{"id":1952,"date":"2021-07-02T13:04:15","date_gmt":"2021-07-02T13:04:15","guid":{"rendered":"https:\/\/furkanege.com.tr\/blog\/?p=1952"},"modified":"2021-07-02T13:04:49","modified_gmt":"2021-07-02T13:04:49","slug":"python-dersleri-python-anahtar-kelimeler","status":"publish","type":"post","link":"https:\/\/furkanege.com.tr\/blog\/python-dersleri-python-anahtar-kelimeler\/","title":{"rendered":"Python Dersleri: 3- Python Anahtar Kelimeler ve Tan\u0131mlay\u0131c\u0131lar"},"content":{"rendered":"\n\n
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\n 5\/5 - (1 vote) <\/div>\n <\/div>\n\n

Python dersleri<\/a> serimizin bu dersinde python anahtar s\u00f6zc\u00fckler ve python tan\u0131mlay\u0131c\u0131lar hakk\u0131nda bilgi edineceksiniz.<\/h2>\n\n\n\n

Python Anahtar Kelimeleri<\/h3>\n\n\n\n

Python i\u00e7in \u00f6nceden tan\u0131mlanan anahtar kelimeler vard\u0131r. Anahtar kelimeyi de\u011fi\u015fken ad\u0131, fonksiyon ad\u0131 veya ba\u015fka bir tan\u0131mlay\u0131c\u0131 olarak kullanamay\u0131z. Python dilinin s\u00f6zdizimini ve yap\u0131s\u0131n\u0131 tan\u0131mlamak i\u00e7in kullan\u0131l\u0131rlar.<\/p>\n\n\n\n

Python’da anahtar kelimeler b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harf duyarl\u0131d\u0131r.<\/p>\n\n\n\n

True<\/span><\/kbd>, False<\/kbd><\/span> ve None<\/span><\/kbd> d\u0131\u015f\u0131ndaki t\u00fcm anahtar kelimeler k\u00fc\u00e7\u00fck harflidir ve olduklar\u0131 gibi yaz\u0131lmal\u0131d\u0131r. Python 3.9’da bulunan t\u00fcm anahtar kelimelerin listesi a\u015fa\u011f\u0131da verilmi\u015ftir.<\/p>\n\n\n\n

False<\/td>None<\/td>True<\/td>peg_parser<\/td>and<\/td>as<\/td><\/tr>
assert<\/td>async<\/td>await<\/td>break<\/td>class<\/td>continue<\/td><\/tr>
def<\/td>del<\/td>elif<\/td>else<\/td>except<\/td>finally<\/td><\/tr>
for<\/td>from<\/td>global<\/td>if<\/td>import<\/td>in<\/td><\/tr>
is<\/td>lambda<\/td>nonlocal<\/td>not<\/td>or<\/td>pass<\/td><\/tr>
raise<\/td>return<\/td>try<\/td>while<\/td>with<\/td>yield<\/td><\/tr><\/tbody><\/table>
Python Anahtar Kelimeler<\/figcaption><\/figure>\n\n\n\n

Python 3.9 s\u00fcr\u00fcm\u00fc<\/a> ile toplam 36 adet anahtar kelimemiz bulunmaktad\u0131r ve bu say\u0131 s\u00fcr\u00fcmden s\u00fcr\u00fcme farkl\u0131l\u0131k g\u00f6sterebilir.<\/p>\n\n\n\n

Python anahtar kelimeleri \u00f6\u011frenmek i\u00e7in komut sat\u0131r\u0131na import keyword<\/strong>, ard\u0131ndan print(keyword.kwlist)<\/strong> yazmal\u0131y\u0131z.<\/p>\n\n\n\n

\"\"
Python Dersleri: 3- Python Anahtar Kelimeler<\/figcaption><\/figure>\n\n\n\n

Python Tan\u0131mlay\u0131c\u0131lar\u0131<\/h3>\n\n\n\n

Python tan\u0131mlay\u0131c\u0131 nedir?<\/strong> Python tan\u0131mlay\u0131c\u0131, s\u0131n\u0131f, fonksiyonlar, de\u011fi\u015fkenler vb. varl\u0131klara verilen add\u0131r. Bir varl\u0131\u011f\u0131 di\u011ferinden ay\u0131rmaya yard\u0131mc\u0131 olur.<\/p>\n\n\n\n

