rocky/python-uncompyle6

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A cross-version Python bytecode decompiler

Stars: 4.3k
Forks: 463
Open beginner issues: 0
Indexed issues: 37

Dominant language: Python
License: GPL-3.0
Last GitHub push: Apr 24, 2026
Latest indexed: Sep 21, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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Decompiled wrong result with simple if statements Open

Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#506 · 1 comment · Opened Nov 13, 2024
List comprehensions inside of a lambda print only `[` Open

Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#492 · 4 comments · Opened Mar 19, 2024
Redundant "else:" Open

Control Flow Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rocky/python-uncompyle6#486 · Opened Mar 5, 2024
Missing "While True" Open

Control Flow Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 45/100

rocky/python-uncompyle6#485 · 4 comments · Opened Mar 5, 2024
Request for uncompyle6 to support newer versions of python. Open

Duplicate Python 3.9+

Difficulty 5/5 Over a week Newbie friendliness 25/100

rocky/python-uncompyle6#484 · 9 reactions · Opened Feb 22, 2024
Double return is printed Open

Bug Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 3/5 1-2 days Newbie friendliness 42/100

rocky/python-uncompyle6#459 · 3 comments · Opened May 31, 2023
Go over code to all it to run on Python 3.11 Open

Python 3.11 Python 3.9+ Volunteer wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#423 · 2 comments · Opened Nov 12, 2022
Parse error at or near `JUMP_FORWARD' instruction Open

Control Flow Overly large bytecode Python 3.6

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#420 · 4 comments · Opened Nov 6, 2022
Parse error at or near `JUMP_BACK' instruction Open

parse Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rocky/python-uncompyle6#403 · 3 comments · Opened Jun 16, 2022
Footnote in markdown wiki entry is not rendered properly Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rocky/python-uncompyle6#386 · 2 comments · 2 reactions · Opened Feb 28, 2022
`return` in Python 3.8 in `try` ... `except` Open

Python 3.8 Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#369 · 11 comments · Opened Nov 30, 2021
3.9 please :3 Open

Duplicate Python 3.9+ Volunteer wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

rocky/python-uncompyle6#353 · 8 comments · Opened Jun 21, 2021
Error of "if if else" expr sequence Open

Control Flow Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#351 · 2 comments · Opened Jun 15, 2021
Please add python3.9 and above to uncompyle6 Open

Python 3.9+ Volunteer wanted

Difficulty 5/5 Over a week Newbie friendliness 20/100

rocky/python-uncompyle6#331 · 23 comments · Opened Oct 10, 2020
IndexError: tuple index out of range Open

Invalid Bytecode Questionable Activity

Difficulty 4/5 3-5 days Newbie friendliness 28/100

rocky/python-uncompyle6#329 · 1 comment · Opened Sep 24, 2020
[bug] while not x and not y or z: Open

Control Flow Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rocky/python-uncompyle6#326 · Opened Aug 22, 2020
Error with break inside nested for loop Open

Control Flow Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#323 · 1 comment · Opened Jun 29, 2020
Error when decompiling loop inside if-else Open

Control Flow Python 3.7 Volunteer wanted Works on decompyle3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rocky/python-uncompyle6#322 · 3 comments · Opened Jun 28, 2020
"if else" condition generates "uncompyle6.semantics.pysource.SourceWalkerError: Deparsing stopped due to parse error" Open

Control Flow Python 3.7 Volunteer wanted Works on decompyle3

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rocky/python-uncompyle6#321 · 6 comments · Opened Jun 16, 2020
Slow processing on large Python 3.4 bytecode with lots of nesting Open

Control Flow Python 3.x Volunteer wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#318 · 4 comments · Opened May 31, 2020
Problem with assert testing two ranges Open

Boolean Expressions Control Flow Python 3.7 Python 3.8 Volunteer wanted Works on decompyle3

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rocky/python-uncompyle6#317 · 2 comments · Opened May 31, 2020
Unable to decompile Python 3.8 (PyInstaller on Windows created) bytecode Open

Control Flow EXTENDED_ARG Python 3.8 Volunteer wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#316 · 1 comment · Opened May 27, 2020
Merge decompyle3's 3.7 and 3.8 goodness into uncompyle6 Open

Volunteer wanted

rocky/python-uncompyle6#307 · 13 comments · 1 assignee · Opened Feb 22, 2020
Deparsing errors on JUMP_ABSOLUTE Open

Python 2.7 Questionable Activity

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#292 · 2 comments · Opened Oct 23, 2019
Python 3.7 decompiling full 3.7.3 library without error Open

Epic

rocky/python-uncompyle6#235 · 12 comments · 1 assignee · Opened May 13, 2019
Deparsing stopped due to parse error Open

Control Flow Python 3.6 Questionable Activity

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rocky/python-uncompyle6#198 · 3 comments · Opened Dec 14, 2018
Add methods to decompile "eval" code objects Open

Enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rocky/python-uncompyle6#190 · 1 comment · Opened Sep 19, 2018
DRY Scanner conversion to instructions function Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#168 · Opened Apr 1, 2018
syntax specifiers `%C` and `%P` should take into account line-table line breaks Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#167 · Opened Apr 1, 2018
Any way to have line numbers match the py file? Open

Enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

rocky/python-uncompyle6#133 · 5 comments · Opened Oct 24, 2017
Add proper control-flow analysis Open

code refactor Control Flow

Difficulty 5/5 Over a week Newbie friendliness 20/100

rocky/python-uncompyle6#115 · 2 comments · Opened May 7, 2017
Turn "continue" into "pass" based on line number information Open

code refactor Control Flow Enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

rocky/python-uncompyle6#114 · 1 comment · Opened May 7, 2017
More precise line breaks Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#76 · Opened Jan 7, 2017
Handling pathological Python programs with thousands statements in a block - RuntimeError: maximum recursion depth exceeded in cmp Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rocky/python-uncompyle6#70 · 2 comments · Opened Nov 29, 2016
Handle line breaks in fragments parser Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rocky/python-uncompyle6#64 · Opened Nov 8, 2016
verification should look for other python versions Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rocky/python-uncompyle6#50 · Opened Sep 4, 2016
Go over grammar for why there are duplicate (more) reductions. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rocky/python-uncompyle6#26 · Opened Jun 1, 2016

rocky/python-uncompyle6

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