.builds/debian.yml

@@ -0,0 +1,42 @@
+image: debian/bullseye
+sources:
+  - https://git.sr.ht/~cedric/stegano
+packages:
+  - python3
+  - python3-dev
+  - python3-pip
+  - python3-setuptools
+  - python3-venv
+  - rustc
+  - cargo
+  - libffi-dev
+  - libssl-dev
+  - libjpeg-dev
+  - libpng-dev
+  - libfreetype6-dev
+  - ffmpeg
+  - libsm6
+  - libxext6
+environment:
+  project: stegano
+tasks:
+  - dependencies: |
+      pip3 install --user poetry
+      export PATH="$PATH:/home/build/.local/bin"
+      cd ${project}
+      poetry install
+  - lint: |
+      export PATH="$PATH:/home/build/.local/bin"
+      cd ${project}
+      # stop the build if there are Python syntax errors or undefined names
+      poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+      # exit-zero treats all errors as warnings.
+      poetry run flake8 . --count --max-complexity=10 --max-line-length=127 --statistics
+  - test: |
+      export PATH="$PATH:/home/build/.local/bin"
+      cd ${project}
+      poetry run nose2 -v --pretty-assert
+  - typecheck: |
+      export PATH="$PATH:/home/build/.local/bin"
+      cd ${project}
+      poetry run mypy .

.github/workflows/pythonapp.yaml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ["3.10", "3.11", "3.12"]
+        python-version: [3.8, 3.9, 3.10.2]
 
     steps:
     - uses: actions/checkout@v1
@@ -22,14 +22,14 @@ jobs:
     - name: Install dependencies
       run: |
         pip install poetry
-        poetry install --with dev
+        poetry install
 
     - name: Lint with flake8
       run: |
         # stop the build if there are Python syntax errors or undefined names
-        poetry run flake8 stegano --count --select=E9,F63,F7,F82 --show-source --statistics
+        poetry run flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        poetry run flake8 stegano --count --max-complexity=15 --max-line-length=127 --statistics
+        poetry run flake8 . --count --max-complexity=15 --max-line-length=127 --statistics
 
     - name: Test with pytest
       run: |
@@ -37,6 +37,6 @@ jobs:
       env:
         testing: actions
 
-    # - name: Type check with mypy
+    - name: Type check with mypy
-    #   run: |
+      run: |
-    #     poetry run mypy .
+        poetry run mypy .

.github/workflows/release.yml

@@ -1,27 +0,0 @@
-on:
-  release:
-    types:
-      - published
-
-name: release
-
-jobs:
-  pypi-publish:
-    name: Upload release to PyPI
-    runs-on: ubuntu-latest
-    environment:
-      name: pypi
-      url: https://pypi.org/p/Stegano
-
-    permissions:
-      id-token: write  # IMPORTANT: this permission is mandatory for trusted publishing
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          fetch-depth: 0
-      - name: Install Poetry
-        run: python -m pip install --upgrade pip poetry
-      - name: Build artifacts
-        run: poetry build
-      - name: Publish package distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1

.pre-commit-config.yaml

@@ -1,36 +0,0 @@
-ci:
-  autoupdate_schedule: monthly
-repos:
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.3.1
-    hooks:
-      - id: pyupgrade
-        args: ["--py37-plus"]
-  - repo: https://github.com/PyCQA/isort
-    rev: 5.12.0
-    hooks:
-      - id: isort
-  - repo: https://github.com/psf/black
-    rev: 22.3.0
-    hooks:
-      - id: black
-  - repo: https://github.com/PyCQA/flake8
-    rev: 6.1.0
-    hooks:
-      - id: flake8
-        additional_dependencies:
-          - flake8-bugbear
-          - flake8-implicit-str-concat
-        args: ["--max-line-length=125"]
-  - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.1.0
-    hooks:
-      - id: fix-byte-order-marker
-      - id: trailing-whitespace
-        exclude: .md
-      - id: end-of-file-fixer
-        exclude: tests/.*
-  - repo: https://github.com/pypa/pip-audit
-    rev: v2.7.3
-    hooks:
-      -   id: pip-audit

.readthedocs.yaml

@@ -1,22 +0,0 @@
-# .readthedocs.yaml
-# Read the Docs configuration file
-# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
-
-# Required
-version: 2
-
-# Set the version of Python and other tools you might need
-build:
-  os: ubuntu-22.04
-  tools:
-    python: "3.11"
-
-# Build documentation in the docs/ directory with Sphinx
-sphinx:
-  configuration: docs/conf.py
-
-# We recommend specifying your dependencies to enable reproducible builds:
-# https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
-python:
-  install:
-  - requirements: docs/requirements.txt

CHANGELOG.md

@@ -1,251 +1,216 @@
 ## Release History
 
-### 1.0.1 (2025-05-03)
-
-- Improved the packaging configuration for the command line (stegano.console).
-
-
-### 1.0.0 (2025-04-26)
-
-- Updated dependencies.
-- Improved the packaging configuration.
-- Fixed typing errors.
-
-
-### 0.11.5 (2025-02-13)
-
-- Updated dependencies.
-- Aligned pyproject.toml with the standard specification.
-- Publishing to PyPI using a Trusted Publisher.
-
-
-### 0.11.4 (2024-09-07)
-
-- Added a parameter, close_file, to lsb.reveal in order to
-  specify if the file must be closed at the end of the processing.
-
-
-### 0.11.3 (2024-01-02)
-
-- Stegano now supports Python 3.12. Support of Python 3.8 has been removed.
-
-
-### 0.11.2 (2023-05-23)
-
-- improved typing of various functions;
-- updated dependencies.
-
 
 ### 0.11.1 (2022-11-20)
 
-- Fixed a bug in the command line when no sub-command is specified.
+* Fixed a bug in the command line when no sub-command is specified.
 
