay zekadan otomasyona kadar pek \u00e7ok alanda Python&#8217;un g\u00fcc\u00fcnden faydalanabilirsiniz. Di\u011fer yandan, Visual Studio Code (VS Code), Microsoft taraf\u0131ndan geli\u015ftirilen \u00fccretsiz ve a\u00e7\u0131k kaynakl\u0131 bir kod edit\u00f6r\u00fcd\u00fcr. Hafifli\u011fi, h\u0131zl\u0131\u011f\u0131, zengin eklenti ekosistemi ve sundu\u011fu ak\u0131ll\u0131 kod tamamlama, hata ay\u0131klama (debugging) gibi \u00f6zelliklerle geli\u015ftiricilerin vazge\u00e7ilmez ara\u00e7lar\u0131ndan biri haline gelmi\u015ftir. Bu ikilinin birle\u015fimi, kod yazmay\u0131 \u00f6\u011frenme s\u00fcrecinizi daha verimli ve keyifli hale getirecektir. Bir an d\u00fc\u015f\u00fcn\u00fcn, hayalinizdeki bir web sitesini veya bir otomasyon scriptini birka\u00e7 sat\u0131r kodla hayata ge\u00e7irebildi\u011finizi. \u0130\u015fte Python ve VS Code ile bu m\u00fcmk\u00fcn!<\/p>\n<h3>Python Kurulumu: Ad\u0131m Ad\u0131m Rehber<\/h3>\n<p>Python&#8217;u bilgisayar\u0131n\u0131za kurmak, kodlama ser\u00fcveninizin ilk ve en \u00f6nemli ad\u0131m\u0131d\u0131r. Bu s\u00fcre\u00e7 genellikle olduk\u00e7a basittir. \u00d6ncelikle, Python&#8217;un resmi web sitesi olan <a href=\"https:\/\/www.python.org\/\" target=\"_blank\">python.org<\/a> adresine gidin. Sitede &#8220;Downloads&#8221; (\u0130ndirmeler) b\u00f6l\u00fcm\u00fcne t\u0131klayarak i\u015fletim sisteminize uygun en son s\u00fcr\u00fcm\u00fc indirin. Windows, macOS ve Linux i\u00e7in ayr\u0131 s\u00fcr\u00fcmler bulunmaktad\u0131r. \u0130ndirme i\u015flemi tamamland\u0131ktan sonra, indirilen kurulum dosyas\u0131n\u0131 \u00e7al\u0131\u015ft\u0131r\u0131n. Kurulum sihirbaz\u0131 kar\u015f\u0131n\u0131za \u00e7\u0131kacakt\u0131r. Bu noktada dikkat etmeniz gereken en \u00f6nemli hususlardan biri, &#8220;Add Python X.X to PATH&#8221; (Python X.X&#8217;i PATH&#8217;e ekle) se\u00e7ene\u011fini i\u015faretlemektir. Bu se\u00e7enek, komut sat\u0131r\u0131ndan (terminal) Python komutlar\u0131n\u0131 daha kolay \u00e7al\u0131\u015ft\u0131rman\u0131z\u0131 sa\u011flar. E\u011fer bu ad\u0131m\u0131 atlar, sonradan PATH&#8217;i manuel olarak ayarlamakla u\u011fra\u015fmak istemezsiniz. Kurulumu varsay\u0131lan ayarlar ile devam ettirebilirsiniz; genellikle bu ayarlar \u00e7o\u011fu kullan\u0131c\u0131 i\u00e7in yeterlidir. Kurulum tamamland\u0131ktan sonra, bilgisayar\u0131n\u0131z\u0131 yeniden ba\u015flatman\u0131z gerekebilir. Kurulumun ba\u015far\u0131l\u0131 olup olmad\u0131\u011f\u0131n\u0131 kontrol etmek i\u00e7in komut sat\u0131r\u0131n\u0131 (Windows&#8217;ta CMD veya PowerShell, macOS\/Linux&#8217;ta Terminal) a\u00e7\u0131n ve \u015fu komutu yaz\u0131n:<\/p>\n<div class=\"code-container\">\n<pre><code>python --version<\/code><\/pre>\n<\/p><\/div>\n<p>E\u011fer kurulum ba\u015far\u0131l\u0131ysa, ekranda Python&#8217;un s\u00fcr\u00fcm numaras\u0131n\u0131 g\u00f6receksiniz. \u00d6rne\u011fin, <code>Python 3.10.4<\/code> gibi. Bu, Python&#8217;un sisteminizde ba\u015far\u0131yla kuruldu\u011funun bir i\u015faretidir. E\u011fer bir hata mesaj\u0131 al\u0131rsan\u0131z, &#8220;Add Python to PATH&#8221; se\u00e7ene\u011fini i\u015faretledi\u011finizden emin olarak kurulumu tekrarlayabilirsiniz. Baz\u0131 durumlarda, \u00f6zellikle Windows&#8217;ta, Python&#8217;un farkl\u0131 s\u00fcr\u00fcmleri y\u00fckl\u00fc olabilir. Bu durumlar i\u00e7in sanal ortamlar (virtual environments) kullanmak, projeleriniz aras\u0131ndaki ba\u011f\u0131ml\u0131l\u0131klar\u0131 y\u00f6netmek a\u00e7\u0131s\u0131ndan harika bir y\u00f6ntemdir. Ancak ba\u015flang\u0131\u00e7 i\u00e7in, tek bir g\u00fcncel s\u00fcr\u00fcm\u00fcn kurulumu yeterli olacakt\u0131r. Unutmay\u0131n, Python s\u00fcrekli g\u00fcncellenen bir dildir, bu nedenle belirli aral\u0131klarla yeni s\u00fcr\u00fcmleri kontrol etmek ve g\u00fcncellemeleri takip etmek faydal\u0131 olacakt\u0131r. Bu kurulum ad\u0131mlar\u0131, kodlama yolculu\u011funuzun temellerini olu\u015fturacakt\u0131r.