Pie Meets Py / PyCon JP 2019

Transcript

1. Pie Meets Py - PythonͰAndroidΞϓϦΛͭ͘Ζ͏ 2019-09-16 (PyCon JP 2019) ௕୩৔ ५໵
2. ࣗݾ঺հ • ௕୩৔ ५໵ (͸ͤ͹ ͡ΎΜ΍) • ֤छSNSͰ͸ 7pairs Ͱ׆ಈத • ޷͖ͳେࡕۅӂ͸தଜ߶໵ " / ޷͖ͳ෋࢜େֶ͸֎࡚मଡ # • ͓࢓ࣄͰ͸Android (Java / Kotlin) / iOS (Objective-C / Swift) ͕த৺ • ͋·ΓҰൠతͱ͸ݴ͑ͳ͍Pythonͷ࢖͍ํΛ໛ࡧ͢Δͷ͕େ޷͖ • PyCon JP 2018Ͱ͸Transcryptʹ͍ͭͯൃද • https://speakerdeck.com/7pairs
3. ஶॻ Chalice, Transcrypt, pytest, SeleneΛར༻ͯ͠
 αʔόʔϨεΞϓϦΛ࣮૷ɾςετ͢ΔຊͰ͢ AmazonଞͰઈࢍൢചதʂ
4. ͜ͷηογϣϯͰ࿩͢͜ͱ • PythonʹΑΔAndroidΞϓϦͷ։ൃ؀ڥ • ֤։ൃ؀ڥͷ௕ॴɾ୹ॴ • ։ൃ؀ڥͷબͼํ
5. ͜ͷηογϣϯͰ࿩͞ͳ͍͜ͱ • ֤։ൃ؀ڥͰͷৄࡉͳ࣮૷ํ๏ • ֤։ൃ؀ڥͰͷςετํ๏
6. ͜ͷηογϣϯͷΰʔϧ • AndroidΞϓϦ։ൃʹڵຯΛ͍࣋ͬͯͨͩ͘ • Pythonͷଟ༷ͳՄೳੑΛ஌͍ͬͯͨͩ͘ • ύʔςΟͰࢲ͕΅ͬͪʹͳΒͳ͍
7. ͳͥ “Pie Meets Py” ʁ
8. PieͱPyͷൃԻ (ถࠃӳޠ) • Pieʲpάɪʳ • Pythonʲpάɪθɑnʳ
9. Pieͱ͸ʁ • Android 9.0ͷίʔυωʔϜ • Android 1.5 (3൪໨ͷόʔδϣϯ) Ҏ߱ 
 ֤όʔδϣϯʹ͸ΞϧϑΝϕοτॱʹ 
 ͓՛ࢠͷίʔυωʔϜ͕͚ͭΒΕ͍ͯΔ
10. Android 1.5 Cupcake
11. Android 1.6 Donut
12. Android 2.0 Eclair
13. Android 2.2 Froyo
14. Android 2.3 Gingerbread
15. Android 3.0 - 3.2 Honeycomb
16. Android 4.0 Ice Cream Sandwich
17. Android 4.1 - 4.3 Jelly Bean
18. Android 4.4 Kitkat
19. Android 5.0 - 5.1 Lollipop
20. Android 6.0 Marshmallow
21. Android 7.0 - 7.1 Nougat
22. Android 8.0 - 8.1 Oreo
23. Android 9.0 Pie
24. Android 10 • 2019೥9݄3೔ϦϦʔε • PixelγϦʔζ͔Βॱ࣍഑৴ • ͓՛ࢠͷίʔυωʔϜ͕ഇࢭ $ • ੈքதͷ͢΂ͯͷϢʔβʔ͕ 
 ಉ͡Α͏ʹೝࣝͰ͖Δ໊લͰ͸ͳ͍ͨΊ
25. ͳͥPythonͰAndroid։ൃʁ
26. 2018೥य़ͷϫΠক
27. ڝ߹ͦ͠͏ͳྖҬ • WebΞϓϦͷόοΫΤϯυ • ΫϩʔϦϯάʗεΫϨΠϐϯά • σʔλ෼ੳɾՄࢹԽ • ࣗવݴޠॲཧ
28. ͤ΍ʂAltJSͰCfPग़ͨ͠Ζʂ
29. PyCon JPʹAltJSͷηογϣϯ͕ര஀
30. 2019೥य़ͷϫΠক
31. ڝ߹ͦ͠͏ͳྖҬ • WebΞϓϦͷόοΫΤϯυ • (ࣗಈ) ςετ • σʔλ෼ੳɾՄࢹԽ • ࣗવݴޠॲཧ
32. ͤ΍ʂAndroidͰCfPग़ͨ͠Ζʂ
33. PyCon JPʹAndroidͷηογϣϯ͕ര஀
34. PyCon mini HiroshimaͰ΋ൃද͠·͢
35. Why did you want to develop
 Android apps in Python ?