 
 ### 0.11.0 (2022-11-20)
 
-- Reduced memory footprint and processing speed,
+* Reduced memory footprint and processing speed,
   the modules ``lsb`` and ``lsbset`` have been merged
   ([PR #34](https://github.com/cedricbonhomme/Stegano/pull/34)).
 
 
 ### 0.10.2 (2022-01-13)
 
-- Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
+* Stegano now uses Pillow 9.0.0 (CVE-2022-22815).
 
 
 ### 0.10.1 (2021-11-30)
 
-- Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
+* Stegano now uses OpenCV Python 4.5.4 abd Numpy 1.21.4.
 
 
 ### 0.10.0 (2021-11-29)
 
-- new: Implemented Shi-Tomashi corner generator
+* new: Implemented Shi-Tomashi corner generator
   ([PR #32](https://github.com/cedricbonhomme/Stegano/pull/32)).
   Implemented by thundersparkf (see CONTRIBUTORS.md file).
 
 
 ### 0.9.9 (2021-07-02)
 
-- Stegano now uses Pillow 8.3.0.
+* Stegano now uses Pillow 8.3.0.
 
 
 ### 0.9.8 (2019-12-20)
 
-- Stegano is now using poetry;
+* Stegano is now using poetry;
-- minor improvements to the command line.
+* minor improvements to the command line.
 
 
 ### 0.9.7 (2019-10-27)
 
-- fixed markdown of the previous release.
+* fixed markdown of the previous release.
 
 
 ### 0.9.6 (2019-10-27)
 
-- fixed markdown of the previous release;
+* fixed markdown of the previous release;
 
 
 ### 0.9.5 (2019-10-27)
 
-- updated dependencies;
+* updated dependencies;
-- home page of the project is now: https://github.com/cedricbonhomme/Stegano
+* home page of the project is now: https://git.sr.ht/~cedric/Stegano
 
 
 ### 0.9.4 (2019-06-05)
 
-- new: Implemented LFSR generator (with tests and CLI)
+* new: Implemented LFSR generator (with tests and CLI)
   ([PR #27](https://github.com/cedricbonhomme/Stegano/pull/27))
-- new: Implemented Ackermann generators CLI interface
+* new: Implemented Ackermann generators CLI interface
   ([PR #26](https://github.com/cedricbonhomme/Stegano/pull/26))
-- new: The Ackermann functions are not actual generators
+* new: The Ackermann functions are not actual generators
   ([#24](https://github.com/cedricbonhomme/Stegano/issues/24))
-- new: add a shift parameter for the lsbmodule
+* new: add a shift parameter for the lsbmodule
   ([#25](https://github.com/cedricbonhomme/Stegano/issues/25))
-- fix: lsbset.hide cause .png transparent area lost
+* fix: lsbset.hide cause .png transparent area lost
   ([#23](https://github.com/cedricbonhomme/Stegano/issues/23))
 
 
 ### 0.9.3 (2019-04-10)
 
-- it is now possible to either pass the location of an image or directly pass
+* it is now possible to either pass the location of an image or directly pass
   an already opened Image.Image to the hide and reveal methods;
-- code re-formatted a bit with black.
+* code re-formatted a bit with black.
 
 
 ### 0.9.2 (2019-04-04)
 
-- updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
+* updated Pillow dependency to version 6.0.0 in order to fix a bug when opening
   some PNG files (https://github.com/python-pillow/Pillow/issues/3557).
 
 
 ### 0.9.1 (2019-03-06)
 
-- updated Pillow dependency in order to fix a bug when opening some PNG files.
+* updated Pillow dependency in order to fix a bug when opening some PNG files.
 
 
 ### 0.9.0 (2018-12-18)
 
-- added the possibility to shift the encoded bits when using the lsbset module.
+* added the possibility to shift the encoded bits when using the lsbset module.
 
 
 ### 0.8.6 (2018-11-05)
 
-- fixed a potential security issue related to CVE-2018-18074.
+* fixed a potential security issue related to CVE-2018-18074.
 
 
 ### 0.8.5 (2018-04-18)
 
-- Fixed an encoding problem which occured on Windows during the installation
+* Fixed an encoding problem which occured on Windows during the installation
   of the module.
 
 
 ### 0.8.4 (2018-02-28)
 
-- Stegano is ready for use with pipenv and pipsi.
+* Stegano is ready for use with pipenv and pipsi.
 
 
 ### 0.8.3 (2018-02-23)
 
-- the recommended way to install Stegano is now to use pipenv.
+* the recommended way to install Stegano is now to use pipenv.
 
 
 ### 0.8.2 (2017-12-20)
 
-- Fixed a bug with the new 'encoding' function when using Stegano as a command
+* Fixed a bug with the new 'encoding' function when using Stegano as a command
   line tool. No default value was set. Default value is UTF-8.
 
 
 ### 0.8.1 (2017-05-16)
 
-- it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
+* it is now possible to specify the encoding (UTF-8 or UTF-32LE) of the message
   to hide/reveal through the command line;
-- the help of the command line now displays the available choices for the
+* the help of the command line now displays the available choices for the
   arguments, if it is necessary (list of available encodings, list of available
   generators);
-- tests expected results lies now in a dedicated folder;
+* tests expected results lies now in a dedicated folder;
-- a script has been added in order to get proper exit code check for mypy.
+* a script has been added in order to get proper exit code check for mypy.
 
