otp.ops.base64_encode#

base64_encode(value)#

Encodes the string value with Base64 algorithm in accordance to RFC 4648.

Parameters:: value (str, Operation)
Return type:: Operation

Examples

Encoding string literal:

>>> data = otp.Tick(A=otp.ops.base64_encode('hello'))
>>> otp.run(data)
        Time         A
0 2003-12-01  aGVsbG8=

Encoding each string in a column:

>>> data = otp.Ticks(A=['hello', 'world'])
>>> data['X'] = otp.ops.base64_encode(data['A'])
>>> otp.run(data)
                     Time      A                                                                 X
0 2003-12-01 00:00:00.000  hello  aGVsbG8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
1 2003-12-01 00:00:00.001  world  d29ybGQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Note that all NULL-characters are also encoded by default, they can be removed with rtrim():

>>> data = otp.Ticks(A=['hello', 'world'])
>>> data['X'] = otp.ops.base64_encode(data['A'].str.rtrim())
>>> otp.run(data)
                     Time      A         X
0 2003-12-01 00:00:00.000  hello  aGVsbG8=
1 2003-12-01 00:00:00.001  world  d29ybGQ=