Python 3.4+base64function

base64.a85decode()

Ascii85 and Base85

Decodes Ascii85 into bytes. The framing must match: '<~ … ~>' data is read only with adobe=True.

Syntax

base64.a85decode(b, *, foldspaces=False, adobe=False, ignorechars=b' \t\n\r\v')

A string from a PDF in '<~ … ~>' framing fails without adobe=True, and vice versa. The exception type changed between versions (ValueError, and in 3.15 binascii.Error, its subclass), so catch ValueError. Whitespace is ignored by default, and 'z' expands into four zero bytes.

Examples

import base64
data = b'<~87cURD]i,"Ebo80~>'
print(base64.a85decode(data, adobe=True))  # → b'Hello World!'
try:
    base64.a85decode(data)
except ValueError as e:
    print('ошибка без adobe=True')  # → ошибка без adobe=True

See also

Common errors

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