<\/p>\n<h3>Visual Studio Code (VS Code) Kurulumu ve Ayarlar\u0131<\/h3>\n<p>Python&#8217;u kurduktan sonra, kodlar\u0131n\u0131z\u0131 yazaca\u011f\u0131n\u0131z bir ortama ihtiyac\u0131n\u0131z olacak. \u0130\u015fte burada Visual Studio Code (VS Code) devreye giriyor. VS Code, sadece bir metin edit\u00f6r\u00fc olman\u0131n \u00f6tesinde, kod yazmay\u0131 \u00e7ok daha kolay ve verimli hale getiren geli\u015fmi\u015f \u00f6zelliklere sahip bir Entegre Geli\u015ftirme Ortam\u0131 (IDE) olarak d\u00fc\u015f\u00fcn\u00fclebilir. \u0130lk olarak, VS Code&#8217;un resmi web sitesi olan <a href=\"https:\/\/code.visualstudio.com\/\" target=\"_blank\">code.visualstudio.com<\/a> adresine gidin ve i\u015fletim sisteminize uygun s\u00fcr\u00fcm\u00fc indirin. Kurulum sihirbaz\u0131 olduk\u00e7a basittir. Kurulum s\u0131ras\u0131nda &#8220;Add &#8216;Open with Code&#8217; action to Windows Explorer context menu&#8221; (Windows Gezgini ba\u011flam men\u00fcs\u00fcne &#8216;Kod ile A\u00e7&#8217; se\u00e7ene\u011fini ekle) gibi se\u00e7enekleri i\u015faretlemek, dosyalar\u0131n\u0131z\u0131 veya klas\u00f6rlerinizi sa\u011f t\u0131klayarak do\u011frudan VS Code ile a\u00e7man\u0131z\u0131 sa\u011flayacakt\u0131r. Bu, i\u015f ak\u0131\u015f\u0131n\u0131z\u0131 h\u0131zland\u0131racak pratik bir \u00f6zelliktir. Kurulum tamamland\u0131ktan sonra VS Code&#8217;u a\u00e7\u0131n. \u0130lk a\u00e7\u0131l\u0131\u015fta sizi ho\u015f bir kar\u015f\u0131lama ekran\u0131 ve varsay\u0131lan tema bekliyor olacak. \u015eimdi s\u0131ra geldi Python i\u00e7in gerekli eklentiyi y\u00fcklemeye. VS Code&#8217;un en g\u00fc\u00e7l\u00fc yanlar\u0131ndan biri, zengin eklenti (extension) ma\u011fazas\u0131d\u0131r. Sol taraftaki aktivite \u00e7ubu\u011funda bulunan &#8220;Extensions&#8221; (Uzant\u0131lar) ikonuna t\u0131klay\u0131n (genellikle d\u00f6rt kare \u015feklinde bir simgedir). A\u00e7\u0131lan arama \u00e7ubu\u011funa &#8220;Python&#8221; yaz\u0131n. Kar\u015f\u0131n\u0131za bir\u00e7ok Python ile ilgili eklenti \u00e7\u0131kacakt\u0131r. En \u00fcstte ve en \u00e7ok indirilenler aras\u0131nda yer alan Microsoft taraf\u0131ndan sunulan resmi &#8220;Python&#8221; eklentisini bulun ve &#8220;Install&#8221; (Y\u00fckle) d\u00fc\u011fmesine t\u0131klay\u0131n. Bu eklenti, Python kodunuzu renklendirme (syntax highlighting), otomatik tamamlama (intellisense), hata ay\u0131klama (debugging) ve sanal ortam (virtual environment) deste\u011fi gibi bir\u00e7ok temel \u00f6zelli\u011fi sa\u011flayacakt\u0131r. Eklenti y\u00fcklendikten sonra, VS Code&#8217;u yeniden ba\u015flatman\u0131z istenebilir. Eklentinin etkinle\u015fmesi i\u00e7in bu ad\u0131m\u0131 atlamay\u0131n. Art\u0131k VS Code, Python kodlar\u0131n\u0131z\u0131 yazmak ve \u00e7al\u0131\u015ft\u0131rmak i\u00e7in haz\u0131r. Temay\u0131 de\u011fi\u015ftirmek isterseniz, sol alttaki di\u015fli \u00e7ark ikonuna t\u0131klayarak &#8220;Color Theme&#8221; (Renk Temas\u0131) se\u00e7ene\u011finden diledi\u011finiz temay\u0131 se\u00e7ebilirsiniz. Koyu tema sevenler i\u00e7in &#8220;Dark+&#8221; gibi temalar olduk\u00e7a pop\u00fclerdir.<\/p>\n<h3>\u0130lk Python Uygulamas\u0131: &#8220;Merhaba D\u00fcnya!&#8221;<\/h3>\n<p>Her yeni programlama dilinde oldu\u011fu gibi, Python&#8217;a da &#8220;Merhaba D\u00fcnya!&#8221; ile ba\u015flamak bir gelenektir. Bu basit program, kodun \u00e7al\u0131\u015f\u0131p \u00e7al\u0131\u015fmad\u0131\u011f\u0131n\u0131 test etmenin yan\u0131 s\u0131ra, temel bir kod blo\u011funun nas\u0131l yaz\u0131ld\u0131\u011f\u0131n\u0131 anlaman\u0131za yard\u0131mc\u0131 olur. VS Code&#8217;u a\u00e7\u0131n ve &#8220;File&#8221; (Dosya) men\u00fcs\u00fcnden &#8220;New File&#8221; (Yeni Dosya) se\u00e7ene\u011fini t\u0131klayarak yeni bir dosya olu\u015fturun. Ard\u0131ndan, bu dosyay\u0131 &#8220;File&#8221; > &#8220;Save As&#8230;&#8221; (Farkl\u0131 Kaydet&#8230;) se\u00e7ene\u011fi ile kaydedin. Dosya ad\u0131n\u0131 \u00f6rne\u011fin <code>merhaba.py<\/code> olarak belirleyin. <code>.py<\/code> uzant\u0131s\u0131, bu dosyan\u0131n bir Python dosyas\u0131 oldu\u011funu belirtir. Dosyay\u0131 kaydettikten sonra, a\u015fa\u011f\u0131daki kodu yeni olu\u015fturdu\u011funuz dosyaya yaz\u0131n:<\/p>\n<div class=\"code-container\">\n<pre><code>print(\"Merhaba D\u00fcnya!