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tempfile

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ファイルの入出力のテストに使います。

import tempfile

#withを閉じるとファイルは削除されます
with tempfile.TemporaryFile(mode='w+') as t:
    t.write('hello')
    t.seek(0)
    print(t.read())

#withを閉じた後もファイルは残ります
with tempfile.NamedTemporaryFile(delete=False, mode='w+') as t:
    print(t.name)
    t.write('test\n')
    t.seek(0)
    print(t.read())

#withを閉じるとディレクトリは削除されます
with tempfile.TemporaryDirectory() as td:
    print(td)

#ディレクトリは削除されません
temp_dir = tempfile.mkdtemp()
print(temp_dir)
hello
/var/folders/0j/3nls1w512cdc4h2fr4543lw40000gn/T/tmplb079t65
test

/var/folders/0j/3nls1w512cdc4h2fr4543lw40000gn/T/tmp_tnjm74h
/var/folders/0j/3nls1w512cdc4h2fr4543lw40000gn/T/tmp1b75osd0
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