 
 ### 0.8 (2017-05-06)
 
-- updated command line. All commands are now prefixed with *stegano-*;
+* updated command line. All commands are now prefixed with *stegano-*;
-- improved type hints;
+* improved type hints;
-- it is possible to load and save images from and to file objects (BytesIO);
+* it is possible to load and save images from and to file objects (BytesIO);
-- improved checks when revealing a message with the lsbset module fails.
+* improved checks when revealing a message with the lsbset module fails.
 
 
 ### 0.7.1 (2017-05-05)
 
-- improved generators for the lsb-set module;
+* improved generators for the lsb-set module;
-- improved tests for the generators;
+* improved tests for the generators;
-- improved type hints.
+* improved type hints.
 
 
 ### 0.7 (2017-05-04)
 
-- unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
+* unicode is now supported. By default UTF-8 encoding is used. UTF-32LE can also
   be used to hide non-ASCII characters. UTF-8 (8 bits) is the default choice
   since it is possible to hide longer messages with it.
-- improved checks with type hints.
+* improved checks with type hints.
 
 
 ### 0.6.9 (2017-03-10)
 
-- introduces some type hints (PEP 484);
+* introduces some type hints (PEP 484);
-- more tests for the generators and for the tools module;
+* more tests for the generators and for the tools module;
-- updated descriptions of generators;
+* updated descriptions of generators;
-- fixed a bug with a generator that has been previously renamed.
+* fixed a bug with a generator that has been previously renamed.
 
 
 ### 0.6.8 (2017-03-08)
 
-- bugfix: fixed #12: Error when revealing a hidden binary file in an image.
+* bugfix: fixed #12: Error when revealing a hidden binary file in an image.
 
 
 ### 0.6.7 (2017-02-21)
 
-- bugfix: added missing dependency in the setup.py file.
+* bugfix: added missing dependency in the setup.py file.
 
 
 ### 0.6.6 (2017-02-20)
 
-- improved docstrings for the desciption of the generators;
+* improved docstrings for the desciption of the generators;
-- improved the command which displays the list of generators.
+* improved the command which displays the list of generators.
 
 
 ### 0.6.5 (2017-02-16)
 
-- added a command to list all available generators for the lsb-set module;
+* added a command to list all available generators for the lsb-set module;
-- test when the data image is coming via byte stream, for the lsb module.
+* test when the data image is coming via byte stream, for the lsb module.
 
 
 ### 0.6.4 (2017-02-06)
 
-- a command line for the 'red' module has been added;
+* a command line for the 'red' module has been added;
-- bugfix: fixed a bug in the lsb-set command line when the generator wasn't
+* bugfix: fixed a bug in the lsb-set command line when the generator wasn't
   specified by the user.
 
 
 ### 0.6.3 (2017-01-29)
 
-- Support for transparent PNG images has been added (lsb and lsbset modules).
+* Support for transparent PNG images has been added (lsb and lsbset modules).
 
 
 ### 0.6.2 (2017-01-19)
 
-- bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
+* bugfix: solved a bug when the image data is coming via byte streams (ByteIO),
   for the exifHeader hiding method.
 
 
 ### 0.6.1 (2016-08-25)
 
-- reorganization of the steganalysis sub-module.
+* reorganization of the steganalysis sub-module.
 
 
 ### 0.6 (2016-08-04)
 
-- improvements of the command line of Stéganô. The use of Stéganô through the
+* improvements of the command line of Stéganô. The use of Stéganô through the
   command line has slightly changed ('hide' and 'reveal' are now sub-parameters
   of the command line). No changes if you use Stéganô as a module in your
   software. The documentation has been updated accordingly.
@@ -253,66 +218,66 @@
 
 ### 0.5.5 (2016-08-03)
 
-- bugfix: Incorrect padding size in `base642string` in tools.base642binary().
+* bugfix: Incorrect padding size in `base642string` in tools.base642binary().
 
 
 ### 0.5.4 (2016-05-22)
 
-- the generator provided to the functions lsbset.hide() and lsbset.reveal() is
+* the generator provided to the functions lsbset.hide() and lsbset.reveal() is
   now a function. This is more convenient for a user who wants to use a custom
   generator (not in the module lsbset.generators).
-- performance improvements for the lsb and lsbset modules.
+* performance improvements for the lsb and lsbset modules.
 
 
 ### 0.5.3 (2016-05-19)
 
-- reorganization of all modules. No impact for the users of Stegano.
+* reorganization of all modules. No impact for the users of Stegano.
 
 
 ### 0.5.2 (2016-05-18)
 
-- improvements and bug fixes for the exifHeader module;
+* improvements and bug fixes for the exifHeader module;
-- added unit tests for the exifHeader module;
+* added unit tests for the exifHeader module;
-- improvements of the documentation.
+* improvements of the documentation.
 
 
 ### 0.5.1 (2016-04-16)
 
-- minor improvements and bug fixes;
+* minor improvements and bug fixes;
-- added unit tests for the slsb and slsbset modules.
+* added unit tests for the slsb and slsbset modules.
 
 
 ### 0.5 (2016-03-18)
 
-- management of greyscale images.
+* management of greyscale images.
 
 
 ### 0.4.6 (2016-03-12)
 
-- bugfix when the length of the message to hide is not divisible by 3,
+* bugfix when the length of the message to hide is not divisible by 3,
   for the slsb and slsbset module.
 
 
 ### 0.4.5 (2015-12-23)
 
-- bugfix.
+* bugfix.
 
 
 ### 0.4.4 (2015-12-23)
 
-- new project home page;
+* new project home page;
-- minor updated to the documentation.
+* minor updated to the documentation.
 
