Golang Running Python Examples

Examples of golang running python scripts via exec.Command.

Apologies in advance for the bad code.

Silly Lessons Learned

1. stdin needs to be manually flushed on the python side

2. New lines need to be manually written to stdin to make sure the readline in python works.

Running

Navigate to the chosen example, and simply run go run main.go.

All examples require python3 on the executable PATH.

All webserver examples can be accessed by opening a webbrowswer, and navigating to http://localhost:12001/.

Examples

1-basic-command

This a simple example that demonstrates how to use golang to run python3, as well as consume its output.

2-command-arguments

This example implements a webservice wrapper around running a python script, passing webdata down into the python script via command-line arguments.

Python Requirements: tkinter

3-stdin-and-stdout

This example shows how one can communicate between python and golang, using standard in and out. A user can ask a question, and the question pops up in a long running python window. The user can then action on the window, and the response from the window is sent back to the original requesting webpage.

Python Requirements: tkinter

4-buffered-json-stdin

This example shows requests being buffered in golang, aggregated, and then submitted down into python via stdin to control a simple snake-clone.

Python Requirements: tkinter Pillow

Next Step Ideas

1. Package virtualenv within built golang executables using something like packr.

2. Implement a simple system for continuous deployment of cron jobs.