Python, dinamik ve esnek bir programlama dilidir. Bu esnekli\u011fin bir par\u00e7as\u0131 da farkl\u0131 veri tipleri aras\u0131nda kolayca ge\u00e7i\u015f yapabilme yetene\u011fidir. Programlama yaparken, kullan\u0131c\u0131dan al\u0131nan veriler genellikle string (metin) format\u0131nda olurken, matematiksel i\u015flemler i\u00e7in integer (tam say\u0131) format\u0131na ihtiya\u00e7 duyar\u0131z. Benzer \u015fekilde, say\u0131sal sonu\u00e7lar\u0131 kullan\u0131c\u0131ya g\u00f6stermek veya bir dosyaya yazmak i\u00e7in tekrar string’e d\u00f6n\u00fc\u015ft\u00fcrmek gerekebilir. Bu rehberde, Python’da string’den integer’a ve integer’dan string’e d\u00f6n\u00fc\u015f\u00fcm\u00fcn temel y\u00f6ntemlerini, inceliklerini, hata y\u00f6netimini ve pratik kullan\u0131m alanlar\u0131n\u0131 detayl\u0131ca inceleyece\u011fiz.<\/p>\n
int()<\/code> Fonksiyonu<\/h3>\nPython’da bir string’i integer’a d\u00f6n\u00fc\u015ft\u00fcrmenin birincil yolu int()<\/code> yerle\u015fik fonksiyonunu kullanmakt\u0131r. Bu fonksiyon, say\u0131sal bir string ifadesini alarak kar\u015f\u0131l\u0131k gelen tam say\u0131 de\u011ferini d\u00f6nd\u00fcr\u00fcr.<\/p>\nTemel Kullan\u0131m<\/h4>\n
int()<\/code> fonksiyonunun en basit kullan\u0131m\u0131, sadece bir say\u0131sal string arg\u00fcman\u0131 almas\u0131d\u0131r:<\/p>\nsayi_string = \"123\"\nsayi_int = int(sayi_string)\nprint(sayi_int)\nprint(type(sayi_int))\n\n\u00c7\u0131kt\u0131:<\/h2>\n123<\/h2>\n<\/code><\/pre>\n<\/h2>\nint()<\/code> fonksiyonu, string’in ba\u015f\u0131nda veya sonunda bo\u015fluk karakterleri olsa bile bunlar\u0131 otomatik olarak kald\u0131r\u0131r ve d\u00f6n\u00fc\u015f\u00fcm\u00fc ba\u015far\u0131yla ger\u00e7ekle\u015ftirir:<\/p>\nbosluklu_sayi_string = \" 456 \"\nsayi_int_bosluklu = int(bosluklu_sayi_string)\nprint(sayi_int_bosluklu)\nprint(type(sayi_int_bosluklu))\n\n\u00c7\u0131kt\u0131:<\/h2>\n456<\/h2>\n<\/code><\/pre>\n<\/h2>\nHata Y\u00f6netimi: ValueError<\/code><\/h4>\nint()<\/code> fonksiyonu, d\u00f6n\u00fc\u015ft\u00fcrmeye \u00e7al\u0131\u015ft\u0131\u011f\u0131 string’in ge\u00e7erli bir tam say\u0131 ifadesi olmamas\u0131 durumunda bir ValueError<\/code> hatas\u0131 f\u0131rlat\u0131r. Bu, \u00f6zellikle kullan\u0131c\u0131 giri\u015flerini i\u015flerken veya harici kaynaklardan veri al\u0131rken dikkat edilmesi gereken \u00f6nemli bir noktad\u0131r.<\/p>\nhatali_string = \"abc\"\nsayi_int_hatali = int(hatali_string) # Bu sat\u0131r ValueError hatas\u0131 verir<\/h2>\n\nondalikli_string = \"3.14\"\nsayi_int_ondalikli = int(ondalikli_string) # Bu sat\u0131r da ValueError hatas\u0131 verir<\/code><\/pre>\n<\/h2>\n