\")<\/code><\/pre>\n<\/p><\/div>\n<p>Bu kod olduk\u00e7a basittir. <code>print()<\/code> fonksiyonu, parantez i\u00e7indeki metni (bu durumda &#8220;Merhaba D\u00fcnya!&#8221;) ekrana yazd\u0131rmak i\u00e7in kullan\u0131l\u0131r. Metinler, Python&#8217;da \u00e7ift t\u0131rnak (<code>\"<\/code>) veya tek t\u0131rnak (<code>'<\/code>) i\u00e7ine al\u0131n\u0131r. Kodu yazd\u0131\u011f\u0131n\u0131zda, VS Code&#8217;un Python eklentisi sayesinde <code>print<\/code> kelimesinin renklendi\u011fini ve parantezlerin do\u011fru \u015fekilde e\u015fle\u015fti\u011fini g\u00f6receksiniz. Bu, kod edit\u00f6r\u00fcn\u00fcz\u00fcn size yard\u0131mc\u0131 oldu\u011funun bir g\u00f6stergesidir. \u015eimdi bu kodu \u00e7al\u0131\u015ft\u0131rman\u0131n zaman\u0131 geldi. Bunun i\u00e7in birka\u00e7 farkl\u0131 yol bulunmaktad\u0131r. En basit y\u00f6ntemlerden biri, VS Code&#8217;un entegre terminalini kullanmakt\u0131r. Sol \u00fcst men\u00fcden &#8220;Terminal&#8221; > &#8220;New Terminal&#8221; (Yeni Terminal) se\u00e7ene\u011fini t\u0131klay\u0131n. Terminal penceresi VS Code&#8217;un alt\u0131nda a\u00e7\u0131lacakt\u0131r. E\u011fer dosyan\u0131z\u0131 <code>merhaba.py<\/code> olarak kaydettiyseniz ve terminalde bulundu\u011funuz dizin dosyan\u0131z\u0131n kaydedildi\u011fi yer ise, a\u015fa\u011f\u0131daki komutu yazarak kodu \u00e7al\u0131\u015ft\u0131rabilirsiniz:<\/p>\n<div class=\"code-container\">\n<pre><code>python merhaba.py<\/code><\/pre>\n<\/p><\/div>\n<p>E\u011fer Windows kullan\u0131yorsan\u0131z ve PATH ayarlar\u0131n\u0131 do\u011fru yapt\u0131ysan\u0131z <code>python<\/code> komutu \u00e7al\u0131\u015facakt\u0131r. Baz\u0131 sistemlerde <code>python3<\/code> komutunu kullanman\u0131z gerekebilir. Komutu \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131zda, terminalde \u015f\u00f6yle bir \u00e7\u0131kt\u0131 g\u00f6rmelisiniz:<\/p>\n<div class=\"code-container\">\n<pre><code>Merhaba D\u00fcnya!<\/code><\/pre>\n<\/p><\/div>\n<p>Tebrikler! \u0130lk Python uygulaman\u0131z\u0131 ba\u015far\u0131yla \u00e7al\u0131\u015ft\u0131rd\u0131n\u0131z. Bu k\u00fc\u00e7\u00fck ad\u0131m, sizi daha karma\u015f\u0131k programlar yazmaya haz\u0131rlayan b\u00fcy\u00fck bir ad\u0131md\u0131r. VS Code&#8217;un sa\u011f \u00fcst k\u00f6\u015fesindeki ye\u015fil &#8220;Run&#8221; (\u00c7al\u0131\u015ft\u0131r) d\u00fc\u011fmesine t\u0131klayarak da kodu \u00e7al\u0131\u015ft\u0131rabilirsiniz. Bu d\u00fc\u011fme, genellikle bir oynat (play) simgesi \u015feklindedir ve Python eklentisi y\u00fcklendi\u011finde otomatik olarak g\u00f6r\u00fcn\u00fcr.<\/p>\n<h3>Daha Fazla Kodlama Prati\u011fi: Basit Bir Hesap Makinesi<\/h3>\n<p> &#8220;Merhaba D\u00fcnya!&#8221; uygulamas\u0131yla Python&#8217;un temelini att\u0131ktan sonra, \u015fimdi biraz daha karma\u015f\u0131k bir \u00f6rnekle pratik yapal\u0131m. Kullan\u0131c\u0131n\u0131n girdi\u011fi iki say\u0131y\u0131 toplayan, \u00e7\u0131karan, \u00e7arpan ve b\u00f6len basit bir hesap makinesi program\u0131 yazal\u0131m. Bu \u00f6rnek, de\u011fi\u015fkenler, kullan\u0131c\u0131dan girdi alma, temel matematiksel i\u015flemler ve ko\u015fullu ifadeler gibi kavramlar\u0131 peki\u015ftirmenize yard\u0131mc\u0131 olacakt\u0131r. VS Code&#8217;da yeni bir dosya a\u00e7\u0131n ve ad\u0131n\u0131 <code>hesap_makinesi.py<\/code> olarak kaydedin. Ard\u0131ndan a\u015fa\u011f\u0131daki kodu yaz\u0131n:<\/p>\n<div class=\"code-container\">\n<pre><code>\ndef topla(x, y):\n    return x + y\n\ndef cikar(x, y):\n    return x - y\n\ndef carp(x, y):\n    return x * y\n\ndef bol(x, y):\n    if y == 0:\n        return \"Hata: S\u0131f\u0131ra b\u00f6lme!