36. Because it's there.
37. ։ൃ؀ڥ
38. બఆͷ৚݅ • ࣮૷ݴޠ͕PythonͰ͋Δ • ࣮༻ʹ଱͑Δ଎౓Ͱಈ࡞͢Δ • Google Play StoreʹϦϦʔεͰ͖Δ
39. ͝঺հ͢Δ։ൃ؀ڥ • React Native + Transcrypt • Kivy • Chaquopy
40. React Native + Transcrypt
41. React Native • Facebook͕։ൃ͍ͯ͠ΔΦʔϓϯιʔεͷ 
 ϞόΠϧΞϓϦέʔγϣϯϑϨʔϜϫʔΫ • جຊతʹReactͱಉ༷ͷݪཧͰಈ࡞͢Δ͕ 
 ඳը͸֤OSͷωΠςΟϒAPIΛར༻͢Δ • ࣮૷ʹ͸JavaScriptΛར༻͢Δ • Android / iOS / UWPʹରԠ
42. Transcrypt • PythonΛJavaScriptʹม׵͢ΔAltJS • ެࣜαΠτᐌ͘ “subset of Python” Ͱ͋Γ 
 ͢΂ͯͷػೳΛαϙʔτ͍ͯ͠ΔΘ͚Ͱ͸ͳ͍ • Ұ෦ͷඪ४ϥΠϒϥϦ͕ར༻Ͱ͖ͳ͍ͳͲ • JavaScriptͷॲཧΛγʔϜϨεʹݺͼग़ͤΔ • JavaScriptͷ֎෦ύοέʔδ΋ར༻Մೳ
43. AltJSͱͯ͠ͷPython • PyCon JP 2018ʹͯ 
 Transcryptʹ͍ͭͯൃද͠·ͨ͠ • https://www.youtube.com/watch?v=zGqUysiC1xA&t • https://speakerdeck.com/7pairs/pycon-jp-2018
44. React Native + Transcrypt • React Native͸ϓϩάϥϜΛ 
 JavaScriptͰ࣮૷͢Δ • Transcrypt͸PythonΛJavaScriptʹม׵͢Δ • ૊Έ߹ΘͤΕ͹PythonͰReact Nativeͷ 
 ϓϩάϥϜ͕ॻ͚ΔͷͰ͸ʁ
45. ݕূ݁Ռ • ΤϯτϦϙΠϯτ (App.js) Λআ͍ͯ 
 ͢΂ͯPythonͰ࣮૷͕Ͱ͖·ͨ͠ʂ %
46. Positive ! • ιʔεͷߋ৽Λ؂ࢹͯ͠τϥϯεύΠϧ͢Ε͹ 
 Fast RefreshͷԸܙʹ͔͋ͣΕΔ • ܕώϯτΛ͚ͭΔ͜ͱͰ
 τϥϯεύΠϧ࣌ʹܕνΣοΫ͕Մೳ
47. TypeScriptͰे෼ͳͷͰ͸ &
48. TranscryptͷܕνΣοΫ def concat(a: str, b: str) -> str: return f"{a}-{b}" # 33-4 concat("33", "4") # error: Argument 2 to "concat" has # incompatible type "int"; expected "str" concat("33", 4)
49. Negative $ • Pythonͷlambdaࣜͷ੍ݶʹਏΈ͕͋Δ • ͋Δఔ౓ͷن໛ͷॲཧΛॻ͖͍ͨέʔε͕ଟ͍ • JSXͷѻ͍ʹਏΈ͕͋Δ • ֎෦ͷJSXίϯύΠϥΛݺͼग़ͯ͠ 
 ͦͷ݁ՌΛຒΊࠐΉͳͲͷখࡉ޻͕ඞཁ
50. Kivy
51. Kivy • Φʔϓϯιʔεͷ 
 ϚϧνλονΞϓϦέʔγϣϯϑϨʔϜϫʔΫ • OpenGL ES 2.0ͱޓ׵ੑͷ͋Δ 
 άϥϑΟοΫඳըϥΠϒϥϦ • தؒݴޠKVͰͷը໘ɾ΢ΟδΣοτͷఆٛ • Android / iOS / Linux / Mac / WindowsʹରԠ