Bu t\u00fcr hatalar\u0131 y\u00f6netmek i\u00e7in try-except<\/code> bloklar\u0131n\u0131 kullanmak en iyi uygulamad\u0131r. Bu sayede program\u0131n\u0131z\u0131n beklenmedik giri\u015fler kar\u015f\u0131s\u0131nda \u00e7\u00f6kmesini engelleyebilir ve kullan\u0131c\u0131ya anlaml\u0131 geri bildirimler sunabilirsiniz.<\/p>\ndef string_to_int_guvenli(s):\n try:\n return int(s)\n except ValueError:\n print(f\"Hata: '{s}' ge\u00e7erli bir tam say\u0131 de\u011fil.\")\n return None # Hata durumunda None d\u00f6nd\u00fcrebiliriz veya farkl\u0131 bir de\u011fer\n\nprint(string_to_int_guvenli(\"789\"))\nprint(string_to_int_guvenli(\"hello\"))\nprint(string_to_int_guvenli(\"10.5\"))\n\n\u00c7\u0131kt\u0131:<\/h2>\n789<\/h2>\nHata: 'hello' ge\u00e7erli bir tam say\u0131 de\u011fil.<\/h2>\nNone<\/h2>\nHata: '10.5' ge\u00e7erli bir tam say\u0131 de\u011fil.<\/h2>\nNone<\/code><\/pre>\n<\/h2>\nFarkl\u0131 Say\u0131 Tabanlar\u0131 ile \u00c7al\u0131\u015fma<\/h4>\n
int()<\/code> fonksiyonu, sadece onluk (decimal) tabandaki say\u0131lar\u0131 de\u011fil, ayn\u0131 zamanda ikilik (binary), sekizlik (octal) ve onalt\u0131l\u0131k (hexadecimal) gibi farkl\u0131 say\u0131 tabanlar\u0131ndaki string ifadeleri de integer’a d\u00f6n\u00fc\u015ft\u00fcrebilir. Bunun i\u00e7in int()<\/code> fonksiyonunun ikinci parametresi olan base<\/code> (taban) kullan\u0131l\u0131r.<\/p>\n* \u0130kilik (Binary – Taban 2):<\/strong> String “0b” veya “0B” ile ba\u015flarsa, base=2<\/code> belirtmeye gerek yoktur.
\n* Sekizlik (Octal – Taban 8):<\/strong> String “0o” veya “0O” ile ba\u015flarsa, base=8<\/code> belirtmeye gerek yoktur.
\n* Onalt\u0131l\u0131k (Hexadecimal – Taban 16):<\/strong> String “0x” veya “0X” ile ba\u015flarsa, base=16<\/code> belirtmeye gerek yoktur.<\/p>\n\u00d6rnekler:<\/p>\n
# Onluk taban (varsay\u0131lan)\nprint(int(\"10\")) # 10\n\n\u0130kilik taban<\/h2>\nprint(int(\"101\", 2)) # 5 (12^2 + 0<\/em>2^1 + 1*2^0)\nprint(int(\"0b101\")) # 5 (Python otomatik tan\u0131r)\n\nSekizlik taban<\/h2>\nprint(int(\"12\", 8)) # 10 (18^1 + 2<\/em>8^0)\nprint(int(\"0o12\")) # 10 (Python otomatik tan\u0131r)\n\nOnalt\u0131l\u0131k taban<\/h2>\nprint(int(\"A\", 16)) # 10\nprint(int(\"FF\", 16)) # 255\nprint(int(\"0xFF\")) # 255 (Python otomatik tan\u0131r)<\/code><\/pre>\nOndal\u0131kl\u0131 Say\u0131 Dizelerinin D\u00f6n\u00fc\u015f\u00fcm\u00fc<\/h4>\n
Yukar\u0131da belirtildi\u011fi gibi, int()<\/code> fonksiyonu do\u011frudan “3.14” gibi ondal\u0131kl\u0131 say\u0131 i\u00e7eren string’leri integer’a d\u00f6n\u00fc\u015ft\u00fcremez ve ValueError<\/code> f\u0131rlat\u0131r. E\u011fer bir ondal\u0131kl\u0131 say\u0131 string’ini tam say\u0131ya d\u00f6n\u00fc\u015ft\u00fcrmek istiyorsan\u0131z, \u00f6nce float()<\/code> fonksiyonu ile float’a d\u00f6n\u00fc\u015ft\u00fcrmeli, ard\u0131ndan int()<\/code> ile tam say\u0131ya \u00e7evirmelisiniz. Bu i\u015flem, say\u0131n\u0131n ondal\u0131k k\u0131sm\u0131n\u0131 atar (yuvarlama yapmaz, sadece keser).