diff --git a/.flake8 b/.flake8
index 321a3929..60b05147 100644
--- a/.flake8
+++ b/.flake8
@@ -1,18 +1,19 @@
 [flake8]
-select = C,D,E,F,W
+select = B,B9,C,D,E,F,N,S,W
 max-complexity = 10
 docstring-convention = google
 exclude = .venv,.git,.tox,docs,venv,bin,lib,deps,build,.eggs
+max-line-length = 80
 
-# To work with Black
-max-line-length = 88
-# E501: line too long
-# W503: Line break occurred before a binary operator
+# E501: line too long => covered by B950
+# W503: Line break occurred before a binary operator => Disabled for Black compatibility
 # E203: Whitespace before ':'
 # D202 No blank lines allowed after function docstring
 # W504 line break after binary operator
-ignore = W503
-#     E501,
+ignore = W503, E501
 #     E203,
 #     D202,
 #     W504
+
+# For avoiding issue with bandit
+per-file-ignores = tests/*:S101
diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
index 6bcce42f..a09db44f 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -1,7 +1,6 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-
 ---
 
 **Is your feature request related to a problem? Please describe.**
@@ -14,4 +13,4 @@ A clear and concise description of what you want to happen.
 A clear and concise description of any alternative solutions or features you've considered.
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
\ No newline at end of file
+Add any other context or screenshots about the feature request here.
diff --git a/.github/ISSUE_TEMPLATE/issue.md b/.github/ISSUE_TEMPLATE/issue.md
index 67edf36c..5793e974 100644
--- a/.github/ISSUE_TEMPLATE/issue.md
+++ b/.github/ISSUE_TEMPLATE/issue.md
@@ -1,13 +1,13 @@
 ---
 name: Issue
 about: Create a report to help us improve
-
 ---
 
