AIOFileOpen

サマリー

Opens a local or cloud file handle that supports context manager protocol.

構文

AIOFileOpen (path, {mode}, {encoding}, {mime})

パラメーター	説明	データ タイプ
path	The relative path from the current working directory or an absolute path (absolute vsi path for cloud).	String
mode	Specifies the mode that will be used for opening a file. r—The file will be opened in read mode. w—The file will be opened in write mode rb—The file will be opened in binary format for reading. wb—The file will be opened in binary format for writing 注意: Only read mode honors the encoding parameter. (デフォルト値は次のとおりです 'r')	String
encoding	Specifies the encoding that will be used to open a file. utf-8—UTF-8 encoding will be used. This is the default. utf-16—UTF-16 encoding will be used. ascii—ASCII encoding will be used. (デフォルト値は次のとおりです 'utf-8')	String
mime	The Multipurpose Internet Mail Extensions (MIME) headers. For faster creation and setting of metadata, set MIME headers when creating the file. (デフォルト値は次のとおりです None)	Dictionary

戻り値

データ タイプ	説明
Object	Returns the file handler as an AIOFile object.

コードのサンプル

# For opening a file in the cloud store
with AIOFileOpen(r"C:\data\datacloud.acs\datafile.txt", 'r') as rcsfile:
    rcsfile.seek(5)
    rcsfile.tell()
    print(rcsfile.read(4))

# For opening a local file
with AIOFileOpen(r"C:\data\datafile.txt", 'r') as rcsfile:
    rcsfile.seek(5)
    rcsfile.tell()
    print(rcsfile.read(4))