<\/p>\nondalikli_sayi_string = \"3.78\"\nfloat_sayi = float(ondalikli_sayi_string)\nint_sayi = int(float_sayi)\nprint(int_sayi) # \u00c7\u0131kt\u0131: 3\n\nnegatif_ondalikli_string = \"-2.9\"\nnegatif_float = float(negatif_ondalikli_string)\nnegatif_int = int(negatif_float)\nprint(negatif_int) # \u00c7\u0131kt\u0131: -2<\/code><\/pre>\nPratik Kullan\u0131m Alanlar\u0131<\/h4>\n
* Kullan\u0131c\u0131 Giri\u015fleri:<\/strong> input()<\/code> fonksiyonu her zaman string d\u00f6nd\u00fcrd\u00fc\u011f\u00fc i\u00e7in, kullan\u0131c\u0131dan ya\u015f, miktar gibi say\u0131sal veriler al\u0131nd\u0131\u011f\u0131nda int()<\/code> ile d\u00f6n\u00fc\u015ft\u00fcrmek gerekir.
\n* Dosya Okuma\/API Verileri:<\/strong> Bir dosyadan okunan veya bir web API’sinden gelen veriler string format\u0131nda olabilir ve matematiksel i\u015flemler i\u00e7in integer’a d\u00f6n\u00fc\u015ft\u00fcr\u00fclmesi gerekebilir.
\n* Veritaban\u0131 \u0130\u015flemleri:<\/strong> Veritaban\u0131ndan \u00e7ekilen say\u0131sal de\u011ferler bazen string olarak gelebilir.
\n* Konfig\u00fcrasyon Dosyalar\u0131:<\/strong> .ini<\/code>, .env<\/code> gibi dosyalardan okunan say\u0131sal ayarlar string olarak alg\u0131lan\u0131r ve int()<\/code> ile d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr.<\/p>\nInteger’dan String’e D\u00f6n\u00fc\u015f\u00fcm: str()<\/code> Fonksiyonu<\/h3>\nPython’da bir integer’\u0131 string’e d\u00f6n\u00fc\u015ft\u00fcrmenin ana yolu str()<\/code> yerle\u015fik fonksiyonunu kullanmakt\u0131r. Bu i\u015flem genellikle string’den integer’a d\u00f6n\u00fc\u015f\u00fcme g\u00f6re daha basittir ve hata riski ta\u015f\u0131maz.<\/p>\nTemel Kullan\u0131m<\/h4>\n
str()<\/code> fonksiyonu, herhangi bir Python nesnesini (bu durumda bir integer’\u0131) alarak onun string temsilini d\u00f6nd\u00fcr\u00fcr.<\/p>\nsayi_int = 456\nsayi_string = str(sayi_int)\nprint(sayi_string)\nprint(type(sayi_string))\n\n\u00c7\u0131kt\u0131:<\/h2>\n456<\/h2>\n<\/code><\/pre>\n<\/h2>\nNegatif say\u0131lar da dahil olmak \u00fczere t\u00fcm tam say\u0131lar kolayca string’e d\u00f6n\u00fc\u015ft\u00fcr\u00fclebilir:<\/p>\n
