Python isinstance: пошаговое руководство

–§—É–Ω–∫—Ü–∏—è isinstance () –≤ Python –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç –∑–Ω–∞—á–µ–Ω–∏–µ true –∏–ª–∏ false, –µ—Å–ª–∏ –ø–µ—Ä–µ–º–µ–Ω–Ω–∞—è —Å–æ–æ—Ç–≤–µ—Ç—Å—Ç–≤—É–µ—Ç —É–∫–∞–∑–∞–Ω–Ω–æ–º—É —Ç–∏–ø—É –¥–∞–Ω–Ω—ã—Ö. –°–∏–Ω—Ç–∞–∫—Å–∏—Å –¥–ª—è isinstance () –≤ Python: isinstance (variable_to_check, data_type) .

–ü—Ä–æ–≤–µ—Ä–∫–∞ —Ç–∏–ø–∞ –¥–∞–Ω–Ω—ã—Ö –∫–æ–Ω–∫—Ä–µ—Ç–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è - –æ–±—ã—á–Ω–∞—è –æ–ø–µ—Ä–∞—Ü–∏—è –≤ –ø—Ä–æ–≥—Ä–∞–º–º–∏—Ä–æ–≤–∞–Ω–∏–∏. –ù–∞–ø—Ä–∏–º–µ—Ä, –≤—ã –º–æ–∂–µ—Ç–µ –ø—Ä–æ–≤–µ—Ä–∏—Ç—å, —è–≤–ª—è–µ—Ç—Å—è –ª–∏ –∑–Ω–∞—á–µ–Ω–∏–µ, –∫–æ—Ç–æ—Ä–æ–µ –≤—ã —Å–æ—Ö—Ä–∞–Ω–∏–ª–∏ –≤ –ø–µ—Ä–µ–º–µ–Ω–Ω–æ–π, —Å—Ç—Ä–æ–∫–æ–π –∏–ª–∏ —á–∏—Å–ª–æ–º, –ø–æ—Å–∫–æ–ª—å–∫—É –∫–∞–∂–¥—ã–π –∏–∑ —ç—Ç–∏—Ö —Ç–∏–ø–æ–≤ –¥–∞–Ω–Ω—ã—Ö –ø–æ-—Ä–∞–∑–Ω–æ–º—É —Ä–∞–±–æ—Ç–∞–µ—Ç –≤ –∫–æ–¥–µ.

–í–æ—Ç –≥–¥–µ isinstance ( ) –º–æ–∂–µ—Ç –±—ã—Ç—å –ø–æ–ª–µ–∑–Ω–æ–π. isinstance () - —ç—Ç–æ –≤—Å—Ç—Ä–æ–µ–Ω–Ω—ã–π –º–µ—Ç–æ–¥ Python, –∫–æ—Ç–æ—Ä—ã–π –ø–æ–∑–≤–æ–ª—è–µ—Ç –≤–∞–º –ø—Ä–æ–≤–µ—Ä—è—Ç—å —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω–æ–≥–æ –∑–Ω–∞—á–µ–Ω–∏—è. –ù–∞–ø—Ä–∏–º–µ—Ä, –≤—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å isinstance (), —á—Ç–æ–±—ã –ø—Ä–æ–≤–µ—Ä–∏—Ç—å, —è–≤–ª—è–µ—Ç—Å—è –ª–∏ –∑–Ω–∞—á–µ–Ω–∏–µ —Å—Ç—Ä–æ–∫–æ–π –∏–ª–∏ —Å–ø–∏—Å–∫–æ–º.

–í —ç—Ç–æ–º —Ä—É–∫–æ–≤–æ–¥—Å—Ç–≤–µ –≤—ã —É–∑–Ω–∞–µ—Ç–µ, –∫–∞–∫ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å isinstance ( ) –≤ Python –∏ –ø—Ä–µ–¥–æ—Å—Ç–∞–≤–∏—Ç –Ω–µ—Å–∫–æ–ª—å–∫–æ –ø—Ä–∏–º–µ—Ä–æ–≤, –∫–æ—Ç–æ—Ä—ã–µ –ø–æ–º–æ–≥—É—Ç –≤–∞–º –ª—É—á—à–µ –ø–æ–Ω—è—Ç—å –µ–≥–æ.

