Masashi Shibata / 2016.04.30 / #kosenconf C-BATA PRESENTS Python੡8FCϑϨʔϜϫʔΫͷݪཧͱ࣮૷ 

Masashi Shibata @c_bata_ WEB ENGINEER ໌ੴߴઐ / Pythonista 

Handling Request from Clients kobin WEB SERVER WEB APPLICATION REQUEST RESPONSE 

Handling Request from Clients kobin WEB SERVER WEB APPLICATION REQUEST RESPONSE 

WSGI ʲ Web Server Gateway Interfaceʳ <֓ཁ> PythonͰ࡞ΔWebΞϓϦέʔγϣϯͷ
 ࣮૷ํ๏ͷඪ४Խ࢓༷ PEP3333 

࢓༷ ᶃ ͭͷҾ਺Λ࣋ͬͨݺͼग़͠ՄೳͳΦϒδΣΫτ ᶄ ୈҾ਺ͱͯ͠౉͞ΕͨΦϒδΣΫτΛݺͼग़͠
 )551εςʔλείʔυͱϔομ৘ใΛ౉͢ ᶅ ϨεϙϯεϘσΟͱͯ͠όΠτจࣈྻΛ
ZJFME͢Δ
 JUFSBCMFΛฦ͢ IUUQTXXXQZUIPOPSHEFWQFQTQFQ 

def app(env, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return [b"Hello World"] Hello World
 with just 3 lines of Python 

def app(env, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return [b"Hello World"] ͭͷҾ਺Λ࣋ͬͨ
 ݺͼग़͠ՄೳͳΦϒδΣΫτ 

def app(env, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return [b"Hello World"] εςʔλε ϔομ৘ใ ୈҾ਺ 

def app(env, start_response): start_response('200 OK', [('Content-Type', 'text/plain')]) return [b"Hello World"] ϨεϙϯεϘσΟ
όΠτྻ 

$ gunicorn -w 1 filename:app [2016-04-15 10:17:00 +0900] [1873] [INFO] Starting gunicorn 19.4.5 [2016-04-15 10:17:00 +0900] [1873] [INFO] Listening at: http://127.0.0.1:8000 (1873) [2016-04-15 10:17:00 +0900] [1873] [INFO] Using worker: sync [2016-04-15 10:17:00 +0900] [1878] [INFO] Booting worker with pid: 1878 WSGI SERVER Enable the use of any framework with any server. 

ͲΜͳػೳ͕ඞཁʁ 

Function 1 ROUTING ϧʔςΟϯά ࠓ͸Ͳ͜ʹΞΫηεͯ͠΋
l)FMMP
8PSMEz 

Function 2 HTML TEMPLATE HTMLςϯϓϨʔτ ࠓ͸ϓϨʔϯςΩετฦͯ͠Δ͚ͩ 

Function 3 STATIC FILES ੩తϑΝΠϧ ຊ൪Ͱ͸/HJOYͱ͔࢖ͬͯฦ͚͢Ͳɺ։ൃத͸ʜ
$44
+4
ը૾Λ͍͍ײ͡ʹฦͯ͠ཉ͍͠ 

Function 4 REQUEST OBJECT ϦΫΤετΦϒδΣΫτ ࠓ͸ͨͩͷࣙॻܕΦϒδΣΫτ͕౉͞ΕͯΔ͚ͩ
͍͍ײ͡ʹϥοϓͯ͘͠ΕΔΦϒδΣΫτ͕΄͍͠ 

Function 5 RESPONSE OBJECT ϨεϙϯεΦϒδΣΫτ εςʔλεͱ͔ϔομ৘ใͱ͔Λ͍͍ײ͡ʹίϯτϩʔϧ 

a small and statically-typed web framework kobin https://github.com/c-bata/kobin 

from kobin import Kobin app = Kobin() @app.route(‘^/$') def hello(): return "Hello World!!" if __name__ == '__main__': app.run() 

IUUQHJUIVCDPNDCBUBLPCJOFYBNQMF DEMO TODOΞϓϦ [ Kobin + Angular2 ] 

Kobin is readable (maybe). 84(*ͱ͔1ZUIPOͷจ๏౳ͷཧղ͸ඞཁ
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)JOUJOH
3PVUJOH
ͷลΓ͔ΒಡΉͷ͕͍͍͔΋ ! ! ! ! 

3FGFSFODFT • Documentations • https://kobin.readthedocs.org/ja/latest/ • https://kobin.readthedocs.org/en/latest/ • Kobin Example • https://github.com/c-bata/kobin-example • https://kobin.herokuapp.com/ 

͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ THANK YOU