negatif_sayi_int = -789\nnegatif_sayi_string = str(negatif_sayi_int)\nprint(negatif_sayi_string)\nprint(type(negatif_sayi_string))\n\n\u00c7\u0131kt\u0131:<\/h2>\n-789<\/h2>\n<\/code><\/pre>\n<\/h2>\nAlternatif D\u00f6n\u00fc\u015f\u00fcm ve Bi\u00e7imlendirme Y\u00f6ntemleri<\/h4>\n
str()<\/code> fonksiyonu do\u011frudan d\u00f6n\u00fc\u015f\u00fcm i\u00e7in yeterli olsa da, integer’lar\u0131 string’e d\u00f6n\u00fc\u015ft\u00fcr\u00fcrken veya di\u011fer stringlerle birle\u015ftirirken daha geli\u015fmi\u015f bi\u00e7imlendirme se\u00e7enekleri sunan ba\u015fka y\u00f6ntemler de vard\u0131r.<\/p>\nF-Stringler (Bi\u00e7imlendirilmi\u015f Dize Literalleri) – Python 3.6+<\/h5>\n
F-string’ler, Python’da string bi\u00e7imlendirme i\u00e7in en modern ve \u00f6nerilen y\u00f6ntemdir. String i\u00e7ine do\u011frudan Python ifadelerini (de\u011fi\u015fkenler, fonksiyon \u00e7a\u011fr\u0131lar\u0131 vb.) g\u00f6mmeyi sa\u011flarlar.<\/p>\n
urun_id = 12345\nurun_adi = \"Laptop\"\nfiyat = 1250\n\nmesaj_fstring = f\"\u00dcr\u00fcn ID: {urun_id}, Ad\u0131: {urun_adi}, Fiyat: {fiyat} TL.\"\nprint(mesaj_fstring)\n\n\u00c7\u0131kt\u0131:<\/h2>\n\u00dcr\u00fcn ID: 12345, Ad\u0131: Laptop, Fiyat: 1250 TL.<\/code><\/pre>\n<\/h2>\n.format()<\/code> Metodu<\/h5>\nstr.format()<\/code> metodu, f-string’lerden \u00f6nce yayg\u0131n olarak kullan\u0131lan g\u00fc\u00e7l\u00fc bir string bi\u00e7imlendirme y\u00f6ntemidir. Yer tutucular ({}<\/code>) kullanarak de\u011ferleri string’e yerle\u015ftirmenizi sa\u011flar.<\/p>\nkullanici_id = 101\nkullanici_adi = \"Ali\"\n\nmesaj_format = \"Kullan\u0131c\u0131 ID: {}, Ad\u0131: {}\".format(kullanici_id, kullanici_adi)\nprint(mesaj_format)\n\n\u00c7\u0131kt\u0131:<\/h2>\nKullan\u0131c\u0131 ID: 101, Ad\u0131: Ali<\/code><\/pre>\n<\/h2>\n%<\/code> Operat\u00f6r\u00fc (Eski Stil Bi\u00e7imlendirme)<\/h5>\nBu y\u00f6ntem, C dilindeki printf<\/code> fonksiyonuna benzer ve Python’\u0131n eski s\u00fcr\u00fcmlerinde yayg\u0131n olarak kullan\u0131l\u0131rd\u0131. Yeni projelerde genellikle tercih edilmez ancak eski kodlarda hala g\u00f6r\u00fclebilir. %d<\/code> tam say\u0131lar i\u00e7in, %s<\/code> string’ler i\u00e7indir.<\/p>\nsayac = 5\ntoplam = 250\n\nmesaj_yuzde = \"Saya\u00e7: %d, Toplam: %d\" % (sayac, toplam)\nprint(mesaj_yuzde)\n\n\u00c7\u0131kt\u0131:<\/h2>\nSaya\u00e7: 5, Toplam: 250<\/code><\/pre>\n<\/h2>\nPratik Kullan\u0131m Alanlar\u0131<\/h4>\n
* Kullan\u0131c\u0131ya \u00c7\u0131kt\u0131 G\u00f6sterme:<\/strong> Herhangi bir say\u0131sal bilgiyi (\u00f6rne\u011fin, hesaplama sonu\u00e7lar\u0131, sayac\u0131n de\u011feri) kullan\u0131c\u0131ya okunabilir bir formatta g\u00f6stermek i\u00e7in string’e d\u00f6n\u00fc\u015ft\u00fcrmek gerekir.
