gonzlobo wrote:
> I've been using Python for a few days. It's such the perfect language
> for parsing data!
>
> I really like it so far, but I'm having a hard time reading a file,
> reading the first few hex characters & converting them to an integer.
> Once the characters are converted to an integer, I'd like to write the
> data to another file.
>
> Here's the code snipped to the bare minimum:
> ---
> # Open File
> AP_File= open("AP.txt", "r")
> decoded_File= open("decoded.txt", "w")
>
> # read & process data line by line
> for line in AP_File:
> time = int(hex(line[0:8]), 16) * 0.0001 # this line is completely
> hosed!
> decodedFile.write(time)
>
> #close files
> AP_File.close()
> decoded_File.close()
> ---
> AP.txt
> 000000d5 26 0600 80 00 ec 80 02 03 7d db 02 33
> 000000d5 26 0601 80 00 80 00 02 37 fe 54 01 09
> 000000d5 06 0602 80 00 e0 00 01 29 fe d2 69 99
> 000000d5 06 0603 80 00 e0 00 02 29 fe d2 6a 99
> 000000d5 26 0604 80 00 fe 54 02 09 80 00 01 5d
> 000000d5 06 0605 80 00 e0 00 02 15 fc 71 ca 0b
> 000000d5 4a 0610 81 00 86 00 02 26 12 00 02 a6
> 000000d5 4f 0611 00 00 00 50 00 00 00 00 07 00
> 000000d5 06 0612 80 00 e0 00 01 15 fc 71 c9 0b
> 000000d5 0a 0613 08 5c 04 88 08 98 00 00 00 00
> 000000d5 06 0614 80 00 e0 00 02 01 60 79 82 2b
> 000000d5 0a 0615 08 00 00 00 00 00 00 00 00 00
> 000000d5 26 0616 80 00 80 00 02 5d 04 22 3a 88
> (actual files are 250MB!)
>
> decodedTime.txt (should be)
> 0.0213 26 0600 80 00 ec 80 02 03 7d db 02 33
> ...
>
> My boss and I are trying to complete the same task (he figured out how
> to do it, but his code uses a while != "" loop and doesn't look
> pythony (it looks too 'c'). Not that there's anything wrong with that!
>
> Any help is really appreciated.
Use the built-in int(). It has an optional argument "radix" which
specifies the base for the conversion. For example:
>>> int("0x0A", 16)
>>> 10
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