Relativ to absolut import in python3 in new ptotobuf version 3.0.0

[aurelw]

This issue only concerns python3 generated code.

I have several message .pb files which i compile into python3 code. They all follow a package structure, "package myprotos.suba". There are several .pb files and corresponding modules, subBase, suba, subb. suba and subb import subBase. I now want to put all those generated python modules into one python package "myprotos". so i create "myprotos" directory, and add an empty init.py file.

Then in python code i should be able to do the following:

import myprotos
from myprotos import suba   # fails because suba is not in the path

However, this fails in the auto-generated module suba at the following statement:

import subBase

This is because python3 drops the support for these relative imports. A correctly generated code would look something like this:

import myprotos
from myprotos import subBase

Because the proto files already specifies package and subpackages it would be possible to generate an entire output directory with as a python package with working, cross-referencing imports.

[xdmiodz]

Hi,

Looks similar to #881

In your subb.proto you can import subBase.proto like:

#subb.proto
import 'myprotos/subBase.proto'

In this case the generated file will import subBase properly.

[anandolee]

See #1491 for discussion of relative imports