\"\n    else:\n        return x \/ y\n\nprint(\"L\u00fctfen bir i\u015flem se\u00e7in:\")\nprint(\"1. Topla\")\nprint(\"2. \u00c7\u0131kar\")\nprint(\"3. \u00c7arp\")\nprint(\"4. B\u00f6l\")\n\nwhile True:\n    secim = input(\"Se\u00e7iminiz (1\/2\/3\/4): \")\n\n    if secim in ('1', '2', '3', '4'):\n        try:\n            sayi1 = float(input(\"\u0130lk say\u0131y\u0131 girin: \"))\n            sayi2 = float(input(\"\u0130kinci say\u0131y\u0131 girin: \"))\n        except ValueError:\n            print(\"Ge\u00e7ersiz giri\u015f. L\u00fctfen say\u0131 girin.\")\n            continue\n\n        if secim == '1':\n            print(sayi1, \"+\", sayi2, \"=\", topla(sayi1, sayi2))\n        elif secim == '2':\n            print(sayi1, \"-\", sayi2, \"=\", cikar(sayi1, sayi2))\n        elif secim == '3':\n            print(sayi1, \"*\", sayi2, \"=\", carp(sayi1, sayi2))\n        elif secim == '4':\n            print(sayi1, \"\/\", sayi2, \"=\", bol(sayi1, sayi2))\n\n        sonraki_islem = input(\"Ba\u015fka bir i\u015flem yapmak ister misiniz? (evet\/hay\u0131r): \")\n        if sonraki_islem.lower() != 'evet':\n            break\n    else:\n        print(\"Ge\u00e7ersiz se\u00e7im. L\u00fctfen 1, 2, 3 veya 4 girin.\")\n        <\/code><\/pre>\n<\/p><\/div>\n<p>Bu kodda neler oluyor? \u0130lk olarak, toplama, \u00e7\u0131karma, \u00e7arpma ve b\u00f6lme i\u015flemleri i\u00e7in d\u00f6rt ayr\u0131 fonksiyon (function) tan\u0131mlad\u0131k. Fonksiyonlar, belirli bir g\u00f6revi yerine getiren kod bloklar\u0131d\u0131r ve program\u0131n\u0131z\u0131 daha d\u00fczenli hale getirir. <code>bol<\/code> fonksiyonunda s\u0131f\u0131ra b\u00f6lme hatas\u0131n\u0131 \u00f6nlemek i\u00e7in bir kontrol ekledik. Ard\u0131ndan, kullan\u0131c\u0131ya hangi i\u015flemi yapmak istedi\u011fini soran bir men\u00fc g\u00f6steriyoruz. <code>while True:<\/code> d\u00f6ng\u00fcs\u00fc, kullan\u0131c\u0131 \u00e7\u0131kmak isteyene kadar program\u0131n s\u00fcrekli \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar. <code>input()<\/code> fonksiyonu ile kullan\u0131c\u0131dan girdi al\u0131yoruz. Ald\u0131\u011f\u0131m\u0131z girdileri say\u0131ya d\u00f6n\u00fc\u015ft\u00fcrmek i\u00e7in <code>float()<\/code> fonksiyonunu kullan\u0131yoruz. Bu d\u00f6n\u00fc\u015f\u00fcm s\u0131ras\u0131nda bir hata olu\u015fursa (\u00f6rne\u011fin kullan\u0131c\u0131 say\u0131 yerine harf girerse), <code>try-except<\/code> blo\u011fu bu hatay\u0131 yakalar ve kullan\u0131c\u0131ya bir mesaj g\u00f6sterir. Son olarak, kullan\u0131c\u0131n\u0131n se\u00e7imine g\u00f6re ilgili fonksiyonu \u00e7a\u011f\u0131r\u0131yor ve sonucu ekrana yazd\u0131r\u0131yoruz. Kullan\u0131c\u0131 ba\u015fka bir i\u015flem yapmak istemezse d\u00f6ng\u00fcden \u00e7\u0131k\u0131yoruz. Bu program, ger\u00e7ek d\u00fcnya senaryolar\u0131nda kar\u015f\u0131la\u015fabilece\u011finiz temel programlama mant\u0131\u011f\u0131n\u0131 anlamak i\u00e7in harika bir \u00f6rnektir. Bir web sitesindeki basit bir hesaplama arac\u0131 veya bir mobil uygulamadaki temel matematiksel i\u015flemler bu mant\u0131k \u00fczerine kuruludur.<\/p>\n<h3>VS Code&#8217;da Hata Ay\u0131klama (Debugging) Nas\u0131l Yap\u0131l\u0131r?