On 11/11/2015 08:21 PM, Michael Torrie wrote:
> On 11/11/2015 08:04 PM, fl wrote:
>> Hi,
>>
>> I am learning python. I see a previous post has such code:
>>
>>
>>
>>
>>
>> >>> data = '"binääridataa"\n'.encode('utf-8')
>> >>> f = open('roska.txt', 'wb')
>> >>> f.write(data)
>> 17
>> >>> f.close()
>>
>> The .encode methods produced a bytestring, which Python likes to display
>> as ASCII characters where it can and in hexadecimal where it cannot:
>>
>> >>> data
>> b'"bin\xc3\xa4\xc3\xa4ridataa"\n'
>>
>> An "octal dump" in characters (where ASCII, otherwise apparently octal)
>> and the corresponding hexadecimal shows that it is, indeed, these bytes
>> that ended up in the file:
>>
>> $ od -t cx1 roska.txt
> ^^^
> This is most likely a bash prompt. Therefore "od" is a program on your
> computer. Nothing to do with Python at all.
>
> To get Python to display \x## hex codes for non-ascii characters in a
> byte stream, you can print out the repr() of the byte string. For example:
>
> print (repr(my_unicode_string.encode('utf-8')))
Also there are numerous recipes for doing standard hex dumps out there.
For example,
http://code.activestate.com/recipes/142812-hex-dumper/
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