Tan\u0131mlay\u0131c\u0131 yazma kurallar\u0131<\/h4>\n\n\n\n
  1. Tan\u0131mlay\u0131c\u0131lar, k\u00fc\u00e7\u00fck harf (a’dan z’ye), b\u00fcy\u00fck harf (A’dan Z’ye), rakam (0 ila 9) ve alt \u00e7izgi “_” harflerinden olu\u015fan bir kombinasyon olabilir. ilkSinif, var_1 ve ekrana_yazdir gibi adlar\u0131n t\u00fcm\u00fc ge\u00e7erli \u00f6rneklerdir.<\/li>
  2. Bir tan\u0131mlay\u0131c\u0131 bir rakamla ba\u015flayamaz. “1degisken” ge\u00e7ersiz, ancak “degisken1” ge\u00e7erlidir.<\/li>
  3. Anahtar kelimeler tan\u0131mlay\u0131c\u0131 olarak kullan\u0131lamaz.\"python-dersleri-anahtar-kelimeler-1\"<\/li>
  4. T\u00fcrk\u00e7e karakter kullan\u0131lamaz. (\u00d6, \u00f6, \u00dc, \u00fc, \u0130, \u0131, \u00c7, \u00e7, \u015e, \u015f)<\/li>
  5. Tan\u0131mlay\u0131c\u0131m\u0131zda !, @, #, $, % gibi \u00f6zel semboller kullanamay\u0131z.\"python-dersleri-anahtar-kelimeler-2\"<\/li><\/ol>\n\n\n\n
    <\/div>\n\n\n\n
    \n

    Akl\u0131n\u0131zda bulunsun<\/h2>\n\n\n\n
    • Python b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harfe duyarl\u0131 bir dildir. Bu, De\u011fi\u015fken<\/kbd> ve de\u011fi\u015fken<\/kbd>‘in ayn\u0131 olmad\u0131\u011f\u0131 anlam\u0131na gelir.<\/li>
    • Tan\u0131mlay\u0131c\u0131lara her zaman anlaml\u0131 bir ad verin. s = 10<\/kbd> ge\u00e7erli bir isim olsa da, sayi = 10<\/kbd> yazmak daha mant\u0131kl\u0131 olacakt\u0131r ve uzun bir aradan sonra kodunuza bakt\u0131\u011f\u0131n\u0131zda neyi temsil etti\u011fini anlamak daha kolay olacakt\u0131r.<\/li><\/ul>\n<\/div><\/div>\n\n\n\n

      Tan\u0131mlay\u0131c\u0131 ile De\u011fi\u015fkenin fark\u0131 nedir?<\/h3>\n\n\n\n

      Tan\u0131mlay\u0131c\u0131<\/strong>, s\u0131n\u0131f, fonksiyonlar, de\u011fi\u015fkenler vb. varl\u0131klara verilen add\u0131r.\u00a0De\u011fi\u015fken<\/strong>, bir de\u011feri tutabilen bir haf\u0131za konumuna verilen isimdir. Tan\u0131mlay\u0131c\u0131lar\u0131n aral\u0131\u011f\u0131 de\u011fi\u015fkenlerden daha y\u00fcksektir.\u00a0De\u011fi\u015fken<\/strong>\u00a0isimleri tan\u0131mlay\u0131c\u0131lard\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"

      Python dersleri serimizin bu dersinde python anahtar s\u00f6zc\u00fckler ve python tan\u0131mlay\u0131c\u0131lar hakk\u0131nda bilgi edineceksiniz. Python Anahtar Kelimeleri Python i\u00e7in \u00f6nceden tan\u0131mlanan anahtar kelimeler vard\u0131r. Anahtar kelimeyi de\u011fi\u015fken ad\u0131, fonksiyon ad\u0131 veya ba\u015fka bir tan\u0131mlay\u0131c\u0131 olarak kullanamay\u0131z. Python dilinin s\u00f6zdizimini ve yap\u0131s\u0131n\u0131 tan\u0131mlamak i\u00e7in kullan\u0131l\u0131rlar. Python’da anahtar kelimeler b\u00fcy\u00fck\/k\u00fc\u00e7\u00fck harf duyarl\u0131d\u0131r. True, False ve None d\u0131\u015f\u0131ndaki […]<\/p>\n","protected":false},"author":1,"featured_media":1954,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[696,695],"tags":[715,713,716],"class_list":["post-1952","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","category-programlama","tag-python-anahtar-kelimeler","tag-python-dersleri","tag-python-tanimlayicilar"],"_links":{"self":[{"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/posts\/1952","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=1952"}],"version-history":[{"count":3,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/posts\/1952\/revisions"}],"predecessor-version":[{"id":1959,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/posts\/1952\/revisions\/1959"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/media\/1954"}],"wp:attachment":[{"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=1952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=1952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/furkanege.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=1952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}