<\/h3>\n<p>Kod yazarken hatalar yapmak ka\u00e7\u0131n\u0131lmazd\u0131r. \u00d6nemli olan, bu hatalar\u0131 h\u0131zl\u0131 ve etkili bir \u015fekilde bulup d\u00fczeltmektir. VS Code, g\u00fc\u00e7l\u00fc bir hata ay\u0131klama (debugging) aray\u00fcz\u00fc sunar. Hesap makinesi \u00f6rne\u011fimizi kullanarak hata ay\u0131klamay\u0131 deneyelim. \u00d6ncelikle, kodunuzun belirli bir sat\u0131r\u0131nda \u00e7al\u0131\u015fmay\u0131 durdurmak ve o anki de\u011fi\u015fken de\u011ferlerini incelemek i\u00e7in &#8220;kesme noktalar\u0131&#8221; (breakpoints) kullan\u0131r\u0131z. VS Code&#8217;da, sat\u0131r numaras\u0131n\u0131n solundaki bo\u015f alana t\u0131klayarak bir kesme noktas\u0131 ekleyebilirsiniz. \u00d6rne\u011fin, <code>sayi1 = float(input(\"\u0130lk say\u0131y\u0131 girin: \"))<\/code> sat\u0131r\u0131n\u0131n solundaki alana t\u0131klay\u0131n. Ard\u0131ndan, VS Code&#8217;un sol taraf\u0131ndaki aktivite \u00e7ubu\u011funda bulunan &#8220;Run and Debug&#8221; (\u00c7al\u0131\u015ft\u0131r ve Hata Ay\u0131kla) ikonuna t\u0131klay\u0131n (genellikle bir hata ay\u0131klay\u0131c\u0131 simgesidir). Kar\u015f\u0131n\u0131za \u00e7\u0131kan men\u00fcden &#8220;Run and Debug&#8221; se\u00e7ene\u011fini se\u00e7in. E\u011fer daha \u00f6nce bir hata ay\u0131klama yap\u0131land\u0131rmas\u0131 yapmad\u0131ysan\u0131z, VS Code size &#8220;launch.json&#8221; dosyas\u0131 olu\u015fturman\u0131z\u0131 \u00f6nerecektir. Bu dosyada, hangi program\u0131n nas\u0131l \u00e7al\u0131\u015ft\u0131r\u0131laca\u011f\u0131 gibi ayarlar bulunur. Genellikle varsay\u0131lan ayarlar yeterli olacakt\u0131r. VS Code, otomatik olarak <code>launch.json<\/code> dosyas\u0131n\u0131 olu\u015fturacak ve hata ay\u0131klama oturumunu ba\u015flatacakt\u0131r. Kodunuz, belirledi\u011finiz kesme noktas\u0131na geldi\u011finde duracakt\u0131r. Durdu\u011funda, VS Code&#8217;un \u00fcst k\u0131sm\u0131nda bir hata ay\u0131klama kontrol paneli belirecektir. Bu panelde:<\/p>\n<ul>\n<li>&#8220;Continue&#8221; (Devam Et): Program\u0131n bir sonraki kesme noktas\u0131na kadar \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flar.<\/li>\n<li>&#8220;Step Over&#8221; (Sonraki Sat\u0131ra Ge\u00e7): Mevcut sat\u0131r\u0131 \u00e7al\u0131\u015ft\u0131r\u0131r ve bir sonraki sat\u0131ra ge\u00e7er. E\u011fer mevcut sat\u0131rda bir fonksiyon \u00e7a\u011fr\u0131s\u0131 varsa, fonksiyonun i\u00e7ine girmez, sadece fonksiyonu \u00e7al\u0131\u015ft\u0131r\u0131p sonraki sat\u0131ra ge\u00e7er.<\/li>\n<li>&#8220;Step Into&#8221; (\u0130\u00e7ine Gir): Mevcut sat\u0131r\u0131 \u00e7al\u0131\u015ft\u0131r\u0131r ve e\u011fer bir fonksiyon \u00e7a\u011fr\u0131s\u0131 varsa, fonksiyonun i\u00e7ine girer.<\/li>\n<li>&#8220;Step Out&#8221; (D\u0131\u015f\u0131na \u00c7\u0131k): Mevcut fonksiyonun tamamlanmas\u0131n\u0131 bekler ve fonksiyonun \u00e7a\u011fr\u0131ld\u0131\u011f\u0131 yere d\u00f6ner.<\/li>\n<li>&#8220;Restart&#8221; (Yeniden Ba\u015flat): Hata ay\u0131klama oturumunu yeniden ba\u015flat\u0131r.<\/li>\n<li>&#8220;Stop&#8221; (Durdur): Hata ay\u0131klama oturumunu sonland\u0131r\u0131r.<\/li>\n<\/ul>\n<p>Sol tarafta ise &#8220;Variables&#8221; (De\u011fi\u015fkenler) b\u00f6l\u00fcm\u00fcnde, program\u0131n o anki durumundaki t\u00fcm de\u011fi\u015fkenlerin de\u011ferlerini g\u00f6rebilirsiniz. Bu, bir hatan\u0131n kayna\u011f\u0131n\u0131 bulmak i\u00e7in inan\u0131lmaz derecede de\u011ferlidir. \u00d6rne\u011fin, bir say\u0131n\u0131n bekledi\u011finizden farkl\u0131 bir de\u011fer ald\u0131\u011f\u0131n\u0131 fark edebilirsiniz. &#8220;Watch&#8221; (\u0130zle) b\u00f6l\u00fcm\u00fcne belirli de\u011fi\u015fkenleri ekleyerek, onlar\u0131n de\u011ferlerindeki de\u011fi\u015fimleri s\u00fcrekli takip edebilirsiniz. Hata ay\u0131klama, kodunuzu daha sa\u011flam hale getirmenin ve karma\u015f\u0131k sorunlar\u0131 \u00e7\u00f6zmenin en etkili yollar\u0131ndan biridir. Bu beceriyi kazanmak, sizi di\u011fer geli\u015ftiricilerden bir ad\u0131m \u00f6ne ta\u015f\u0131yacakt\u0131r.