 
 ### 0.4.3 (2015-10-06)
 
-- bug fixes for Python 3;
+* bug fixes for Python 3;
-- bug fixes in the scripts in *./bin*.
+* bug fixes in the scripts in *./bin*.
 
 
 ### 0.4.2 (2015-10-05)
 
-- first stable release on PypI.
+* first stable release on PypI.
 
 
 ### 0.4 (2012-01-02)
@@ -326,16 +291,16 @@ Python codes as a Python module or as a program in your scripts.
 
 ### 0.3 (2011-04-15)
 
-- you can now use Stéganô as a library in your Python program;
+* you can now use Stéganô as a library in your Python program;
   (python setup.py install) or as a 'program' thanks to the scripts provided
   in the bin directory;
-- new documentation (reStructuredText) comes with Stéganô.
+* new documentation (reStructuredText) comes with Stéganô.
 
 
 ### 0.2 (2011-03-24)
 
-- this release introduces some bugfixes and a major speed improvement of the
+* this release introduces some bugfixes and a major speed improvement of the
   *reveal* function for the LSB method. Moreover it is now possible to hide a
   binary file (ogg, executable, etc.);
-- a new technique for hiding/revealing a message in a JPEG picture by using the
+* a new technique for hiding/revealing a message in a JPEG picture by using the
   description field of the image is provided.

CONTRIBUTORS.md

@@ -16,6 +16,5 @@
 - panni <panni@fragstore.net>
 - Peter Justin <peter@peterjustin.me>
 - thundersparkf - https://github.com/thundersparkf
-- Mickaël Schoentgen <mschoentgen@nuxeo.com>
 
 And thank you to the testers!

COPYING

@@ -671,4 +671,4 @@ into proprietary programs.  If your program is a subroutine library, you
 may consider it more useful to permit linking proprietary applications with
 the library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.  But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -1,8 +1,9 @@
 # Stegano
 
+[![builds.sr.ht status](https://builds.sr.ht/~cedric/stegano.svg)](https://builds.sr.ht/~cedric/stegano)
 [![Workflow](https://github.com/cedricbonhomme/Stegano/workflows/Python%20application/badge.svg?style=flat-square)](https://github.com/cedricbonhomme/Stegano/actions?query=workflow%3A%22Python+application%22)
 
-[Stegano](https://github.com/cedricbonhomme/Stegano), a pure Python Steganography
+[Stegano](https://sr.ht/~cedric/stegano), a pure Python Steganography
 module.
 
 Steganography is the art and science of writing hidden messages in such a way
@@ -11,6 +12,9 @@ existence of the message, a form of security through obscurity. Consequently,
 functions provided by Stegano only hide messages, without encryption.
 Steganography is often used with cryptography.
 
+For reporting issues, visit the tracker here:
+https://todo.sr.ht/~cedric/stegano
+
 
 ## Installation
 
@@ -93,23 +97,11 @@ Contributions are welcome. If you want to contribute to Stegano I highly
 recommend you to install it in a Python virtual environment with poetry.
 
 
-## Donations
-
-If you wish and if you like Stegano, you can donate via GitHub Sponsors:
-
-[![GitHub Sponsors](https://img.shields.io/github/sponsors/cedricbonhomme)](https://github.com/sponsors/cedricbonhomme)
-
-or with Bitcoin to this address:  
-bc1q56u6sj7cvlwu58v5lemljcvkh7v2gc3tv8mj0e
-
-Thank you !
-
-
 ## License
 
 This software is licensed under
 [GNU General Public License version 3](https://www.gnu.org/licenses/gpl-3.0.html)
 
-Copyright (C) 2010-2025 [Cédric Bonhomme](https://www.cedricbonhomme.org)
+Copyright (C) 2010-2022 [Cédric Bonhomme](https://www.cedricbonhomme.org)
 
 For more information, [the list of authors and contributors](CONTRIBUTORS.md) is available.

bin/lsb.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -24,7 +26,6 @@ __revision__ = "$Date: 2019/06/04 $"
 __license__ = "GPLv3"
 
 import inspect
-
 import crayons
 
 try:
@@ -33,10 +34,10 @@ try:
 except Exception:
     print("Install stegano: pipx install Stegano")
 
-import argparse
-
 from stegano import tools
 
+import argparse
+
 
 class ValidateGenerator(argparse.Action):
     def __call__(self, parser, args, values, option_string=None):
@@ -75,7 +76,7 @@ def main():
         choices=tools.ENCODINGS.keys(),
         default="UTF-8",
         help="Specify the encoding of the message to hide."
-        " UTF-8 (default) or UTF-32LE.",
+        + " UTF-8 (default) or UTF-32LE.",
     )
 
     # Generator
@@ -130,7 +131,7 @@ def main():
         choices=tools.ENCODINGS.keys(),
         default="UTF-8",
         help="Specify the encoding of the message to reveal."
-        " UTF-8 (default) or UTF-32LE.",
+        + " UTF-8 (default) or UTF-32LE.",
     )
 
     # Generator
@@ -178,7 +179,7 @@ def main():
                     generator = getattr(generators, arguments.generator_function[0])()
 
             except AttributeError:
-                print(f"Unknown generator: {arguments.generator_function}")
+                print("Unknown generator: {}".format(arguments.generator_function))
                 exit(1)
 
     if arguments.command == "hide":
@@ -222,6 +223,6 @@ def main():
         all_generators = inspect.getmembers(generators, inspect.isfunction)
         for generator in all_generators:
             print("Generator id:")
-            print(f"    {crayons.green(generator[0], bold=True)}")
+            print("    {}".format(crayons.green(generator[0], bold=True)))
             print("Desciption:")
-            print(f"    {generator[1].__doc__}")
+            print("    {}".format(generator[1].__doc__))

bin/parity.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -22,10 +24,10 @@ __version__ = "$Revision: 0.7 $"
 __date__ = "$Date: 2016/08/25 $"
 __license__ = "GPLv3"
 
