[PyMOL] python for loop with pymol command usage

Dear user-group,

  I'm trying to learn how to use python commands inside pymol .pml
scripts.  I seem to be missing some understanding about how the
interface works.  Could somebody tell me how to fix this command below?

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PyMOL>for x in range(10): cmd.label("(name ca and resi %d)" % x, "%s%s"=20

PyMOL>% (resi, resn))

Traceback (most recent call last):

  File "/usr/local/pymol/modules/pymol/parser.py", line 232, in parse

    exec(com2[nest]+"\n",pymol_names,pymol_names)

  File "<string>", line 1, in ?

NameError: name 'resi' is not defined

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thanks much!!

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-Louis

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Louis Clark, Ph.D.

lou...@co... <mailto:lou...@co...>=20

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