ValueError: Invalid Placeholder In String

I tried to make my own template for mutate_model.py script (http://salilab.org/modeller/wiki/Mutate%20model) by using python string template where I substituted values for these fi

Solution 1:

It's erroring because you have an invalid template identifier in your string

env.libs.parameters.read(file='$(LIB)/par.lib')   # Notice the $(LIB)

From the docs

$$ is an escape; it is replaced with a single $.

Any other appearance of $ in the string will result in a ValueError being raised.

You would need to use

$$(LIB)

Also, your variable case doesn't match

mdl1.write(file=$modelname+$restyp1+$respos1+$chain+'.tmp')#change

But you're passing in resType1 and resPos1. You need to pass in restype1 and respos1