paker 0.3.3

Serialize Python modules and packages

Paker

Paker is module for serializing and deserializing Python modules and packages. It was inspired by httpimporter.

How it works

Paker dumps entire package structure to JSON dict. When loading package back, package is recreated with its submodules and subpackages.

Installation

From PyPI

pip install paker

From source

git clone https://github.com/desty2k/paker.git
cd paker
pip install .

Usage

In these examples we will use paker to serialize mss package.

CLI

To dump module to JSON dict use dump command:

paker dump mss

To recreate module from JSON dict use load:

paker load mss.json

In Python script

import paker
import logging

file = "mss.json"
logging.basicConfig(level=logging.NOTSET)

# install mss using `pip install mss`
# serialize module
with open(file, "w+") as f:
    paker.dump("mss", f, indent=4)

# now you can uninstall mss using `pip uninstall mss -y`
# load package back from dump file
with open(file, "r") as f:
    loader = paker.load(f)

import mss
with mss.mss() as sct:
    sct.shot()

# remove loader and clean the cache
loader.unload()

# this will throw error
import mss

Bugs

Loading modules from .pyd files does not work.