[docs] binascii.b2a_base64 can convert data length more than 57

[Georg Brandl]

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Am 05.06.2013 05:09, schrieb Chen, Liying:
> Hi,
> 
> 
> 
> In the document binascii.b2a_base64(data) said the data length should less
> than 57.But I can use it for more than 57.Can you give me an explain?
> 
> 
> 
>>>> import struct import binascii payload =
>>>> struct.pack('>hhiii',4,0,0,0,0) payload = payload*10 len(payload)
> 160
>>>> binascii.b2a_base64(payload)
> 'AAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAABAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAA==\n'
>>>>
> 
a = binascii.b2a_base64(payload)
>>>> len(a)
> 217
>>>> 

Hi Liying,

the function itself can process arbitrary lengths.  The documentation just
states that if you want the *result* to be compatible to the base64 standard,
the input should be <= 57 characters in length.

cheers,
Georg
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