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ৗੜ׆Ͱ͏ Python
Python for Everyday
Hayao Suzuki
Python Charity Talks in Japan 2021.09
September 11, 2021
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Who am I ?
͓લ୭Α
໊લ Hayao Suzukiʢླɹॣʣ
Twitter @CardinalXaro
ࣄ Software Developer @ BeProud Inc.
› גࣜձࣾϏʔϓϥυ
› IT ษڧձࢧԉαʔϏε connpass
› ΦϯϥΠϯֶशαʔϏε PyQ
› γεςϜ։ൃͷͨΊͷυΩϡϝϯταʔϏε Tracery
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Who am I ?
༁ɾࠪಡٕͨ͠ज़ॻʢൈਮʣ
› ೖ Python 3 ୈ 2 ൛ (O’Reilly Japan)
› Effective Python ୈ 2 ൛ (O’Reilly Japan)
› ػցֶशʹΑΔ࣮༻ΞϓϦέʔγϣϯߏங (O’Reilly Japan)
› PyTorch ͱ fastai Ͱ͡ΊΔσΟʔϓϥʔχϯά (O’Reilly Japan)
› ࣮ફ ࣌ܥྻղੳ (O’Reilly Japan) New!
https://xaro.hatenablog.jp/ ʹϦετ͕͋Γ·͢ɻ
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Who am I ?
ൃදϦετʢൈਮʣ
› ϨΨγʔ Django ΞϓϦέʔγϣϯͷݱԽ (DjangoCongress JP 2018)
› SymPy ʹΑΔࣜॲཧ (PyCon JP 2018)
› Python ͱָ͠Ήॳ (PyCon mini Hiroshima 2019)
› ܅ cmath Λ͍ͬͯΔ͔ (PyCon mini Shizuoka 2020)
› ΠϯϝϞϦʔετϦʔϜ׆༻ज़ (PyCon JP 2020)
https://xaro.hatenablog.jp/ ʹϦετ͕͋Γ·͢ɻ
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ࠓͷςʔϚ
ৗੜ׆Ͱ͏ Python
› Python ͷ׆༂ॴࣄ͚ͩͰͳ͍ʂ
› ৗੜ׆Ͱʹཱͭ Python ඪ४ύοέʔδΛհ͠·͢ɻ
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ࠓͷςʔϚ
ৗੜ׆Ͱ͏ Python
› datetime ύοέʔδ
› secrets ύοέʔδ
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࣮
ൃച·ͰͷΧϯτμϯ
ʰೖ Python 3 ୈ 2 ൛ʱ͕ 2021 3 ݄ 22 ʹൃߦ͞ΕΔ͕ɺ͋ͱԿͩΖ
͏͔ɻ
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ܭࢉ
datetime ύοέʔδͰܭࢉ
>>> import datetime
>>> xday = datetime.date(2021, 3, 22)
>>> today = datetime.date(2021, 9, 11)
>>> f"༁ຊ͕ൃߦ͞Ε͔ͯΒ{(today - xday).days}ܦա"
' ༁ຊ͕ൃߦ͞Ε͔ͯΒ 173 ܦա'
େࣄͳه೦ܭࢉʹͥͻ datetime ύοέʔδΛ͓͏ʂ
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࣮
ύεϫʔυΛϥϯμϜʹੜ͍ͨ͠
ύεϫʔυΛొ͍͕ͨ͠ɺ͍·Θ͠Α͘ͳ͍ɻؾܰʹ࡞Γ͍ͨɻ
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ύεϫʔυੜ
secrets ύοέʔδͰύεϫʔυੜ
>>> import secrets
>>> secrets.token_urlsafe(8) # จࣈ੍ݶʹԠͯ͡దٓௐ
'rwQ_XUqyrbo'
େࣄͳύεϫʔυʹͥͻ secrets ύοέʔδΛ͓͏ʂ
˞ύεϫʔυϚωʔδϟͷ࠾༻ݕ౼͠·͠ΐ͏ɻ
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࣮
ൿີͷ࣭ʹਅ໘ʹ͑ͨ͘ͳ͍
मֶཱྀߦͰߦͬͨॴʁ ޫʂ ࡳຈʂ
தֶߍͷमֶཱྀߦϨΞέʔεͳͷͰݴ͑·ͤΜɻ
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ൿີͷ࣭
secrets ύοέʔδͰൿີͷ࣭ճ
import secrets
hira = "".join([chr(x) for x in range(ord("͋"), ord("Μ") + 1)])
kana = "".join([chr(x) for x in range(ord("Ν"), ord("ϲ") + 1)])
cs = hira + kana
for _ in range(15):
print("".join([secrets.choice(cs) for x in range(8)]))
ൿີͷ࣭ʹͥͻ secrets ύοέʔδͰཱ͔͓ͪ͏ʂ
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ࠓͷςʔϚ
ৗੜ׆Ͱ͏ Python
› datetime ύοέʔδɿࠣࡉͳ࣌ܭࢉʹ
› secrets ύοέʔδɿ҆શͳύεϫʔυੜʹ
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