<\/p>\n<h3>Vaka Analizi: Basit Bir Stok Takip Sistemi<\/h3>\n<p>Bir e-ticaret sitesi veya k\u00fc\u00e7\u00fck bir d\u00fckkan i\u00e7in stok takibi yapmak, i\u015flerin d\u00fczenli y\u00fcr\u00fcmesi i\u00e7in kritik \u00f6neme sahiptir. Python ve VS Code kullanarak, bu s\u00fcreci otomatikle\u015ftiren basit bir stok takip sistemi geli\u015ftirebiliriz. Hayal edin ki, her g\u00fcn manuel olarak stoklar\u0131 kontrol etmek yerine, bilgisayar\u0131n\u0131z size hangi \u00fcr\u00fcnlerin azald\u0131\u011f\u0131n\u0131 haber veriyor. Bu, hem zaman kazand\u0131r\u0131r hem de olas\u0131 sat\u0131\u015f kay\u0131plar\u0131n\u0131 \u00f6nler. Bu sistem, \u00fcr\u00fcnlerin ad\u0131n\u0131, mevcut stok miktar\u0131n\u0131 ve minimum stok seviyesini tutacakt\u0131r. Yeni \u00fcr\u00fcn ekleme, stok g\u00fcncelleme, stok seviyesi d\u00fc\u015f\u00fck \u00fcr\u00fcnleri listeleme gibi temel i\u015flevlere sahip olabilir.<\/p>\n<p>Bu sistemin temelini \u015fu \u015fekilde tasarlayabiliriz:<\/p>\n<ul>\n<li><strong>Veri Yap\u0131s\u0131:<\/strong> \u00dcr\u00fcn bilgilerini saklamak i\u00e7in bir s\u00f6zl\u00fck (dictionary) veya liste (list) kullanabiliriz. Her \u00fcr\u00fcn i\u00e7in anahtar olarak \u00fcr\u00fcn ad\u0131n\u0131, de\u011fer olarak ise bir ba\u015fka s\u00f6zl\u00fck i\u00e7inde stok miktar\u0131 ve minimum stok seviyesini tutabiliriz.<\/li>\n<li><strong>Fonksiyonlar:<\/strong><\/li>\n<ul>\n<li><code>urun_ekle(urun_adi, stok, min_stok):<\/code> Yeni bir \u00fcr\u00fcn ekler.<\/li>\n<li><code>stok_guncelle(urun_adi, miktar):<\/code> Mevcut bir \u00fcr\u00fcn\u00fcn stok miktar\u0131n\u0131 g\u00fcnceller. Miktar pozitifse stok ekler, negatifse stoktan d\u00fc\u015fer.<\/li>\n<li><code>stok_azalt(urun_adi, miktar):<\/code> Belirtilen miktarda sto\u011fu azalt\u0131r. Stok seviyesi minimumun alt\u0131na d\u00fc\u015ferse uyar\u0131 verir.<\/li>\n<li><code>stok_listele():<\/code> T\u00fcm \u00fcr\u00fcnlerin mevcut stoklar\u0131n\u0131 listeler.<\/li>\n<li><code>dusun_stoklari_listele():<\/code> Stok seviyesi minimumun alt\u0131na d\u00fc\u015fen \u00fcr\u00fcnleri listeler.<\/li>\n<\/ul>\n<li><strong>Kullan\u0131c\u0131 Aray\u00fcz\u00fc:<\/strong> Basit bir metin tabanl\u0131 men\u00fc ile kullan\u0131c\u0131lar\u0131n bu fonksiyonlar\u0131 se\u00e7mesini sa\u011flayabiliriz.<\/li>\n<\/ul>\n<p>Bu basit stok takip sistemi, Python&#8217;un dosya i\u015flemleri (verileri kal\u0131c\u0131 olarak saklamak i\u00e7in) ve veri yap\u0131lar\u0131 konusundaki yeteneklerini sergilemek i\u00e7in harika bir ba\u015flang\u0131\u00e7 noktas\u0131d\u0131r. Ger\u00e7ek d\u00fcnya uygulamalar\u0131nda bu t\u00fcr sistemler, veritabanlar\u0131 (databases) ile entegre edilerek \u00e7ok daha karma\u015f\u0131k hale getirilir. Ancak temel mant\u0131k bu \u00f6rnekteki gibidir. Bir yaz\u0131l\u0131m geli\u015ftirici olarak, b\u00f6yle bir sistemin potansiyelini d\u00fc\u015f\u00fcnmek, i\u015f s\u00fcre\u00e7lerini nas\u0131l iyile\u015ftirebilece\u011finizi g\u00f6rmenizi sa\u011flar.<\/p>\n<h3>\u0130leri D\u00fczey \u0130pu\u00e7lar\u0131 ve En \u0130yi Pratikler<\/h3>\n<p>Python ve VS Code ile temel bilgileri edindikten sonra, kodlama becerilerinizi daha da ileriye ta\u015f\u0131mak i\u00e7in baz\u0131 ipu\u00e7lar\u0131 ve en iyi pratikleri g\u00f6zden ge\u00e7irelim. Bu ipu\u00e7lar\u0131, hem kodunuzun kalitesini art\u0131racak hem de daha verimli \u00e7al\u0131\u015fman\u0131za yard\u0131mc\u0131 olacakt\u0131r. \u00d6ncelikle, <strong>sanal ortamlar (virtual environments)<\/strong> kullanmay\u0131 al\u0131\u015fkanl\u0131k haline getirin. Projeleriniz i\u00e7in ayr\u0131 sanal ortamlar olu\u015fturmak, farkl\u0131 projelerin birbirlerinin ba\u011f\u0131ml\u0131l\u0131klar\u0131n\u0131 etkilemesini \u00f6nler. VS Code, sanal ortamlar\u0131 y\u00f6netmek i\u00e7in harika bir entegrasyona sahiptir. Terminalde <code>python -m venv .venv<\/code> komutuyla bir sanal ortam olu\u015fturabilir ve ard\u0131ndan <code>source .venv\/bin\/activate<\/code> (Linux\/macOS) veya <code>.venv\\Scripts\\activate<\/code> (Windows) komutuyla etkinle\u015ftirebilirsiniz. \u0130kinci olarak, <strong>kodunuzu