[Fixed]-Coercing to Unicode: need string or buffer, function found on Django form

One of the things you’re including in that string concatenation is deploy. Since that isn’t defined within the current scope, Python will look for the nearest declaration of that name, which is the current function itself, hence the error.

I don’t know where that name is actually supposed to be defined, but you should probably do it within your function; and, in any case, you will need to rename either the variable or the function.