\n* Loglama:<\/strong> Program\u0131n \u00e7al\u0131\u015fma zaman\u0131ndaki say\u0131sal de\u011ferleri (hata kodlar\u0131, i\u015flem s\u00fcreleri) log dosyalar\u0131na yazarken string format\u0131na ihtiya\u00e7 duyulur.
\n* Dosya Yazma:<\/strong> Say\u0131sal verileri metin dosyalar\u0131na yazmadan \u00f6nce string’e d\u00f6n\u00fc\u015ft\u00fcrmek gerekir.
\n* Web Aray\u00fczleri:<\/strong> HTML veya JSON gibi metin tabanl\u0131 formatlarda say\u0131sal verileri temsil etmek i\u00e7in string d\u00f6n\u00fc\u015f\u00fcm\u00fc esast\u0131r.
\n* String Birle\u015ftirme:<\/strong> Say\u0131lar\u0131 do\u011frudan di\u011fer string’lerle birle\u015ftiremezsiniz (\"Ya\u015f\u0131m: \" + 30<\/code> hata verir). \u00d6nce say\u0131y\u0131 string’e d\u00f6n\u00fc\u015ft\u00fcrmek gerekir (\"Ya\u015f\u0131m: \" + str(30)<\/code>).<\/p>\nYayg\u0131n Hatalar ve En \u0130yi Uygulamalar<\/h3>\n
D\u00f6n\u00fc\u015f\u00fcm i\u015flemleri basit gibi g\u00f6r\u00fcnse de, baz\u0131 yayg\u0131n hatalar ve en iyi uygulamalar program\u0131n\u0131z\u0131n sa\u011flaml\u0131\u011f\u0131n\u0131 art\u0131rabilir.<\/p>\n
ValueError<\/code> ile Ba\u015fa \u00c7\u0131kmak<\/h4>\nint()<\/code> fonksiyonunu kullan\u0131rken ValueError<\/code> en s\u0131k kar\u015f\u0131la\u015f\u0131lan hatad\u0131r. Kullan\u0131c\u0131dan gelen veya d\u0131\u015f kaynaklardan al\u0131nan verilerin her zaman bekledi\u011finiz formatta olaca\u011f\u0131n\u0131 varsaymay\u0131n. Her zaman try-except<\/code> bloklar\u0131 kullanarak bu hatay\u0131 yakalay\u0131n ve kullan\u0131c\u0131ya veya loglara anlaml\u0131 mesajlar verin.<\/p>\nwhile True:\n yas_girisi = input(\"L\u00fctfen ya\u015f\u0131n\u0131z\u0131 girin: \")\n try:\n yas = int(yas_girisi)\n if yas > 0:\n print(f\"Ya\u015f\u0131n\u0131z: {yas}\")\n break\n else:\n print(\"Ya\u015f pozitif bir say\u0131 olmal\u0131d\u0131r.\")\n except ValueError:\n print(\"Ge\u00e7ersiz giri\u015f. L\u00fctfen sadece tam say\u0131 girin.\")<\/code><\/pre>\nVeri Do\u011frulama (Validation)<\/h4>\n
D\u00f6n\u00fc\u015f\u00fcm yapmadan \u00f6nce string’in ge\u00e7erli bir say\u0131 olup olmad\u0131\u011f\u0131n\u0131 kontrol etmek, try-except<\/code> blo\u011funu gereksiz yere \u00e7al\u0131\u015ft\u0131rmaktan ka\u00e7\u0131nman\u0131za yard\u0131mc\u0131 olabilir. String’in sadece rakamlardan olu\u015fup olu\u015fmad\u0131\u011f\u0131n\u0131 kontrol etmek i\u00e7in isdigit()<\/code> metodunu kullanabilirsiniz. Ancak, isdigit()<\/code> negatif say\u0131lar (“-123”) veya ondal\u0131kl\u0131 say\u0131lar (“3.14”) i\u00e7in False<\/code> d\u00f6nd\u00fcr\u00fcr, bu y\u00fczden dikkatli kullan\u0131lmal\u0131d\u0131r.