-import argparse
-
 from PIL import Image
 
+import argparse
+
 try:
     from stegano.steganalysis import parity
 except Exception:

bin/red.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #

bin/statistics.py

@@ -1,6 +1,8 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
 # For more information : https://github.com/cedricbonhomme/Stegano
 #
@@ -23,10 +25,10 @@ __date__ = "$Date: 2016/08/26 $"
 __revision__ = "$Date: 2016/08/26 $"
 __license__ = "GPLv3"
 
-import argparse
-
 from PIL import Image
 
+import argparse
+
 try:
     from stegano.steganalysis import statistics
 except Exception:

docs/conf.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 #
 # Stéganô documentation build configuration file, created by
 # sphinx-quickstart on Wed Jul 25 13:33:39 2012.
@@ -9,13 +10,17 @@
 #
 # All configuration values have a default; values that are commented out
 # serve to show the default.
+
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
 # sys.path.insert(0, os.path.abspath('.'))
+
 # -- General configuration -----------------------------------------------------
+
 # If your documentation needs a minimal Sphinx version, state it here.
 # needs_sphinx = '1.0'
+
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = []
@@ -34,7 +39,7 @@ master_doc = "index"
 
 # General information about the project.
 project = "Stegano"
-copyright = "2010-2025, Cédric Bonhomme"
+copyright = "2010-2022, Cédric Bonhomme"
 author = "Cédric Bonhomme <cedric@cedricbonhomme.org>"
 
 # The version info for the project you're documenting, acts as replacement for
@@ -165,6 +170,6 @@ latex_documents = [
 latex_show_urls = True
 latex_show_pagerefs = True
 
-ADDITIONAL_PREAMBLE = r"""
+ADDITIONAL_PREAMBLE = """
 \setcounter{tocdepth}{3}
 """

docs/index.rst

@@ -6,6 +6,10 @@
 Presentation
 ============
 
+.. image:: https://builds.sr.ht/~cedric/stegano.svg
+    :target: https://builds.sr.ht/~cedric/stegano
+
+
 Stegano_ is a pure Python steganography_ module.
 
 Steganography is the art and science of writing hidden messages in such a way
@@ -49,7 +53,7 @@ Tutorial
     steganalysis
 
 You can have a look at the
-`unit tests <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
+`unit tests <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
 
 
 License
@@ -73,7 +77,7 @@ Contact
 
 
 .. _Python: https://www.python.org
-.. _Stegano: https://github.com/cedricbonhomme/Stegano
+.. _Stegano: https://sr.ht/~cedric/stegano
 .. _`Pillow`: https://pypi.python.org/pypi/Pillow
 .. _`piexif`: https://pypi.python.org/pypi/piexif
 .. _steganography: http://en.wikipedia.org/wiki/Steganography

docs/installation.rst

@@ -12,4 +12,7 @@ If you want to retrieve the source code (with the unit tests):
 
 .. code-block:: bash
 
-    $ git clone https://github.com/cedricbonhomme/Stegano
+    $ git clone https://git.sr.ht/~cedric/stegano
+
+.. image:: https://builds.sr.ht/~cedric/stegano.svg
+    :target: https://builds.sr.ht/~cedric/stegano

docs/module.rst

@@ -2,7 +2,7 @@ Using Stegano as a Python module
 ================================
 
 You can find more examples in the
-`unit tests directory <https://github.com/cedricbonhomme/Stegano/tree/master/tests>`_.
+`unit tests directory <https://git.sr.ht/~cedric/stegano/tree/master/tests>`_.
 
 LSB method
 ----------

pyproject.toml

@@ -1,79 +1,66 @@
-[build-system]
+[tool.poetry]
-requires = ["poetry-core>=2.0"]
-build-backend = "poetry.core.masonry.api"
-
-
-[project]
 name = "stegano"
-version = "1.0.1"
+version = "0.11.1"
 description = "A pure Python Steganography module."
 authors = [
-    {name = "Cédric Bonhomme", email= "cedric@cedricbonhomme.org"}
+    "Cédric Bonhomme <cedric@cedricbonhomme.org>"
 ]
 license = "GPL-3.0-or-later"
+
 readme = "README.md"
-keywords = ["Steganography", "Security", "Stegano"]
 
-dynamic = ["classifiers"]
+homepage = "https://sr.ht/~cedric/stegano"
+repository = "https://git.sr.ht/~cedric/stegano"
+documentation = "https://stegano.readthedocs.io"
 
-requires-python = ">=3.10,<4.0"
+keywords = ["steganography", "security", "stegano"]
-dependencies = [
-    "pillow (>=9.5,<11.0)",
-    "piexif (>=1.1.3)",
-    "crayons (>=0.4.0)",
-    "opencv-python (>=4.8.1.78)"
-]
 