okunabilir hale getirin<\/strong>. Python&#8217;un PEP 8 stil k\u0131lavuzuna uymak, kodunuzun daha anla\u015f\u0131l\u0131r olmas\u0131n\u0131 sa\u011flar. Anlaml\u0131 de\u011fi\u015fken ve fonksiyon isimleri kullanmak, yeterli yorum sat\u0131rlar\u0131 eklemek ve kodunuzu mant\u0131ksal bloklara ay\u0131rmak, hem sizin hem de sizinle birlikte \u00e7al\u0131\u015fan di\u011fer geli\u015ftiricilerin kodunuzu daha kolay anlamas\u0131na yard\u0131mc\u0131 olur. \u00dc\u00e7\u00fcnc\u00fc olarak, <strong>hata ay\u0131klamay\u0131 (debugging) etkin kullan\u0131n<\/strong>. Sadece hatalar\u0131 bulmak i\u00e7in de\u011fil, ayn\u0131 zamanda kodunuzun nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlamak i\u00e7in de hata ay\u0131klama ara\u00e7lar\u0131n\u0131 kullan\u0131n. Bu, program\u0131n\u0131z\u0131n mant\u0131\u011f\u0131n\u0131 daha iyi kavraman\u0131za yard\u0131mc\u0131 olacakt\u0131r. D\u00f6rd\u00fcnc\u00fc olarak, <strong>versiyon kontrol sistemlerini (version control systems)<\/strong> \u00f6\u011frenin. Git gibi sistemler, kodunuzun ge\u00e7mi\u015fini takip etmenizi, de\u011fi\u015fiklikleri y\u00f6netmenizi ve ba\u015fkalar\u0131yla i\u015fbirli\u011fi yapman\u0131z\u0131 sa\u011flar. GitHub veya GitLab gibi platformlar, projelerinizi bar\u0131nd\u0131rmak ve payla\u015fmak i\u00e7in harika yerlerdir. Be\u015finci olarak, <strong>belgeleme (documentation)<\/strong> yapmay\u0131 unutmay\u0131n. Fonksiyonlar\u0131n\u0131z\u0131n ne i\u015fe yarad\u0131\u011f\u0131n\u0131, hangi parametreleri ald\u0131\u011f\u0131n\u0131 ve ne d\u00f6nd\u00fcrd\u00fc\u011f\u00fcn\u00fc a\u00e7\u0131klayan dok\u00fcmantasyon dizeleri (docstrings) yazmak, kodunuzu kullananlar i\u00e7in b\u00fcy\u00fck bir kolayl\u0131k sa\u011flar. Son olarak, <strong>s\u00fcrekli \u00f6\u011frenmeye a\u00e7\u0131k olun<\/strong>. Python ekosistemi s\u00fcrekli geli\u015fiyor. Yeni k\u00fct\u00fcphaneler, ara\u00e7lar ve teknikler ortaya \u00e7\u0131k\u0131yor. Bloglar\u0131 takip etmek, online kurslar almak ve topluluklara kat\u0131lmak, g\u00fcncel kalman\u0131z\u0131 sa\u011flayacakt\u0131r.<\/p>\n<h2>Sonu\u00e7 ve S\u0131k\u00e7a Sorulan Sorular<\/h2>\n<p>Bu rehberde, Python&#8217;u bilgisayar\u0131n\u0131za nas\u0131l kuraca\u011f\u0131n\u0131z\u0131, VS Code&#8217;u nas\u0131l ayarlayaca\u011f\u0131n\u0131z\u0131 ve ilk Python uygulaman\u0131z\u0131 nas\u0131l yaz\u0131p \u00e7al\u0131\u015ft\u0131raca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m \u00f6\u011frendik. Basit &#8220;Merhaba D\u00fcnya!&#8221; uygulamas\u0131ndan daha karma\u015f\u0131k bir hesap makinesi \u00f6rne\u011fine ve hatta bir vaka analizi ile stok takip sistemi konseptine kadar pek \u00e7ok konuya de\u011findik. Ayr\u0131ca, kod kalitesini art\u0131rmak ve daha verimli \u00e7al\u0131\u015fmak i\u00e7in ileri d\u00fczey ipu\u00e7lar\u0131 ve en iyi pratikleri de payla\u015ft\u0131k. Unutmay\u0131n, yaz\u0131l\u0131m geli\u015ftirme bir yolculuktur ve her yeni beceri, bu yolculukta sizi daha ileriye ta\u015f\u0131yacakt\u0131r. Python ve VS Code, bu yolculukta size g\u00fc\u00e7l\u00fc bir ba\u015flang\u0131\u00e7 yapma imkan\u0131 sunuyor. Art\u0131k kendi fikirlerinizi koda d\u00f6kmeye haz\u0131rs\u0131n\u0131z!<\/p>\n<h3>S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n<ol>\n<li>\n            <strong>Python&#8217;un farkl\u0131 s\u00fcr\u00fcmleri var m\u0131? Hangi s\u00fcr\u00fcm\u00fc y\u00fcklemeliyim?<\/strong><\/p>\n<p>Evet, Python&#8217;un bir\u00e7ok s\u00fcr\u00fcm\u00fc bulunmaktad\u0131r. Genellikle en son kararl\u0131 s\u00fcr\u00fcm\u00fc y\u00fcklemeniz \u00f6nerilir. \u015eu anda (yaz\u0131n\u0131n yaz\u0131ld\u0131\u011f\u0131 tarih itibar\u0131yla) Python 3.x serisi tercih edilmektedir. Python 2.x s\u00fcr\u00fcm\u00fc art\u0131k desteklenmemektedir. Python.org adresinden en g\u00fcncel s\u00fcr\u00fcm\u00fc indirebilirsiniz.