Python　Constraint Programming Manual

What is constraint description using Python3? It is a mechanism to describe constraints in a language (Python3) instead of GUI.

Here is a description of the three tabbed screens.

This is a note on all descriptions, not just the staff property sheet.

import sc3 Any statement can be used to reference a set defined in the GUI, but the statement must match the Python syntax.

print('Hello Python3 Constraint World!\n') The output from the Python print statement appears in the right pane of the Solve page, as shown above.

import sc3 for day in AllDays: sc3.print('\t\tDay index'+str(day)+' is '+daydef[day]+'.

Above is the solution according to the source below. The constraint is to assign a paid holiday on Monday.

In Python Tutorial 3, we will look at how to write the And operation, which is exactly the same constraint in three different ways: since it is an And operation, the constraint is that all elements (2th, 9th, 15th, 23th, 30th) are Paid holidays.

In Python Tutorial 4, we will look at how the Or operation is written: there are three ways to do the Or operation, but they are exactly the same constraints.

In Python Tutorial 5, we will look at how to write And, Or, and Not operations.

In Python Tutorial 6, we constrain using a dedicated inequality constraint function.

This is a summary example of what we have done so far.

This project is a soft constrained “Python Tutorial 5”(../chapter10).

It is the exact specification in Python Tutorial 7 , but soft inequality constraints are used.

Python code is the same sa Python Tutorial 8 , but soft constrained scheduling entries are different.

SeqComp is used to realize a substitution rest, always in combination with sc3.

SoftSeqComp is an extension of SeqComp to soft constraints, always used in combination with sc3.

A staff property that consists only of numbers can be retrieved as a Python Dictionary.

It reads the scheduled shift and outputs an error. The error in the scheduled shift is detected and the error can be displayed before going to the constraint engine.

sc3.SeqExpr(min,max,Type,List) ■ SeqExpr is a constraint function that returns the result of SeqLE in 1 bit.

sc3.GetTaskVar(person,day,phase,task name) is the format. It is the phase task mode version of GetShiftVar.

■In addition to debugging by print statement, debugging by debugger is available.

■pywin32.nurse3 is a sample. ■The Excel processing system called pywin32 is incorporated.

■Post-processing is useful for shaping the solution after it has been generated.