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Вступ до імпорту даних у Python

Hugo Bowne-Anderson

Data Scientist at DataCamp

Імпорт даних

Плоскі файли, напр., .txt, .csv
Файли з іншого ПЗ

ch_1_1_v2.004.png

Імпорт даних

Плоскі файли, напр., .txt, .csv
Файли з іншого ПЗ
Реляційні бази даних

ch_1_1_v2.005.png

Текстові файли

ch_1_1_v2.007.png

Табличні дані

titanic.csv

                        Name      Sex  Cabin  Survived
     Braund, Mr. Owen Harris     male    NaN         0
  Cumings, Mrs. John Bradley   female    C85         1
      Heikkinen, Miss. Laina   female    NaN         1
Futrelle, Mrs. Jacques Heath   female   C123         1
    Allen, Mr. William Henry     male    NaN         0

¹ Джерело: Kaggle

Табличні дані

titanic.csv

titanic.csv with a row highlighted

Табличні дані

titanic.csv

titanic.csv with a column highlighted

Плоский файл

Читання текстового файла

filename = 'huck_finn.txt'

file = open(filename, mode='r')  # 'r' is to read

text = file.read()

file.close()

Виведення текстового файла

print(text)

YOU don't know about me without you have read a book by
the name of The Adventures of Tom Sawyer; but that 
ain't no matter. That book was made by Mr. Mark Twain,
and he told the truth, mainly. There was things which 
he stretched, but mainly he told the truth.  That is 
nothing. never seen anybody but lied one time or 
another, without it was Aunt Polly, or the widow, or 
maybe Mary. Aunt Polly--Tom's Aunt Polly, she is--and
Mary, and the Widow Douglas is all told about in that
book, which is mostly a true book, with some 
stretchers, as I said before.

Запис у файл

filename = 'huck_finn.txt'
file = open(filename, mode='w')  # 'w' is to write
file.close()

Менеджер контексту with

with open('huck_finn.txt', 'r') as file:
    print(file.read())

YOU don't know about me without you have read a book by
the name of The Adventures of Tom Sawyer; but that 
ain't no matter. That book was made by Mr. Mark Twain,
and he told the truth, mainly. There was things which 
he stretched, but mainly he told the truth.  That is 
nothing. never seen anybody but lied one time or 
another, without it was Aunt Polly, or the widow, or 
maybe Mary. Aunt Polly--Tom's Aunt Polly, she is--and 
Mary, and the Widow Douglas is all told about in that 
book, which is mostly a true book, with some 
stretchers, as I said before.

У вправах ви будете:

Виводити файли в консоль
Виводити окремі рядки
Обговорити плоскі файли

Давайте потренуємось!

Вступ до імпорту даних у Python