-[project.urls]
-Homepage = "https://github.com/cedricbonhomme/Stegano"
-Changelog = "https://github.com/cedricbonhomme/Stegano/blob/master/CHANGELOG.md"
-Repository = "https://github.com/cedricbonhomme/Stegano"
-Documentation = "https://stegano.readthedocs.io"
-
-[project.scripts]
-stegano-lsb = "stegano.console.lsb:main"
-stegano-red = "stegano.console.red:main"
-stegano-steganalysis-parity = "stegano.console.parity:main"
-stegano-steganalysis-statistics = "stegano.console.statistics:main"
-
-
-[tool.poetry]
-requires-poetry = ">=2.0"
 classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Environment :: Console",
     "Intended Audience :: Developers",
     "Intended Audience :: Science/Research",
     "Topic :: Security",
-    "Operating System :: POSIX :: Linux",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
-    "Programming Language :: Python :: 3.11",
-    "Programming Language :: Python :: 3.12",
-    "Programming Language :: Python :: 3.13",
     "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)"
 ]
+
 include = [
     "README.md",
     "COPYING",
     "CHANGELOG.md",
     "docs/**/*",
+    "bin/*"
 ]
 
+[tool.poetry.scripts]
+stegano-lsb = "bin.lsb:main"
+stegano-red = "bin.red:main"
+stegano-steganalysis-parity = "bin.parity:main"
+stegano-steganalysis-statistics = "bin.statistics:main"
 
-[tool.poetry.group.dev.dependencies]
+[tool.poetry.dependencies]
-mypy = "^1.8.0"
+python = ">=3.8,<3.12"
-flake8 = "^6.0.0"
+pillow = "^9.2.0"
-nose2 = "^0.14.0"
+piexif = "^1.1.3"
-Sphinx = "^6.2.1"
+crayons = "^0.4.0"
-pre-commit = "^3.6.0"
+opencv-python = "^4.6.0.66"
 
+[tool.poetry.dev-dependencies]
+mypy = "^0.910"
+flake8 = "^4.0.1"
+nose2 = "^0.10.0"
+Sphinx = "^4.2.0"
 
-[tool.poetry.group.dev]
+[build-system]
-optional = true
+requires = ["poetry>=0.12"]
-
+build-backend = "poetry.masonry.api"
 
 [tool.mypy]
-python_version = "3.12"
+python_version = "3.10"
 check_untyped_defs = true
 ignore_errors = false
 ignore_missing_imports = true
@@ -88,6 +75,3 @@ show_error_context = true
 pretty = true
 
 exclude = "build|dist|docs|stegano.egg-info"
-
-[tool.isort]
-profile = "black"

stegano/__init__.py

@@ -1,5 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
-from . import exifHeader, lsb, red, steganalysis
+from . import red
+from . import exifHeader
+from . import lsb
+
+from . import steganalysis
 
 __all__ = ["red", "exifHeader", "lsb", "steganalysis"]

stegano/exifHeader/__init__.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
 from .exifHeader import hide, reveal
 

stegano/exifHeader/exifHeader.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,7 +26,6 @@ __revision__ = "$Date: 2017/01/18 $"
 __license__ = "GPLv3"
 
 import piexif
-
 from stegano import tools
 
 
@@ -36,11 +37,11 @@ def hide(
     img_format=None,
 ):
     """Hide a message (string) in an image."""
-    from base64 import b64encode
     from zlib import compress
+    from base64 import b64encode
 
     if secret_file is not None:
-        with open(secret_file) as f:
+        with open(secret_file, "r") as f:
             secret_message = f.read()
 
     try:

stegano/lsb/__init__.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
 from .lsb import hide, reveal
 

stegano/lsb/generators.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,11 +26,10 @@ __revision__ = "$Date: 2021/11/29 $"
 __license__ = "GPLv3"
 
 import itertools
-import math
-from typing import Any, Dict, Iterator, List
-
 import cv2
 import numpy as np
+import math
+from typing import Dict, Iterator, List, Any
 
 
 def identity() -> Iterator[int]:
@@ -72,7 +73,7 @@ def eratosthenes() -> Iterator[int]:
     """Generate the prime numbers with the sieve of Eratosthenes.
     https://oeis.org/A000040
     """
-    d: Dict[int, List[int]] = {}
+    d = {}  # type: Dict[int, List[int]]
     for i in itertools.count(2):
         if i in d:
             for j in d[i]:
@@ -89,7 +90,8 @@ def composite() -> Iterator[int]:
     """
     p1 = 3
     for p2 in eratosthenes():
-        yield from range(p1 + 1, p2)
+        for n in range(p1 + 1, p2):
+            yield n
         p1 = p2
 
 
@@ -223,7 +225,7 @@ def LFSR(m: int) -> Iterator[int]:
         # Add the feedback bit
         state.insert(0, feedback)
         # Convert the registers to an int
-        out = sum(e * (2**i) for i, e in enumerate(state))
+        out = sum([e * (2**i) for i, e in enumerate(state)])
         yield out
 
 
@@ -242,7 +244,7 @@ def shi_tomashi(
         gray, max_corners, quality, min_distance
     )
     corners_int: np.ndarray[Any, np.dtype[np.signedinteger[Any]]] = np.array(
-        np.intp(corners)
+        np.int0(corners)
     )
     i = 0
     while True:

stegano/lsb/lsb.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -25,9 +27,8 @@ __license__ = "GPLv3"
 
 from typing import IO, Iterator, Union
 
-from stegano import tools
-
 from .generators import identity
+from stegano import tools
 
 
 def hide(
@@ -67,10 +68,9 @@ def reveal(
     generator: Union[None, Iterator[int]] = None,
     shift: int = 0,
     encoding: str = "UTF-8",
-    close_file: bool = True,
 ):
     """Find a message in an image (with the LSB technique)."""
-    revealer = tools.Revealer(encoded_image, encoding, close_file)
+    revealer = tools.Revealer(encoded_image, encoding)
     width = revealer.encoded_image.width
 
     if not generator:

stegano/red/__init__.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
 from .red import hide, reveal
 

stegano/red/red.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stéganô is a basic Python Steganography module.
-# Copyright (C) 2010-2024  Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

