diff --git a/.flake8 b/.flake8
deleted file mode 100644
index a9b6f3bbfb..0000000000
--- a/.flake8
+++ /dev/null
@@ -1,4 +0,0 @@
-[flake8]
-max-line-length = 88
-select = C,E,F,W
-ignore = E203, E266, E501, W503
diff --git a/.gitignore b/.gitignore
index e8b7666915..35d936cc9c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -44,4 +44,5 @@
 /gh-pages/
 /doc/doctrees/
 .vscode*
-.venv
\ No newline at end of file
+.venv
+.tox/
diff --git a/.travis.yml b/.travis.yml
index 452174799c..9b9c91bfbe 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,14 +1,21 @@
 language: python
-python:
-  - "3.5"
-  - "3.6"
-  - "3.7"
-  - "3.8"
+matrix:
+  include:
+    - python: 3.5
+      env: TOXENV=py35
+    - python: 3.6
+      env: TOXENV=py36
+    - python: 3.7
+      env: TOXENV=py37
+    - python: 3.8
+      env: TOXENV=py38
+    - env: TOXENV=flake8
+    - env: TOXENV=isort
+    - env: TOXENV=black
 install:
-  - pip install codecov flake8
+  - pip install tox
 script:
-  - flake8
-  - coverage run --source github,tests setup.py test
+  - tox
 after_success:
   - codecov
 notifications:
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5fead8c007..5560852001 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -23,6 +23,15 @@ Pull Requests should clearly describe two things:
 
 Ideally, changes should be made in logical commits and tests added to improve the project's coverage of the GitHub API.
 
+## Coding conventions
+
+PyGithub adopts the black coding style and uses isort to sort imports.
+
+To manually format the code:
+```
+tox -e format
+```
+
 ## Adding missing attributes for a GithubObject
 
 ```bash
@@ -84,11 +93,6 @@ To run manual tests with external scripts that use the PyGithub package, you can
 pip install --editable path/to/project
 ```
 
-## Coding conventions
-
-PyGithub follows [pep8 Style Guide for Python Code](http://www.python.org/dev/peps/pep-0008/) except for line length.
-Please check your code with [pep8 Python style guide checker](http://pypi.python.org/pypi/pep8), by running `pep8 --ignore=E501 github`.
-
 ## Build documentation locally
 
 ```
diff --git a/test-requirements.txt b/test-requirements.txt
index 48a0d018c7..db8faa7573 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,4 @@
 cryptography
 httpretty>=0.9.6
 parameterized>=0.7.0
+coverage==5.0.3
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000000..1f0178809f
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,43 @@
+[tox]
+envlist =
+    py{35,36,37,38},
+    flake8,
+    isort,
+    black
+
+[testenv]
+deps = -rtest-requirements.txt
+commands = coverage run --source github,tests setup.py test
+
+[testenv:flake8]
+basepython = python3.6
+skip_install = true
+deps = flake8
+commands = flake8 github tests scripts setup.py
+
+[testenv:isort]
+basepython = python3.6
+skip_install = true
+deps = isort
+commands = isort --check -rc github tests scripts setup.py
+
+[testenv:black]
+basepython = python3.6
+skip_install = true
+deps = black
+commands = black --check --diff github tests scripts setup.py
+
+[testenv:format]
+basepython = python3.6
+skip_install = true
+deps =
+    black
+    isort
+commands =
+    isort -rc github tests scripts setup.py
+    black github tests scripts setup.py
+
+[flake8]
+max-line-length = 88
+select = C,E,F,W
+ignore = E203, E266, E501, W503