<\/p>\ns1 = \"123\"\ns2 = \"-45\"\ns3 = \"3.14\"\ns4 = \"abc\"\n\nprint(s1.isdigit()) # True\nprint(s2.isdigit()) # False (\u00e7\u00fcnk\u00fc '-')\nprint(s3.isdigit()) # False (\u00e7\u00fcnk\u00fc '.')\nprint(s4.isdigit()) # False\n\nDaha kapsaml\u0131 do\u011frulama i\u00e7in<\/h2>\nimport re\n\ndef is_integer_string(s):\n # Negatif ve pozitif tam say\u0131lar\u0131 kapsar\n return re.fullmatch(r\"[-+]?\\d+\", s.strip()) is not None\n\nprint(is_integer_string(\"123\")) # True\nprint(is_integer_string(\"-45\")) # True\nprint(is_integer_string(\"+789\")) # True\nprint(is_integer_string(\"3.14\")) # False\nprint(is_integer_string(\" 100 \"))# True (bo\u015fluklar\u0131 strip ile temizler)<\/code><\/pre>\nPerformans Notlar\u0131<\/h4>\n
\u00c7o\u011fu uygulama i\u00e7in int()<\/code> ve str()<\/code> fonksiyonlar\u0131n\u0131n performans\u0131 bir sorun te\u015fkil etmez. Python’\u0131n yerle\u015fik fonksiyonlar\u0131 C ile yaz\u0131ld\u0131\u011f\u0131 i\u00e7in olduk\u00e7a optimize edilmi\u015flerdir. Milyonlarca d\u00f6n\u00fc\u015f\u00fcm yapman\u0131z gereken \u00e7ok \u00f6zel durumlarda bile, genellikle bu d\u00f6n\u00fc\u015f\u00fcmler darbo\u011faz (bottleneck) olmayacakt\u0131r. Kodun okunabilirli\u011fi ve do\u011frulu\u011fu, performanstan \u00e7ok daha \u00f6nemlidir.<\/p>\nSonu\u00e7 ve S\u0131k\u00e7a Sorulan Sorular (SSS)<\/h3>\n
Bu rehberde, Python’da string’den integer’a ve integer’dan string’e d\u00f6n\u00fc\u015f\u00fcm\u00fcn temel mekanizmalar\u0131n\u0131, hata y\u00f6netimini, farkl\u0131 say\u0131 tabanlar\u0131 ile \u00e7al\u0131\u015fmay\u0131 ve pratik kullan\u0131m alanlar\u0131n\u0131 detayl\u0131ca inceledik. int()<\/code> ve str()<\/code> fonksiyonlar\u0131 bu d\u00f6n\u00fc\u015f\u00fcmlerin \u00e7ekirde\u011fini olu\u015ftururken, f-string’ler ve .format()<\/code> gibi y\u00f6ntemler string bi\u00e7imlendirme konusunda ek esneklik sunar. G\u00fcvenli kod yazmak i\u00e7in ValueError<\/code> hatalar\u0131n\u0131 try-except<\/code> bloklar\u0131 ile y\u00f6netmek ve giri\u015fleri do\u011frulamak kritik \u00f6neme sahiptir.<\/p>\nS\u0131k\u00e7a Sorulan Sorular (SSS)<\/h4>\n\n- Neden
int()<\/code> bir ValueError<\/code> verir?<\/dt>\nint()<\/code> fonksiyonu, kendisine verilen string’i ge\u00e7erli bir tam say\u0131 olarak yorumlayamad\u0131\u011f\u0131nda ValueError<\/code> hatas\u0131 f\u0131rlat\u0131r. Bu durum, string’in say\u0131sal olmayan karakterler i\u00e7ermesi (\u00f6rne\u011fin “abc”), ondal\u0131k nokta i\u00e7ermesi (“3.14”) veya belirtilen say\u0131 taban\u0131na uymamas\u0131 durumunda meydana gelir.<\/dd>\nint()<\/code> float string’leri do\u011frudan d\u00f6n\u00fc\u015ft\u00fcrebilir mi?<\/dt>\n- Hay\u0131r,