52. KivyʹΑΔΞϓϦέʔγϣϯ։ൃͷ͢͢Ί • PyCon JP 2017ͰͷJun Okazaki͞Μͷൃද • https://www.youtube.com/watch?v=iVOVpIXzbYY • https://www.slideshare.net/JunOkazaki1/pyconjp2017-kivy
53. KivyʹΑΔHello world from kivy.app import App from kivy.uix.button import Button class TestApp(App): def build(self): return Button(text='Hello World') TestApp().run()
54. Buildozer • KivyΞϓϦͷAndroid / iOS޲͚ͷύοέʔδϟʔ • Android޲͚ͷύοέʔδϯάͷࡍʹ͸ 
 Buildozer಺෦Ͱpython-for-androidΛར༻ • Ұ෦ͷPythonύοέʔδͷΠϯετʔϧʹ΋ରԠ • ඇରԠͷύοέʔδΛΠϯετʔϧ͢Δʹ͸ 
 recipeΛࣗྗͰ࡞੒͢Δඞཁ͕͋Δ
55. Plyer • OS΍୺຤ݻ༗ͷػೳΛ 
 Python͔Βར༻͢ΔͨΊͷAPI܈ • ৼಈ / Χϝϥ / GPS ... • ରԠ͍ͯ͠ͳ͍ϓϥοτϑΥʔϜͰ͸ 
 NotImplementedErrorΛraise͢Δ
56. Plyerͷαϯϓϧ from plyer import vibrator vibrator.vibrate(10)
57. Pyjnius • Python͔ΒJavaͷΫϥεʹ 
 ΞΫηε͢ΔͨΊͷϞδϡʔϧ • Plyer΋಺෦ͰPyjniusΛར༻͍ͯ͠Δ
58. Pyjniusͷαϯϓϧ from jnius import autoclass Context = autoclass('android.content.Context') PythonActivity = autoclass('org.kivy.android.PythonActivity') activity = PythonActivity.mActivity vibrator = activity.getSystemService(Context.VIBRATOR_SERVICE) vibrator.vibrate(10000)
59. Positive ! • ϑϨʔϜϫʔΫͷઃܭࢥ૝ͱͯ͠ 
 Ϛϧνλον͕ߟྀ͞Ε͍ͯΔ • OS͝ͱͷ෼ذ͕සग़͢Δ 
 ͳΜͪΌͬͯϚϧνϓϥοτϑΥʔϜͰ͸ͳ͍ 
 • ։ൃ͕׆ൃʹߦΘΕ͍ͯͯ҆৺ײ͕͋Δ
60. Negative $ • Flutter΍Jetpack Compose͕ଘࡏ͢Δ 
 ྩ࿨ͷ࣌୅ʹ͓͍ͯ͸ 
 UIͷͨΊʹผͷݴޠ͕ඞཁʹͳΔͷ͸ඍົ • ଞϑϨʔϜϫʔΫͱൺ΂Δͱ 
 ͢΂ͯʹ͓͍ͯϫϯςϯϙಈ࡞͕஗͍
61. Chaquopy
62. Chaquopy • ެࣜαΠτᐌ͘ “Python SDK for Android” • build.gradleʹهड़Λ௥Ճͯ͠ಋೖ • Java / Kotlinͷ୅ΘΓʹ 
 PythonͰ࣮૷͢ΔΠϝʔδ (ࠞࡏ΋Մೳ)