–û–±–∑–æ—Ä Python - —ç—Ç–æ —ç–∫–∑–µ–º–ø–ª—è—Ä

–ö–æ–≥–¥–∞ –≤—ã –ø–∏—à–µ—Ç–µ –∫–æ–¥ –Ω–∞ Python, –≤—ã –∏—Å–ø–æ–ª—å–∑—É–µ—Ç–µ —Ä–∞–∑–ª–∏—á–Ω—ã–µ —Ç–∏–ø—ã –¥–∞–Ω–Ω—ã—Ö . –≠—Ç–∏ —Ç–∏–ø—ã –¥–∞–Ω–Ω—ã—Ö –≤–∫–ª—é—á–∞—é—Ç —Å—Ç—Ä–æ–∫–∏, —á–∏—Å–ª–∞, —Å–ø–∏—Å–∫–∏, –∫–æ—Ä—Ç–µ–∂–∏ –∏ —Å–ª–æ–≤–∞—Ä–∏. –ö–∞–∂–¥—ã–π —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö –∏–º–µ–µ—Ç —Å–≤–æ–π —Å–æ–±—Å—Ç–≤–µ–Ω–Ω—ã–π –Ω–∞–±–æ—Ä –ø—Ä–∞–≤–∏–ª, –∫–æ—Ç–æ—Ä—ã–µ –æ–ø—Ä–µ–¥–µ–ª—è—é—Ç, –∫–∞–∫ —ç—Ç–∏ –¥–∞–Ω–Ω—ã–µ —Ö—Ä–∞–Ω—è—Ç—Å—è –∏ —É–ø—Ä–∞–≤–ª—è—é—Ç—Å—è. –ù–∞–ø—Ä–∏–º–µ—Ä, –ø—Ä–∏ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–∏ Python –≤—ã –º–æ–∂–µ—Ç–µ –≤—ã–ø–æ–ª–Ω—è—Ç—å –º–∞—Ç–µ–º–∞—Ç–∏—á–µ—Å–∫–∏–µ –≤—ã—á–∏—Å–ª–µ–Ω–∏—è —Å —á–∏—Å–ª–∞–º–∏, –Ω–æ –Ω–µ —Å–æ —Å—Ç—Ä–æ–∫–∞–º–∏.

–ü–æ—ç—Ç–æ–º—É –≤–∞–∂–Ω–æ, —á—Ç–æ–±—ã –≤—ã —Ä–∞–±–æ—Ç–∞–ª–∏ —Å –ø—Ä–∞–≤–∏–ª—å–Ω—ã–º–∏ —Ç–∏–ø–∞–º–∏ –¥–∞–Ω–Ω—ã—Ö –≤ —Å–≤–æ–µ–π –ø—Ä–æ–≥—Ä–∞–º–º–µ. –í—ã –º–æ–∂–µ—Ç–µ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞—Ç—å isinstance –≤ Python, —á—Ç–æ–±—ã —É–±–µ–¥–∏—Ç—å—Å—è, —á—Ç–æ –¥–∞–Ω–Ω—ã–µ, —Å –∫–æ—Ç–æ—Ä—ã–º–∏ –≤—ã —Ä–∞–±–æ—Ç–∞–µ—Ç–µ, —Ö—Ä–∞–Ω—è—Ç—Å—è –∫–∞–∫ —Å–æ–æ—Ç–≤–µ—Ç—Å—Ç–≤—É—é—â–∏–π —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö. –ü—Ä–∏ –∏—Å–ø–æ–ª—å–∑–æ–≤–∞–Ω–∏–∏ Python –ø—Ä–æ–≤–µ—Ä—è–π—Ç–µ —Ç–∏–ø—ã –¥–∞–Ω–Ω—ã—Ö –ø–æ –º–µ—Ä–µ –Ω–µ–æ–±—Ö–æ–¥–∏–º–æ—Å—Ç–∏.

