Refactor code base

CHANGELOG.md

@@ -0,0 +1,17 @@
+# Changelog
+
+## Version 2.0.0 - 2021-03-09
+### Added
+- `BaseCompresser` class and subclasses to handle compression streams.
+- `BasePicklerIO` class and subclasses to handle dump and load of python objects.
+- Registry of `BaseCompresser` classes with the mappings that relate them to compression names, file extensions and default read and write modes.
+- Registry of `BasePicklerIO` classes with the mappings that relate them to pickler names.
+- Singledispatch functions `compress_pickle.io.base.compress_and_serialize` and `compress_pickle.io.base.uncompress_and_unserialize` that implement the core input/output functionality.
+- `pickler_method` and `pickler_kwargs` arguments for all `dump`, `dumps`, `load` and `loads`. This now enables users to choose the pickler backend.
+- Added support for several pickler backends such as `marshal`, `dill` and `cloudpickle`.
+- Added the ability for compression methods to support more than one file extension. Now `bz2` and `lzma` also are applied for the `.bz2` and `.xz` extensions respectively.
+
+### Removed
+- The `optimize` argument of the `dump` and `dumps` function was removed. To use the same functionality, you should pass the argument `pickler_method="optimized_pickle"` to `dump` and `dumps`.
+- The argument `unhandled_extensions` has been removed from `dump`, `dumps`, `load` and `loads`. The current behavior is to always raise an exception when the compression protocol is unknown.
+- All functions from the `compress_pickle.utils` module with the exception of `_stringify_path`. All of the logic implemented by the old functions has been refactored into the registries, compressers and picklerIO classes.

azure-pipelines.yml

@@ -24,6 +24,12 @@ stages:
           test.unittest: True
           test.style: True
           test.docs: True
+        Python39:
+          python.version: '3.9'
+          imageName: 'ubuntu-latest'
+          test.unittest: True
+          test.style: True
+          test.docs: True
         Python37-Windows:
           python.version: '3.7'
           imageName: 'windows-latest'
@@ -45,10 +51,7 @@ stages:
     - bash: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        if [[ $(test.style) = "True" ]] || [[ $(test.docs) = "True" ]]
-        then
-          python -m pip install -r requirements-dev.txt
-        fi
+        python -m pip install -r requirements-dev.txt
         python -m pip install .[full]
       displayName: 'Install dependencies'
 

compress_pickle/__init__.py

@@ -1,14 +1,7 @@
 from .compress_pickle import dump, load, dumps, loads
-from .utils import (
-    get_known_compressions,
-    validate_compression,
-    get_default_compression_mapping,
-    get_compression_write_mode,
-    get_compression_read_mode,
-    set_default_extensions,
-    infer_compression_from_filename,
-    preprocess_path,
-    open_compression_stream,
-)
+from . import utils
+from . import compressers
+from . import picklers
+from . import io
 
-__version__ = "1.2.0"
+__version__ = "2.0.0"