Setting up Beeware: I cannot create my JAR support file within my activated venv

Question

I've been trying to set up my work environment so I can attempt the Beeware tutorial. https://voc.readthedocs.io/en/latest/background/install.html
I'm following the steps of this installation tutorial using Bash Shell in Windows 8 with Python 3.7. I installed all the relevant software and configured the environmental variables etc.

The problem I encounter happens when I try to create the JAR support file inside my activated venv:

$ . env/Scripts/activate
(env) $ cd voc
(env) $ pip install -e .
(env) $ ant java ``` -- at this line of code the shell appears to be endlessly stuck in operation as follows:

(env) $ ant java
Buildfile: C:\Users\XXXX\tutorial\voc\build.xml

java:

compile:

compile_stdlib:
     [exec] Cloning into 'ouroboros'...
     [exec] Updating files:  17% (340/1941)

I've left this running for more than an hour and it shows no sign of progress.
I'm pretty sure that running the script through the venv is causing the problem because when I don't use any venv the process runs successfully in just over a minute.**

When I input the cd command, the processes don't appear to change over time either. I've also tried disabling my windows defender to improve CPU performance with no luck.

Any suggestions are what I can do to get this working in the Venv?

Thanks in advance

Answer 1

You might want to try with a different environment e.g. on a docker container.

Here is a report of a try with Ubuntu 18.04 LTS as of 2019-11-29. I followed https://voc.readthedocs.io/en/latest/background/install.html

Python 3.7 is used instead of the default 3.6.

python --version
Python 3.7.5

Java 1.8

javac -version
javac 1.8.0_25

ant as installed by Ubuntu package manager:

ant -version
Apache Ant(TM) version 1.10.5 compiled on March 28 2019

I had to install the python 3.7 venv see How to install python3.7 and create a virtualenv with pip on Ubuntu 18.04?

sudo apt-get install python3.7-venv

cloning the repository

git clone https://github.com/beeware/voc.git

activating the virtual environment

python3 -m venv env
$ . env/bin/activate
$ cd voc
$ pip install -e .

and now finally running the ant command that gave you trouble:

ant java
Buildfile: /hd/sengo/home/wf/source/python/beeware/voc/build.xml

java:

compile:
    [mkdir] Created dir: /hd/sengo/home/wf/source/python/beeware/voc/build/java
    [javac] Compiling 140 source files to /hd/sengo/home/wf/source/python/beeware/voc/build/java
    [javac] Note: Some input files use unchecked or unsafe operations.
    [javac] Note: Recompile with -Xlint:unchecked for details.

compile_stdlib:
     [exec] Cloning into 'ouroboros'...
     [exec] Cloning Ouroboros...
     [exec] Compiling 95 python modules...
     [exec] ...............................................................................................
     [exec] Built 95 modules

dist:
    [mkdir] Created dir: /hd/sengo/home/wf/source/python/beeware/voc/dist
      [jar] Building jar: /hd/sengo/home/wf/source/python/beeware/voc/dist/Python-3.7-Java-support.b7.jar
     [copy] Copying 1 file to /hd/sengo/home/wf/source/python/beeware/voc/dist

compile:

compile-testdaemon:
    [mkdir] Created dir: /hd/sengo/home/wf/source/python/beeware/voc/build/java-testdaemon
    [javac] Compiling 2 source files to /hd/sengo/home/wf/source/python/beeware/voc/build/java-testdaemon
    [javac] warning: [options] bootstrap class path not set in conjunction with -source 1.7
    [javac] 1 warning

dist-testdaemon:
      [jar] Building jar: /hd/sengo/home/wf/source/python/beeware/voc/dist/Python-3.7-Java-testdaemon.b7.jar
     [copy] Copying 1 file to /hd/sengo/home/wf/source/python/beeware/voc/dist

BUILD SUCCESSFUL
Total time: 56 seconds