63. ChaquopyͰͷHello world from android.os import Bundle from android.support.v7.app import AppCompatActivity from java import jvoid, Override, static_proxy class MainActivity(static_proxy(AppCompatActivity)): @Override(jvoid, [Bundle]) def onCreate(self, state): AppCompatActivity.onCreate(self, state) self.setContentView(R.layout.activity_main)
64. ࠓԶ͕ॻ͍͍ͯΔͷ͸Java͚ͩͬʁ &
65. static_proxy • JavaͷclassΛҾ਺ͱͯ͠౉͠ 
 JavaͷιʔείʔυΛੜ੒͢Δ • Activity͸͜ͷϝιουͷ໭Γ஋Λܧঝ͢Δ • XMLͳͲίʔυҎ֎͔Β΋ࢀর͞ΕΔͨΊ 
 ͍ͬͨΜJavaʹ͢Δඞཁ͕͋ΔͱࢥΘΕΔ
66. static_proxyͷαϯϓϧ # <略> class MainActivity(static_proxy(AppCompatActivity)): # <略>
67. dynamic_proxy • JavaͷinterfaceΛҾ਺ͱͯ͠౉͠ 
 ࣮ߦ࣌ʹಈతʹJavaͷΫϥεΛੜ੒͢Δ • ಺෦Ͱ͸java.lang.reflect.ProxyΛར༻͍ͯ͠Δ • AndroidͰ͸interfaceΛଟ༻͢ΔͨΊ 
 ඇৗʹॏཁʹͳΔؔ਺
68. dynamic_proxyͷαϯϓϧ # <略> @Override(jvoid, [Bundle]) def onCreate(self, state): AppCompatActivity.onCreate(self, state) self.setContentView(R.layout.activity_main) class Listener(dynamic_proxy(View.OnClickListener)): def onClick(self, view): # クリック時の処理 self.findViewById(R.id.button).setOnClickListener(Listener())
69. Pythonύοέʔδͷಋೖ • ΞϓϦϨϕϧͷbuild.gradle಺ʹಋೖ͢ΔύοέʔδΛྻڍ͢Δ • ެࣜαΠτᐌ͘PyPIͷ্Ґ1000ύοέʔδத 
 88%͸ΠϯετʔϧՄೳ • ChaquopyͷαʔόʔͰҰ෦ύοέʔδͷwheelϑΝΠϧΛఏڙ • طଘͷAndroid޲͚ύοέʔδͰ͸࣮ݱෆՄೳͳػೳΛ 
 ఏڙ͢Δํ޲ʹৼΓ੾͍ͬͯΔҹ৅ (ݸਓͷײ૝Ͱ͢)
70. Android্Ͱಈ͘pandas from android.os import Bundle from android.support.v7.app import AppCompatActivity from java import jvoid, Override, static_proxy import pandas as pd class MainActivity(static_proxy(AppCompatActivity)): @Override(jvoid, [Bundle]) def onCreate(self, state): AppCompatActivity.onCreate(self, state) self.setContentView(R.layout.activity_main) url = "http://npb.jp/bis/players/81085115.html" df = pd.read_html(url)[1].query('年度 == 年度') Log.d("PyConJP", str(df['本塁打'].sum()))
