diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 63ec2e1cd7..68cc1393ad 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: "Build Package"
-        uses: pyansys/pydpf-actions/build_package@v2.1
+        uses: pyansys/pydpf-actions/build_package@v2.1.1
         with:
           python-version: ${{ matrix.python-version }}
           ANSYS_VERSION: ${{env.ANSYS_VERSION}}
@@ -44,7 +44,7 @@ jobs:
           install_extras: plotting
 
       - name: "Test Package"
-        uses: pyansys/pydpf-actions/test_package@v2.1
+        uses: pyansys/pydpf-actions/test_package@v2.1.1
         with:
           MODULE: ${{env.MODULE}}
 
@@ -90,7 +90,7 @@ jobs:
       - name: Install ansys-dpf-core
         shell: cmd
         run: |
-          pip install -r requirements_build.txt
+          pip install -r requirements/requirements_build.txt
           python setup.py bdist_wheel
           FOR /F %%a in ('dir /s/b dist\*.whl') do SET WHEELPATH=%%a
           ECHO %WHEELPATH%
@@ -114,7 +114,7 @@ jobs:
 
       - name: Install documentation packages for Python
         run: |
-          pip install -r requirements_docs.txt
+          pip install -r requirements/requirements_docs.txt
 
       - name: Build Documentation
         shell: cmd
diff --git a/.github/workflows/style.yml b/.github/workflows/style.yml
index 4becda9bf3..06925f4406 100644
--- a/.github/workflows/style.yml
+++ b/.github/workflows/style.yml
@@ -33,7 +33,7 @@ jobs:
 
       - name: Install style requirements
         run: |
-          pip install -r requirements_style.txt --disable-pip-version-check
+          pip install -r requirements/requirements_style.txt --disable-pip-version-check
 
       - name: Codespell
         run: |
diff --git a/.gitignore b/.gitignore
index e43abd59d1..e8da655cfc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,32 +1,164 @@
-# cache and pyc
-__pycache__
-.pytest_cache
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+doc/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
 .spyproject
 
-#tests
-__pycache__
-/tests/.pytest_cache
+# Rope project settings
+.ropeproject
 
-#ansys/dpf
-/ansys/dpf/__pycache__
+# mkdocs documentation
+/site
 
-#ansys/dpf/core
-/ansys/dpf/core/__pycache__
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
 
-#operators
-/ansys/dpf/core/operators/__pycache__
+# Pyre type checker
+.pyre/
 
-#other
-/perso
-.ipynb_checkpoints/
+# pytype static type analyzer
+.pytype/
 
-# compiled documentation
-docs/build
+# Cython debug symbols
+cython_debug/
 
-# pip files
-*.egg-info
-build/
-dist/
+# PyCharm
+#  JetBrains specific template is maintainted in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+.idea/
+
+# Visual Studio
+.vs/
+
+# End of https://www.toptal.com/developers/gitignore/api/python
+
+#other
+/perso
 
 # emacs
 flycheck*
@@ -38,14 +170,12 @@ flycheck*
 docker/v211
 
 # pytest -coverage
-.coverage
 test-output.xml
 
 # downloaded files
 ansys/dpf/core/examples/_cache/
 
 *.orig
-venv/*
 
 # Visual studio code settings
 .vscode
diff --git a/docs/source/contributing.rst b/docs/source/contributing.rst
index eba28ed57a..82cc0a8f3a 100644
--- a/docs/source/contributing.rst
+++ b/docs/source/contributing.rst
@@ -184,7 +184,7 @@ installed.  Next, install the testing requirements with:
 
 .. code::
 
-    pip install -r requirements_test.txt
+    pip install -r requirements/requirements_test.txt
 
 Run the primary test suite and generate a coverage report with:
 
@@ -260,7 +260,7 @@ following from the DPF-Core source directory:
 
 .. code::
 
-   pip install -r requirements_docs.txt
+   pip install -r requirements/requirements_docs.txt
 
 
 Next, if running Linux/Mac OS, build the documentation with 
diff --git a/requirements_build.txt b/requirements/requirements_build.txt
similarity index 100%
rename from requirements_build.txt
rename to requirements/requirements_build.txt
diff --git a/requirements_docs.txt b/requirements/requirements_docs.txt
similarity index 100%
rename from requirements_docs.txt
rename to requirements/requirements_docs.txt
diff --git a/requirements_style.txt b/requirements/requirements_style.txt
similarity index 100%
rename from requirements_style.txt
rename to requirements/requirements_style.txt
diff --git a/requirements_test.txt b/requirements/requirements_test.txt
similarity index 100%
rename from requirements_test.txt
rename to requirements/requirements_test.txt
diff --git a/testing.md b/testing.md
index 059f371421..31590eec8a 100644
--- a/testing.md
+++ b/testing.md
@@ -2,7 +2,8 @@
 
 ## Unit Testing
 
-Once ansys-dpf-core package is installed (see README.md), unit tests can be run by installing the testing requirements with `pip install -r requirements_test.txt` and then running pytest with:
+Once ansys-dpf-core package is installed (see README.md), unit tests can be run
+by installing the testing requirements with `pip install -r requirements/requirements_test.txt` and then running pytest with:
 
 ```
 pytest