stegano/steganalysis/__init__.py

@@ -1 +1,2 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-

stegano/steganalysis/parity.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -34,10 +36,7 @@ def steganalyse(img: Image.Image) -> Image.Image:
     width, height = img.size
     for row in range(height):
         for col in range(width):
-            if pixel := img.getpixel((col, row)):
+            r, g, b = img.getpixel((col, row))[0:3]
-                r, g, b = pixel[0:3]
-            else:
-                raise Exception("Error during steganlysis.")
             if r % 2 == 0:
                 r = 0
             else:

stegano/steganalysis/statistics.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -24,7 +26,9 @@ __revision__ = "$Date: 2021/11/01 $"
 __license__ = "GPLv3"
 
 import typing
-from collections import Counter, OrderedDict
+
+from collections import Counter
+from collections import OrderedDict
 
 
 def steganalyse(img):
@@ -32,7 +36,7 @@ def steganalyse(img):
     Steganlysis of the LSB technique.
     """
     width, height = img.size
-    colours_counter: typing.Counter[int] = Counter()
+    colours_counter = Counter()  # type: typing.Counter[int]
     for row in range(height):
         for col in range(width):
             r, g, b = img.getpixel((col, row))
@@ -43,7 +47,7 @@ def steganalyse(img):
         sorted(list(colours_counter.items()), key=lambda t: t[1])
     )
 
-    colours: float = 0
+    colours = 0  # type: float
     for colour in list(dict_colours.keys()):
         colours += colour
     colours = colours / len(dict_colours)

stegano/tools.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,7 +28,7 @@ __license__ = "GPLv3"
 import base64
 import itertools
 from functools import reduce
-from typing import IO, List, Union
+from typing import IO, Iterator, List, Tuple, Union
 
 from PIL import Image
 
@@ -74,7 +76,9 @@ def setlsb(component: int, bit: str) -> int:
     return component & ~1 | int(bit)
 
 
-def n_at_a_time(items: List[int], n: int, fillvalue: str):
+def n_at_a_time(
+    items: List[int], n: int, fillvalue: str
+) -> Iterator[Tuple[Union[int, str]]]:
     """Returns an iterator which groups n items at a time.
     Any final partial tuple will be padded with the fillvalue
 
@@ -130,7 +134,7 @@ class Hider:
 
         if image.mode not in ["RGB", "RGBA"]:
             if not auto_convert_rgb:
-                print(f"The mode of the image is not RGB. Mode is {image.mode}")
+                print("The mode of the image is not RGB. Mode is {}".format(image.mode))
                 answer = input("Convert the image to RGB ? [Y / n]\n") or "Y"
                 if answer.lower() == "n":
                     raise Exception("Not a RGB image.")
@@ -150,7 +154,7 @@ class Hider:
 
         if self._len_message_bits > npixels * 3:
             raise Exception(
-                f"The message you want to hide is too long: {message_length}"
+                "The message you want to hide is too long: {}".format(message_length)
             )
 
     def encode_another_pixel(self):
@@ -175,19 +179,13 @@ class Hider:
 
 
 class Revealer:
-    def __init__(
+    def __init__(self, encoded_image: Union[str, IO[bytes]], encoding: str = "UTF-8"):
-        self,
-        encoded_image: Union[str, IO[bytes]],
-        encoding: str = "UTF-8",
-        close_file: bool = True,
-    ):
         self.encoded_image = open_image(encoded_image)
         self._encoding_length = ENCODINGS[encoding]
         self._buff, self._count = 0, 0
         self._bitab: List[str] = []
         self._limit: Union[None, int] = None
         self.secret_message = ""
-        self.close_file = close_file
 
     def decode_pixel(self, coordinate: tuple):
         # pixel = [r, g, b] or [r,g,b,a]
@@ -214,8 +212,7 @@ class Revealer:
             self.secret_message = "".join(self._bitab)[
                 len(str(self._limit)) + 1 :  # noqa: E203
             ]
-            if self.close_file:
+            self.encoded_image.close()
-                self.encoded_image.close()
 
             return True
 

tests/test_exifHeader.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,9 +25,9 @@ __date__ = "$Date: 2016/05/17 $"
 __revision__ = "$Date: 2017/01/18 $"
 __license__ = "GPLv3"
 
-import io
 import os
 import unittest
+import io
 
 from stegano import exifHeader
 

tests/test_generators.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,9 +25,8 @@ __date__ = "$Date: 2017/03/01 $"
 __revision__ = "$Date: 2017/03/01 $"
 __license__ = "GPLv3"
 
-import itertools
 import unittest
-
+import itertools
 import cv2
 import numpy as np
 
@@ -70,7 +71,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_eratosthenes(self):
         """Test the Eratosthenes sieve."""
-        with open("./tests/expected-results/eratosthenes") as f:
+        with open("./tests/expected-results/eratosthenes", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.eratosthenes(), 168)),
                 tuple(int(line) for line in f),
@@ -78,7 +79,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_composite(self):
         """Test the composite sieve."""
-        with open("./tests/expected-results/composite") as f:
+        with open("./tests/expected-results/composite", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.composite(), 114)),
                 tuple(int(line) for line in f),
@@ -86,7 +87,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_fermat(self):
         """Test the Fermat generator."""
-        with open("./tests/expected-results/fermat") as f:
+        with open("./tests/expected-results/fermat", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.fermat(), 9)),
                 tuple(int(line) for line in f),
@@ -94,7 +95,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_triangular_numbers(self):
         """Test the Triangular numbers generator."""
-        with open("./tests/expected-results/triangular_numbers") as f:
+        with open("./tests/expected-results/triangular_numbers", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.triangular_numbers(), 54)),
                 tuple(int(line) for line in f),
@@ -102,7 +103,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_mersenne(self):
         """Test the Mersenne generator."""
-        with open("./tests/expected-results/mersenne") as f:
+        with open("./tests/expected-results/mersenne", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.mersenne(), 20)),
                 tuple(int(line) for line in f),
@@ -110,7 +111,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_carmichael(self):
         """Test the Carmichael generator."""
-        with open("./tests/expected-results/carmichael") as f:
+        with open("./tests/expected-results/carmichael", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.carmichael(), 33)),
                 tuple(int(line) for line in f),
@@ -118,7 +119,7 @@ class TestGenerators(unittest.TestCase):
 