int(\"3.14\")<\/code> do\u011frudan ValueError<\/code> verir. Float string’lerini tam say\u0131ya d\u00f6n\u00fc\u015ft\u00fcrmek i\u00e7in \u00f6nce float()<\/code> ile ondal\u0131kl\u0131 say\u0131ya, ard\u0131ndan int()<\/code> ile tam say\u0131ya \u00e7evirmelisiniz: int(float(\"3.14\"))<\/code>. Bu i\u015flem ondal\u0131k k\u0131sm\u0131 keser (yuvarlamaz).<\/dd>\nstr()<\/code> bir ValueError<\/code> verebilir mi?<\/dt>\n- Hay\u0131r,
str()<\/code> fonksiyonu bir ValueError<\/code> f\u0131rlatmaz. Python’daki hemen hemen her nesnenin bir string temsilini d\u00f6nd\u00fcrebilir, bu nedenle d\u00f6n\u00fc\u015f\u00fcm her zaman ba\u015far\u0131l\u0131 olur.<\/dd>\n- F-string’ler ve
str()<\/code> aras\u0131nda ne fark var?<\/dt>\nstr()<\/code> fonksiyonu tek bir nesnenin string temsilini d\u00f6nd\u00fcrmek i\u00e7in kullan\u0131l\u0131r (str(123)<\/code> -> \"123\"<\/code>). F-string’ler ise daha \u00e7ok birden fazla de\u011fi\u015fkeni veya ifadeyi i\u00e7eren karma\u015f\u0131k string’ler olu\u015fturmak ve bi\u00e7imlendirmek i\u00e7in kullan\u0131l\u0131r (f\"Ya\u015f\u0131m: {yas}\"<\/code>). F-string’ler, i\u00e7erisine g\u00f6m\u00fclen de\u011fi\u015fkenleri otomatik olarak str()<\/code> fonksiyonu ile string’e d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.<\/dd>\nisdigit()<\/code> neden t\u00fcm say\u0131sal string’leri kontrol etmek i\u00e7in yeterli de\u011fil?<\/dt>\nisdigit()<\/code> metodu sadece string’in t\u00fcm karakterlerinin onluk tabandaki rakamlar (‘0’-‘9’) olup olmad\u0131\u011f\u0131n\u0131 kontrol eder. Negatif say\u0131lardaki eksi i\u015fareti (-<\/code>), ondal\u0131k say\u0131lardaki nokta (.<\/code>) veya farkl\u0131 say\u0131 tabanlar\u0131ndaki harfler (\u00f6rne\u011fin onalt\u0131l\u0131k ‘A’-‘F’) y\u00fcz\u00fcnden False<\/code> d\u00f6nd\u00fcr\u00fcr. Daha kapsaml\u0131 say\u0131sal string do\u011frulamas\u0131 i\u00e7in genellikle d\u00fczenli ifadeler (regular expressions) \u00f6nerilir.<\/dd>\n<\/dl>\n<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"Python’da String’den Integer’a ve Integer’dan String’e D\u00f6n\u00fc\u015f\u00fcm: Kapsaml\u0131 Bir Rehber\nPython, dinamik ve esnek bir programlama dilidir. Bu esnek","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-34300","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-python","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\n
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