couldn't convert binary stl file to ascii stl file

[DezzardHD]

Hey,
I tried to convert a binary stl file to ascii stl file, but I received an error message stating, that in some line it wasn't possible to resolve the binary part to an ascii symbol.
If you want to look into that problem, I can send you the stl file I am talking about.

The terminal output:
File "C:\Users\myname\Documents\Eclipse Workspace\STL_Converter\binary-stl-toASCII\BinaryToASCII.py", line 7, in
data = infile.read()
File "C:\Program Files\Python39\lib\encodings\cp1252.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x8f in position 335: character maps to

C:\Users\myname\Documents\Eclipse Workspace\STL_Converter\binary-stl-toASCII>

Best regards
Dezzard

[FireWingHu]

Hi!
I have the same problem:

Traceback (most recent call last):
File "C:\D\arduino\projects\cnc\binary-stl-toASCII-6f4e46c21ad33b19d0b99a6e1b40003e45ac8f0b\BinaryToASCII.py", line 7, in
data = infile.read()
File "C:\Users\FireWing\AppData\Local\Programs\Python\Python39\lib\encodings\cp1250.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x88 in position 472: character maps to undefined

[DezzardHD]

Hi!
I have the same problem:

Traceback (most recent call last):
File "C:\D\arduino\projects\cnc\binary-stl-toASCII-6f4e46c21ad33b19d0b99a6e1b40003e45ac8f0b\BinaryToASCII.py", line 7, in
data = infile.read()
File "C:\Users\FireWing\AppData\Local\Programs\Python\Python39\lib\encodings\cp1250.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
UnicodeDecodeError: 'charmap' codec can't decode byte 0x88 in position 472: character maps to undefined

Hi!
I wasn't able to fix the code. Sorry.
Have a nice day!

[FireWingHu]

Ok, no problem, modifying this line:

infile = open('binary.stl') #import file

to this:

infile = open('binary.stl', encoding="utf8") #import file

has solved the problem for me. :)

[alwarnecke]

If @FireWingHu's method did not work for you, you can also try explicitly opening the file as read-only and binary, as follows:

infile = open('binary.stl', 'rb') #import file

[rishabh-shukla07]

im getting an xrange not defined error, someone please help

[rishabh-shukla07]

If @FireWingHu's method did not work for you, you can also try explicitly opening the file as read-only and binary, as follows:

infile = open('binary.stl', 'rb') #import file

I did this and it stopped the other errors