     def test_ackermann_slow(self):
         """Test the Ackermann set."""
-        with open("./tests/expected-results/ackermann") as f:
+        with open("./tests/expected-results/ackermann", "r") as f:
             self.assertEqual(generators.ackermann_slow(3, 1), int(f.readline()))
             self.assertEqual(generators.ackermann_slow(3, 2), int(f.readline()))
 
@@ -126,13 +127,13 @@ class TestGenerators(unittest.TestCase):
         """Test the Naive Ackermann generator"""
         gen = generators.ackermann_naive(3)
         next(gen)
-        with open("./tests/expected-results/ackermann") as f:
+        with open("./tests/expected-results/ackermann", "r") as f:
             self.assertEqual(next(gen), int(f.readline()))
             self.assertEqual(next(gen), int(f.readline()))
 
     def test_ackermann_fast(self):
         """Test the Ackermann set."""
-        with open("./tests/expected-results/ackermann") as f:
+        with open("./tests/expected-results/ackermann", "r") as f:
             self.assertEqual(generators.ackermann_fast(3, 1), int(f.readline()))
             self.assertEqual(generators.ackermann_fast(3, 2), int(f.readline()))
             self.assertEqual(generators.ackermann_fast(4, 1), int(f.readline()))
@@ -141,13 +142,13 @@ class TestGenerators(unittest.TestCase):
         """Test the Ackermann generator"""
         gen = generators.ackermann(3)
         next(gen)
-        with open("./tests/expected-results/ackermann") as f:
+        with open("./tests/expected-results/ackermann", "r") as f:
             self.assertEqual(next(gen), int(f.readline()))
             self.assertEqual(next(gen), int(f.readline()))
 
     def test_LFSR(self):
         """Test the LFSR generator"""
-        with open("./tests/expected-results/LFSR") as f:
+        with open("./tests/expected-results/LFSR", "r") as f:
             self.assertEqual(
                 tuple(itertools.islice(generators.LFSR(2**8), 256)),
                 tuple(int(line) for line in f),
@@ -174,8 +175,9 @@ class TestGenerators(unittest.TestCase):
         test_file_reshaped = test_file.reshape(
             int(test_file.shape[0]), int(test_file.shape[1])
         )
-        res = np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0)  # type: ignore
+        self.assertIsNone(
-        self.assertIsNone(res)
+            np.testing.assert_allclose(corners, test_file_reshaped, rtol=1e-0, atol=0)
+        )
 
     @staticmethod
     def shi_tomashi_reconfigure(

tests/test_lsb.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2024  Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -171,12 +173,7 @@ class TestLSB(unittest.TestCase):
     @patch("builtins.input", return_value="n")
     def test_refuse_convert_rgb(self, input):
         message_to_hide = "Hello World!"
-        # lsb.hide(
+        with self.assertRaises(Exception):
-        #         "./tests/sample-files/Lenna-grayscale.png",
-        #         message_to_hide,
-        #         generators.eratosthenes(),
-        #     )
-        with self.assertRaisesRegex(Exception, "Not a RGB image."):
             lsb.hide(
                 "./tests/sample-files/Lenna-grayscale.png",
                 message_to_hide,
@@ -213,9 +210,7 @@ class TestLSB(unittest.TestCase):
         with open("./tests/sample-files/lorem_ipsum.txt") as f:
             message = f.read()
         message += message * 2
-        with self.assertRaisesRegex(
+        with self.assertRaises(Exception):
-            Exception, "The message you want to hide is too long:"
-        ):
             lsb.hide("./tests/sample-files/Lenna.png", message, generators.identity())
 
     def test_hide_and_reveal_with_bad_generator(self):

tests/test_red.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by

tests/test_steganalysis.py

@@ -1,9 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 
 # Stegano - Stegano is a pure Python steganography module.
 # Copyright (C) 2010-2017  Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -26,10 +27,9 @@ __license__ = "GPLv3"
 
 import unittest
 
-from PIL import Image, ImageChops
-
 from stegano import lsb
 from stegano.steganalysis import parity, statistics
+from PIL import Image, ImageChops
 
 
 class TestSteganalysis(unittest.TestCase):

tests/test_tools.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
 # Stegano - Stegano is a pure Python steganography module.
-# Copyright (C) 2010-2025 Cédric Bonhomme - https://www.cedricbonhomme.org
+# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
 #
-# For more information : https://github.com/cedricbonhomme/Stegano
+# For more information : https://git.sr.ht/~cedric/stegano
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -81,7 +83,7 @@ class TestTools(unittest.TestCase):
         self.assertEqual(list(result), [(1, 2), (3, 4), (5, "X")])
 
     def test_binary2base64(self):
-        with open("./tests/expected-results/binary2base64") as f:
+        with open("./tests/expected-results/binary2base64", "r") as f:
             expected_value = f.read()
         value = tools.binary2base64("tests/sample-files/free-software-song.ogg")
         self.assertEqual(expected_value, value)