<\/p>\n<\/li>\n<li>\n            <strong>VS Code&#8217;da Python eklentisini y\u00fckledikten sonra hala kodumu \u00e7al\u0131\u015ft\u0131ram\u0131yorum, ne yapmal\u0131y\u0131m?<\/strong><\/p>\n<p>Bu durum genellikle PATH ayarlar\u0131ndan veya VS Code&#8217;un do\u011fru Python yorumlay\u0131c\u0131s\u0131n\u0131 (interpreter) alg\u0131layamamas\u0131ndan kaynaklanabilir. \u00d6ncelikle, Python&#8217;u kurarken &#8220;Add Python to PATH&#8221; se\u00e7ene\u011fini i\u015faretledi\u011finizden emin olun. Ard\u0131ndan VS Code&#8217;da, sol alt k\u00f6\u015fedeki Python s\u00fcr\u00fcm\u00fcne t\u0131klayarak veya &#8220;Ctrl+Shift+P&#8221; (veya Mac&#8217;te Cmd+Shift+P) tu\u015flar\u0131na bas\u0131p &#8220;Python: Select Interpreter&#8221; komutunu aratarak do\u011fru Python yorumlay\u0131c\u0131s\u0131n\u0131 se\u00e7ti\u011finizden emin olun. E\u011fer sanal ortam kullan\u0131yorsan\u0131z, sanal ortam\u0131n\u0131z\u0131n etkinle\u015ftirildi\u011finden emin olun.<\/p>\n<\/li>\n<li>\n            <strong>Kodumu \u00e7al\u0131\u015ft\u0131r\u0131rken &#8220;invalid syntax&#8221; hatas\u0131 al\u0131yorum, bu ne anlama geliyor?<\/strong><\/p>\n<p>&#8220;Invalid syntax&#8221; hatas\u0131, yazd\u0131\u011f\u0131n\u0131z kodun Python dilbilgisine uymad\u0131\u011f\u0131 anlam\u0131na gelir. Bu genellikle bir yaz\u0131m hatas\u0131, eksik bir parantez, yanl\u0131\u015f kullan\u0131lan bir anahtar kelime veya t\u0131rnak i\u015faretlerinin eksikli\u011fi gibi nedenlerden kaynaklan\u0131r. VS Code&#8217;un renkli kodlama ve hata vurgulama \u00f6zellikleri bu t\u00fcr hatalar\u0131 bulman\u0131za yard\u0131mc\u0131 olabilir. Hatay\u0131 ald\u0131\u011f\u0131n\u0131z sat\u0131r\u0131 dikkatlice inceleyin.<\/p>\n<\/li>\n<li>\n            <strong>Python ile sadece basit scriptler mi yazabilirim, yoksa daha b\u00fcy\u00fck projeler geli\u015ftirebilir miyim?<\/strong><\/p>\n<p>Python son derece g\u00fc\u00e7l\u00fc ve \u00e7ok y\u00f6nl\u00fc bir dildir. Sadece basit scriptler de\u011fil, ayn\u0131 zamanda karma\u015f\u0131k web uygulamalar\u0131 (Django, Flask gibi framework&#8217;ler ile), veri analizi projeleri, makine \u00f6\u011frenmesi modelleri, masa\u00fcst\u00fc uygulamalar\u0131 ve hatta oyunlar geli\u015ftirmek i\u00e7in de kullan\u0131l\u0131r. Python&#8217;un geni\u015f k\u00fct\u00fcphane deste\u011fi, bu t\u00fcr b\u00fcy\u00fck projeleri ger\u00e7ekle\u015ftirmeyi kolayla\u015ft\u0131r\u0131r.<\/p>\n<\/li>\n<\/ol>\n<p>#Python #VSCode #Programlama #Yaz\u0131l\u0131mGeli\u015ftirme #Kodlama<\/p>\n<div class=\"github-example-link\"><strong>\u00d6rnek kod:<\/strong> <a href=\"https:\/\/github.com\/fatihsoysalcom\/simple-python-interactive-greeting\" target=\"_blank\" rel=\"noopener noreferrer\">github.com\/fatihsoysalcom\/simple-python-interactive-greeting<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"Yaz\u0131l\u0131m d\u00fcnyas\u0131na ad\u0131m atmak m\u0131 istiyorsunuz? Python&#8217;un pop\u00fclerli\u011fi ve Visual Studio Code&#8217;un (VS Code) sundu\u011fu geli\u015ftirme kolayl\u0131klar\u0131yla kodlama ser\u00fcveninize ba\u015flamak hi\u00e7 bu kadar keyifli olmam\u0131\u015ft\u0131.","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1403],"tags":[],"class_list":{"0":"post-42552","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-python","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Python ve VS Code: Kod Yazmaya Ba\u015flang\u0131\u00e7 Rehberi - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/python-ve-vs-code-kod-yazmaya-baslangic-rehberi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python ve VS Code: Kod Yazmaya Ba\u015flang\u0131\u00e7 Rehberi\" \/>\n<meta property=\"og:description\" content=\"Yaz\u0131l\u0131m d\u00fcnyas\u0131na ad\u0131m atmak m\u0131 istiyorsunuz? 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