71. ϥΠηϯεྉۚ • ΦʔϓϯιʔεͰͷར༻͸ແྉ • ΫϩʔζυιʔεͰͷར༻͸ 
 ։ൃऀ਺ʹԠͨ͡ϥΠηϯεܖ໿͕ඞཁ • 1ΞϓϦͷΈ༗ޮͳϥΠηϯε $39/ਓ • ΞϓϦ਺ແ੍ݶͷϥΠηϯε $79/ਓ
72. Positive ! • ಋೖ͕༰қ • Java / Pythonͷύοέʔδͱ࿈ܞ͕Մೳ • Java / KotlinʹΑΔΞϓϦ։ൃͷ஌ݟΛ 
 ΄΅ͦͷ··׆͔͢͜ͱ͕Ͱ͖Δ
73. Negative $ • ແྉͰ͸ͳ͍ • ϓϩΩγΛ௨ͨ͠Ϋϥεͷิ׬ʹਏΈ͕͋Δ • ·ΔͰJava΍KotlinΛॻ͍͍ͯΔؾ෼ʹͳΔ
74. ͓·͚
75. ੯͘͠΋બ֎ • BeeWare • PySide for Android
76. BeeWare • PythonʹΑΔΫϩεϓϥοτϑΥʔϜ։ൃ؀ڥ • Mac / Windows / Linux / iPhone / iPad / Android 
 AppleTV / tvOSʹରԠ • Android͸VOCͱͷ࿈ܞͰಈ࡞͢Δ • PythonόΠτίʔυΛJavaόΠτίʔυʹม׵
77. BeeWareબ֎ͷཧ༝ • Android Studio 3ܥͰಈ࡞͠ͳ͍ • Apple੡඼༏ઌͷํ਑Λެݴ͓ͯ͠Γ 
 ରԠ͞ΕΔ·Ͱ͕͔͔࣌ؒΓͦ͏
78. PySide for Android • PySide (QtͷPythonόΠϯσΟϯά) ʹΑΔ 
 AndroidΞϓϦ։ൃ؀ڥ • Qtͱ͍͏࣮੷ͷ͋ΔGUIϥΠϒϥϦΛ 
 AndroidͰར༻͢Δ͜ͱ͕Ͱ͖Δ
79. PySide for Androidબ֎ͷཧ༝ • Android্Ͱಈ͔ͤ·ͤΜͰͨ͠…… • ΋͠஌ݟΛ͓࣋ͪͷํ͕͍Βͬ͠ΌͬͨΒ 
 ΞυόΠεΛ͍͚ͨͩΔͱ޾͍Ͱ͢
80. ·ͱΊ
81. React Native + Transcrypt • ࣮੷ͷ͋ΔReact Nativeʹ৐͔ͬΔ͜ͱ͕Ͱ͖Δ • React NativeΛૉͷJavaScriptͰ 
 ॻ͍͍ͯΔͷͰ͋Ε͹࠾༻ͯ͠΋ྑ͍͔΋ • ࢒೦ͳ͕ΒTypeScript౳ͷ༗ྗͳAltJSΛ 
 ஔ͖׵͑Δ΄ͲͷΠϯύΫτ͸……
82. Kivy • ଞݴޠʹҾ͖ͣΒΕΔ͜ͱͷͳ͍ 
 PythonicͳAndroid։ൃ͕Ͱ͖Δ • ։ൃ͕׆ൃͰࠓޙʹظ଴͕࣋ͯΔ • Androidʹؔͯ͠͸ 
 ୺຤ͷεϖοΫ͕௥͍͍͍ͭͯͳ͍͔΋
83. Chaquopy • ࣮༻ੑͰ͸τοϓΫϥε • طଘͷAndroid։ൃͷ஌ࣝΛ 
 ͦͷ··׆͔ͤΔͷ͸େ͖͍ • ϥΠηϯεྉ͕ۚ໰୊ʹͳΒͳ͚Ε͹ 
 ༗ྗͳબ୒ࢶʹͳΔ͸ͣ
84. ࠷ޙʹ • ʮPythonͰAndroidΞϓϦ։ൃ͸ݫ͍͠ʯ 
 ͱ͍͏݁࿦ʹ͢Δͭ΋ΓͰCfPΛఏग़͕ͨ͠ 
 ͍͍ҙຯͰཪ੾ΒΕͨ • Android Studio͸αΠζ͕େ͖͍ͷͰ 
 ձ৔ͷWi-FiͰ͸μ΢ϯϩʔυ͠ͳ͍ͰͶʂ
85. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