isinstance () - —ç—Ç–æ –≤—Å—Ç—Ä–æ–µ–Ω–Ω–∞—è –≤ Python —Ñ—É–Ω–∫—Ü–∏—è, –∫–æ—Ç–æ—Ä–∞—è –ø—Ä–æ–≤–µ—Ä—è–µ—Ç, —Å–æ—Ö—Ä–∞–Ω–µ–Ω–æ –ª–∏ –∑–Ω–∞—á–µ–Ω–∏–µ –∫–∞–∫ –æ–ø—Ä–µ–¥–µ–ª–µ–Ω–Ω—ã–π —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö. –í –æ—Ç–ª–∏—á–∏–µ –æ—Ç –º–µ—Ç–æ–¥–∞ type (), –∫–æ—Ç–æ—Ä—ã–π –æ–±—Å—É–∂–¥–∞–µ—Ç—Å—è –¥–∞–ª–µ–µ –≤ —ç—Ç–æ–π —Å—Ç–∞—Ç—å–µ, –º–µ—Ç–æ–¥ isinstance () –≤–æ–∑–≤—Ä–∞—â–∞–µ—Ç —Ç–æ–ª—å–∫–æ True –∏–ª–∏ False, –≤ –∑–∞–≤–∏—Å–∏–º–æ—Å—Ç–∏ –æ—Ç —Ç–æ–≥–æ, —Ö—Ä–∞–Ω–∏—Ç—Å—è –ª–∏ –ø—Ä–æ–≤–µ—Ä—è–µ–º–æ–µ –∑–Ω–∞—á–µ–Ω–∏–µ –≤ –≤–∏–¥–µ —É–∫–∞–∑–∞–Ω–Ω–æ–≥–æ —Ç–∏–ø–∞ –¥–∞–Ω–Ω—ã—Ö –∏–ª–∏ —Ç–∏–ø–æ–≤.

–°–∏–Ω—Ç–∞–∫—Å–∏—Å –¥–ª—è isinstance () —Å–ª–µ–¥—É—é—â–∏–π:

81% —É—á–∞—Å—Ç–Ω–∏–∫–æ–≤ –∑–∞—è–≤–∏–ª–∏, —á—Ç–æ –ø–æ—Å–ª–µ –±—É—Ç–∫–µ–º–ø–∞ –æ–Ω–∏ –ø–æ—á—É–≤—Å—Ç–≤–æ–≤–∞–ª–∏ —Å–µ–±—è –±–æ–ª–µ–µ —É–≤–µ—Ä–µ–Ω–Ω—ã–º–∏ –≤ —Å–≤–æ–∏—Ö –ø–µ—Ä—Å–ø–µ–∫—Ç–∏–≤–∞—Ö —Ç—Ä—É–¥–æ—É—Å—Ç—Ä–æ–π—Å—Ç–≤–∞ –≤ —Å—Ñ–µ—Ä–µ –≤—ã—Å–æ–∫–∏—Ö —Ç–µ—Ö–Ω–æ–ª–æ–≥–∏–π. –ü—Ä–æ–π–¥–∏—Ç–µ —É—á–µ–±–Ω—ã–π –∫—É—Ä—Å —Å–µ–≥–æ–¥–Ω—è.

–°—Ä–µ–¥–Ω–∏–π –≤—ã–ø—É—Å–∫–Ω–∏–∫ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –ø–æ—Ç—Ä–∞—Ç–∏–ª –º–µ–Ω–µ–µ —à–µ—Å—Ç–∏ –º–µ—Å—è—Ü–µ–≤ –Ω–∞ –ø–µ—Ä–µ—Ö–æ–¥–Ω—É—é –∫–∞—Ä—å–µ—Ä—É, –æ—Ç –Ω–∞—á–∞–ª–∞ —É—á–µ–±–Ω–æ–≥–æ –ª–∞–≥–µ—Ä—è –¥–æ –ø–æ–∏—Å–∫–∞ —Å–≤–æ–µ–π –ø–µ—Ä–≤–æ–π —Ä–∞–±–æ—Ç—ã.

isinstance ( ) –ø—Ä–∏–Ω–∏–º–∞–µ—Ç –¥–≤–∞ –ø–∞—Ä–∞–º–µ—Ç—Ä–∞, –æ–±–∞ –∏–∑ –∫–æ—Ç–æ—Ä—ã—Ö —è–≤–ª—è—é—Ç—Å—è –æ–±—è–∑–∞—Ç–µ–ª—å–Ω—ã–º–∏:

• object : –æ–±—ä–µ–∫—Ç, —Ç–∏–ø –¥–∞–Ω–Ω—ã—Ö –∫–æ—Ç–æ—Ä–æ–≥–æ –≤—ã —Ö–æ—Ç–∏—Ç–µ –ø—Ä–æ–≤–µ—Ä–∏—Ç—å.
• data_types : —Ö–æ—Ç—è –±—ã –æ–¥–∏–Ω –∏–∑ –≤–æ–∑–º–æ–∂–Ω—ã—Ö —Ç–∏–ø–æ–≤ –¥–∞–Ω–Ω—ã—Ö –æ–±—ä–µ–∫—Ç–∞. & nbsp;