Re: pystl
Poul Riis wrote:
> I tried the following:
>
> from pystl import PySTL
> with PySTL('stl_test.stl') as stl:
> stl.add_triangle((0,0,0),(1,0,0),(0,1,0))
>
> I got the following error message:
>
> Traceback (most recent call last):
> File
>
"C:/Users/pr/AppData/Local/Programs/Python/Python35-32/Lib/idlelib/pystl_module_test_1.py",
> line 3, in
> with PySTL('stl_test.stl') as stl:
> File
> "c:\users\pr\appdata\local\continuum\anaconda3\lib\site-
packages\pystl\pystl.py",
> line 62, in __enter__
> self.write_stl_header()
> File
> "c:\users\pr\appdata\local\continuum\anaconda3\lib\site-
packages\pystl\pystl.py",
> line 75, in write_stl_header
> self.f.write(struct.pack("80s", header_str))
> struct.error: argument for 's' must be a bytes object
You can fix this particular error by replacing the line
header_str = ''
with
header_str = b''
in the write_stl_header() function which then becomes:
def write_stl_header(self):
if self.is_bin:
header_str = b''
self.f.write(struct.pack("80s", header_str))
self.write_num_triangles_bin()
else:
self.f.write('solid ' + self.model_name + '\n' )
As this kind of error indicates that the module is primarily used/tested in
Python 2 there may be other similar problems.
--
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Re: pystl
On Wednesday 17 August 2016 18:56, Poul Riis wrote:
> I tried the following:
>
> from pystl import PySTL
> with PySTL('stl_test.stl') as stl:
> stl.add_triangle((0,0,0),(1,0,0),(0,1,0))
>
> I got the following error message:
Ah, bad news I am afraid. That looks like a bug in pystl.
I don't think there is anything you can do about it except:
- make sure you have the most recent version of pystl;
- make sure that it supports the version of Python you are using;
- if so, report it as a bug to the pystl project.
>
> Traceback (most recent call last):
> File
>
"C:/Users/pr/AppData/Local/Programs/Python/Python35-32/Lib/idlelib/pystl_module_test_1.py",
> line 3, in
> with PySTL('stl_test.stl') as stl:
> File
> "c:\users\pr\appdata\local\continuum\anaconda3\lib\site-
packages\pystl\pystl.py",
> line 62, in __enter__
> self.write_stl_header()
> File
> "c:\users\pr\appdata\local\continuum\anaconda3\lib\site-
packages\pystl\pystl.py",
> line 75, in write_stl_header
> self.f.write(struct.pack("80s", header_str))
> struct.error: argument for 's' must be a bytes object
--
Steve
--
https://mail.python.org/mailman/listinfo/python-list
Re: pystl
I tried the following:
from pystl import PySTL
with PySTL('stl_test.stl') as stl:
stl.add_triangle((0,0,0),(1,0,0),(0,1,0))
I got the following error message:
Traceback (most recent call last):
File
"C:/Users/pr/AppData/Local/Programs/Python/Python35-32/Lib/idlelib/pystl_module_test_1.py",
line 3, in
with PySTL('stl_test.stl') as stl:
File
"c:\users\pr\appdata\local\continuum\anaconda3\lib\site-packages\pystl\pystl.py",
line 62, in __enter__
self.write_stl_header()
File
"c:\users\pr\appdata\local\continuum\anaconda3\lib\site-packages\pystl\pystl.py",
line 75, in write_stl_header
self.f.write(struct.pack("80s", header_str))
struct.error: argument for 's' must be a bytes object
Poul Riis
Den onsdag den 17. august 2016 kl. 08.49.29 UTC+2 skrev Steven D'Aprano:
> On Wednesday 17 August 2016 16:36, Poul Riis wrote:
>
> > Can someone deliver a minimal, fully working example with the pystl module,
> > https://pypi.python.org/pypi/pystl/
> >
> > The only example code mentioned is the following:
> >
> > with PySTL(‘stl_test.stl’) as stl:
> > stl.add_triangle( (0.0, 0.0, 0.5), (0.0, 1.0, 0.0), (1.0, 1.0, 0.5) )
> >
> >
> > but no matter what 'import'-statement I try I cannot make it work.
>
> Don't make us guess. What have you tried, and what happens when you do? Cut
> and
> paste the *actual* code you try, and the *actual* results.
>
> http://mattgemmell.com/what-have-you-tried/
>
> http://www.sscce.org/
>
>
> > I have installed the module and a program containing only the following line
> >
> > from pystl import PySTL
> >
> > runs without any error message.
>
> Great. Then try this:
>
> from pystl import PySTL
> with PySTL(‘stl_test.stl’) as stl:
> stl.add_triangle( (0.0, 0.0, 0.5), (0.0, 1.0, 0.0), (1.0, 1.0, 0.5) )
>
>
>
> If it doesn't work, what does it do?
>
>
>
> --
> Steve
--
https://mail.python.org/mailman/listinfo/python-list
Re: pystl
On Wednesday 17 August 2016 16:36, Poul Riis wrote: > Can someone deliver a minimal, fully working example with the pystl module, > https://pypi.python.org/pypi/pystl/ > > The only example code mentioned is the following: > > with PySTL(‘stl_test.stl’) as stl: > stl.add_triangle( (0.0, 0.0, 0.5), (0.0, 1.0, 0.0), (1.0, 1.0, 0.5) ) > > > but no matter what 'import'-statement I try I cannot make it work. Don't make us guess. What have you tried, and what happens when you do? Cut and paste the *actual* code you try, and the *actual* results. http://mattgemmell.com/what-have-you-tried/ http://www.sscce.org/ > I have installed the module and a program containing only the following line > > from pystl import PySTL > > runs without any error message. Great. Then try this: from pystl import PySTL with PySTL(‘stl_test.stl’) as stl: stl.add_triangle( (0.0, 0.0, 0.5), (0.0, 1.0, 0.0), (1.0, 1.0, 0.5) ) If it doesn't work, what does it do? -- Steve -- https://mail.python.org/mailman/listinfo/python-list
pystl
Can someone deliver a minimal, fully working example with the pystl module, https://pypi.python.org/pypi/pystl/ The only example code mentioned is the following: with PySTL(‘stl_test.stl’) as stl: stl.add_triangle( (0.0, 0.0, 0.5), (0.0, 1.0, 0.0), (1.0, 1.0, 0.5) ) but no matter what 'import'-statement I try I cannot make it work. I have installed the module and a program containing only the following line from pystl import PySTL runs without any error message. Poul Riis -- https://mail.python.org/mailman/listinfo/python-list
