A client/server application to get information about school
grades, aka Professor Raimundo, despite the low salary.
Raimundo is a client/server application responsible for grade operations. Despite the low salary, Raimundo makes his operations vápiti_vúpiti, so the communication between the client and the server is fast.
The communication is made by a Python lib called xmlrpc, in which we have both client and server sides. It's worth mentioning that this works just for Python3+, since the xmlrpc.client was included on Python3+, replacing the old xmlrpclib.
The system has a file, a csv one, in which the grades managed. For each grade, Raimundo creates a new row on this file, containing the student registration number, the subject and the grade itself.
The server has 4 functions, at first, related to the grading system: register_grade(), get_grade(), get_all_grades() and get_ac, where
register_grade(): the function, as the name suggests, registers a grade in the file. If the subject already has a registered grade, the function replaces the previous registered grade to the new one;get_grade(): receives the student registration number and a subbject and return the grade registered for that subject;get_all_grades(): as the function above, this ons also gets the registered grades from a student. However, it returns all registered grades for every student subject.;get_ac: last, but not least, the fucntion calculates the student's average coefficient and return to the client.
The client is quite simple: it counts with a terminal interface with some operations. Each operation is related to a server function:
{rg: register_grade(),
gg: get_grade(),
ga: get_all_grades(),
ac: get_ac()}In a terminal, we gotta run
~ python3 src/server.pyto start the server. A message like To shutdown the server, press CTRL + C should appear on the terminal window, indicating how to shut the server down.
Once the server is started, we gotta open a new terminal and type
~ python3 src/client.pyto start the client console. A message like
Bem-vindo ao sistema de notas 2000.
As possíveis operações são:
rg - cadastrar nota(matricula, disciplina, nota)
gg - bucar nota(matricula, disciplina)
ga - buscar notas(matricula)
ac - consultar cr(matricula)
is shown and we can already enter an input.
The input format is almost the same as the message, but without commas or parenthesis, as follows
rg 2021000000 distributed-systems 9.5
and the function register_grade() is called on server with 2021000000 as the student registration number, distributed-systems as the subject and 9.2 as the grade itself.
To get the grades from the same student, we gotta run
ga 2021000000