Skip to main content

Byte-code and ast programming tools

Project description

Meta

A Pure Python module containing a framework to manipulate and analyze python abstract syntax trees and bytecode.

Example

This shows how to take python source to a code object and back again from within python:

import meta, ast
source = '''
a = 1
b = 2
c = (a ** b)
'''

mod = ast.parse(source, '<nofile>', 'exec')
code = compile(mod, '<nofile>', 'exec')

mod2 = meta.decompile(code)
source2 = meta.dump_python_source(mod2)

assert source == source2

This shows the depyc script. The script compiles itself, and then the compiled script extracts itself:

DEPYC_FILE=`python -c"import meta.scripts.depyc; print meta.scripts.depyc.__file__"`
depyc $DEPYC_FILE --pyc > depycX.pyc
python -m depycX depycX.pyc --python > depycX.py
echo depycX.py

Notes

  • Meta is python3 compliant (mostly)

Bugs

  • The decompliler does not yet support complex list/set/dict - comprehensions

Testing

python -m unittest discover meta

test

Versioning

From the version 1.0.0, Meta follows Semantic Versioning. The version X.Y.Z indicates:

  • X is the major version (backward-incompatible),
  • Y is the minor version (backward-compatible), and
  • Z is the patch version (backward-compatible bug fix).

Prior to version 1.0.0, custom versioning scheme was used.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for meta, version 1.0.2
Filename, size File type Python version Upload date Hashes
Filename, size meta-1.0.2.tar.gz (49.3 kB) File type Source Python version None Upload date Hashes View

Supported by

AWS AWS Cloud computing Datadog Datadog Monitoring Facebook / Instagram Facebook / Instagram PSF Sponsor Fastly Fastly CDN Google Google Object Storage and Download Analytics Huawei Huawei PSF Sponsor Microsoft Microsoft PSF Sponsor NVIDIA NVIDIA PSF Sponsor Pingdom Pingdom Monitoring Salesforce Salesforce PSF Sponsor Sentry Sentry Error logging StatusPage StatusPage Status page