파이썬에서 텍스트 파일 쓰기

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by joviansummer
original STEEMIT post: https://steemit.com/blog/@joviansummer/4kfzem

파이썬에서 텍스트 파일을 쓰는 방법입니다. 지난번에 썼던 텍스트 파일 읽기에서 이어지는 내용입니다.

파이썬에서 텍스트 파일 읽기 https://steemit.com/hive-141029/@joviansummer/2v14rm

파일에 쓰려면 open() 함수로 파일을 열때 쓰기(w) 또는 이미 저장된 내용 뒤에 추가하기(a) 모드로 설정하면 됩니다.

# test.txt 파일을 쓰기 모드로 열고 파일 객체를 f에 할당
f = open('test.txt', 'w')

파일을 쓰기(w) 모드로 열어서 작업하면 이전에 저장되어 있던 내용이 있을 경우에는 삭제가 됩니다. 내용이 있는 파일 뒤에 새로운 내용을 덧붙이려면 추가하기(a) 모드로 열면 됩니다.

이제 문자열을 파일에 쓸 수 있습니다. 여러 줄로 내용을 쓸 경우 줄바꿈('\n')을 추가해 줍니다.

# 문자열 쓰기
f.write('hello world.\n')
f.write('testing file operation.\n')

작업이 끝나면 잊지 말고 파일 객체를 닫아줍니다.

f.close()

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