visual indentation
achrist at easystreet.com
achrist at easystreet.com
Fri Aug 22 14:28:27 EDT 2003
Hilbert wrote:
>
> Hello,
>
> I'm using python to output RIB streams for Renderman.
> The RIB stream is a bunch of statements which describes
> a 3d image. The Rib standard allows for blocks which we
> usually indent for better visualization for example:
>
> WorldBegin
> Color [1 1 1]
> Surface "constant"
> Sphere(1.0, -1.0, 1.0, 360)
> WorldEnd
>
> I'm using CGKit in python which has a Renderman binding,
> so to output the same RIB I'd write:
>
> RiWorldBegin()
> RiColor(1.0,1.0,1.0)
> RiSurface('constant')
> RiSphere(1.0,-1.0,1.0,360)
> RiWorldEnd()
>
> But I get an error, because python interprets my indentation
> as a block in the python code. So the only way to write this
> is without the indentation:
>
> RiWorldBegin()
> RiColor(1.0,1.0,1.0)
> RiSurface('constant')
> RiSphere(1.0,-1.0,1.0,360)
> RiWorldEnd()
>
> But this is a lot harder to read.
>
> Is there any way to use such "visual" indentation in python?
>
If the code is purely sequential, how about something like this:
import string
def RunTheseStatements(s):
stmts = map(string.strip, s.split("\n"))
for stmt in stmts:
eval(stmt)
RunTheseStatements("""
RiWorldBegin()
RiColor(1.0,1.0,1.0)
RiSurface('constant')
RiSphere(1.0,-1.0,1.0,360)
RiWorldEnd()
""")
Al
More information about the Python-list
mailing list