 **Describe the bug**
 A clear and concise description of what the bug is.
 
 **log**
+
 ```
 Add your logs here.
-```
\ No newline at end of file
+```
diff --git a/.github/stale.yml b/.github/stale.yml
index 78973bca..239ed5cf 100644
--- a/.github/stale.yml
+++ b/.github/stale.yml
@@ -13,4 +13,4 @@ markComment: >
   This issue has been automatically marked as stale because it has not had
   recent activity. It will be closed if no further activity occurs.
 # Comment to post when closing a stale issue. Set to `false` to disable
-closeComment: false
\ No newline at end of file
+closeComment: false
diff --git a/.gitignore b/.gitignore
index 6893bef0..23a1fdb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -129,4 +129,4 @@ dmypy.json
 .pyre/
 
 # Editor
-/.vscode
\ No newline at end of file
+/.vscode
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
new file mode 100644
index 00000000..991a0ec2
--- /dev/null
+++ b/.pre-commit-config.yaml
@@ -0,0 +1,51 @@
+repos:
+  - repo: local
+    hooks:
+      - id: black
+        name: black
+        entry: black
+        language: system
+        types: [python]
+        require_serial: true
+      - id: flake8
+        name: flake8
+        entry: flake8
+        language: system
+        types: [python]
+        require_serial: true
+      - id: check-added-large-files
+        name: Check for added large files
+        entry: check-added-large-files
+        language: system
+      - id: check-toml
+        name: Check Toml
+        entry: check-toml
+        language: system
+        types: [toml]
+      - id: check-yaml
+        name: Check Yaml
+        entry: check-yaml
+        language: system
+        types: [yaml]
+      - id: end-of-file-fixer
+        name: Fix End of Files
+        entry: end-of-file-fixer
+        language: system
+        types: [text]
+        stages: [commit, push, manual]
+      - id: trailing-whitespace
+        name: Trim Trailing Whitespace
+        entry: trailing-whitespace-fixer
+        language: system
+        types: [text]
+        stages: [commit, push, manual]
+      - id: reorder-python-imports
+        name: Reorder python imports
+        entry: reorder-python-imports
+        language: system
+        types: [python]
+        args: [--application-directories=src]
+  - repo: https://github.com/prettier/prettier
+    rev: 2.0.5
+    hooks:
+      - id: prettier
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9cbd4be8..56251df5 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -15,8 +15,8 @@ en participant à la documentation.
 
 Vous aurez besoin de Python 3.6+ et des outils suivants:
 
--   [Poetry](https://python-poetry.org)
--   [Nox](https://nox.thea.codes/en/stable)
+- [Poetry](https://python-poetry.org)
+- [Nox](https://nox.thea.codes/en/stable)
 
 Installez le package avec les dépendances de développement:
 
@@ -26,6 +26,10 @@ Vous pouvez maintenant utiliser une session interactive Python:
 
 `$ poetry run python`
 
+Je vous recommande d'installer un pre-commit-hook pour lancer automatiquement quelques vérfication avant de commit vos modifications.
+
+`$ nox -s pre-commit -- install`
+
 ## Tester le projet
 
 Dérouler la suite de tests complète:
@@ -45,12 +49,12 @@ Les tests unitaires sont dans le répertoire `tests` et utilisent le framework p
 
 ### Soumettre votre Pull Request (PR)
 
-Oouvrez une [pull requet](https://github.com/hacf-fr/meteofrance-api/pulls) pour proposer des changements à ce projet.
+Ouvrez une [pull request](https://github.com/hacf-fr/meteofrance-api/pulls) pour proposer des changements à ce projet.
 
 Votre pull request doit vérifier les conditions suivantes pour être acceptée:
 
--   La suite de tests Nox doit réussir sans erreurs ni warning.
--   Doit inclure des tests unitaires. Ce projet maintien une couverture de code à 100%.
+- La suite de tests Nox doit réussir sans erreurs ni warning.
+- Doit inclure des tests unitaires. Ce projet maintien une couverture de code à 100%.
 
 ### Proposer une nouvelle fonctionnalité
 
@@ -67,8 +71,8 @@ improvements ideas, or contribute to the documentation.
 
 You need Python 3.6+ and the following tools:
 
--   [Poetry](https://python-poetry.org)
--   [Nox](https://nox.thea.codes/en/stable)
+- [Poetry](https://python-poetry.org)
+- [Nox](https://nox.thea.codes/en/stable)
 
 Install the package with development requirements:
 
@@ -78,6 +82,10 @@ You can now run an interactive Python session, or the command-line interface:
 
 `$ poetry run python`
 
+I recommand to install a pre-commit-hook to have some checks done automatically before you commit your changes.
+
+`$ nox -s pre-commit -- install`
+
 ### How to test the project
 
 Run the full test suite:
@@ -96,12 +104,12 @@ Unit tests are located in the tests directory, and are written using the pytest
 
 ### How to submit changes
 
-Open a [pull requet](https://github.com/hacf-fr/meteofrance-api/pulls) to submit changes to this project.
+Open a [pull request](https://github.com/hacf-fr/meteofrance-api/pulls) to submit changes to this project.
 
 Your pull request needs to meet the following guidelines for acceptance:
 
--   The Nox test suite must pass without errors and warnings.
--   Include unit tests. This project maintains 100% code coverage.
+- The Nox test suite must pass without errors and warnings.
+- Include unit tests. This project maintains 100% code coverage.
 
 ### Feature suggestion
 
diff --git a/README.md b/README.md
index 690ca204..d5e0772f 100644
--- a/README.md
+++ b/README.md
@@ -23,12 +23,12 @@ Météo-France utilisée par les applications moblies officielles.
 
 Le client permet:
 
--   Rechercher des lieux de prévisions.
--   Accéder aux prévisions météorologiques horraires ou quotidiennes.
--   Accéder aux prévisions de pluie dans l'heure quand disponibles.
--   Accéder aux alertes météo pour chaque département français et l'Andorre. Deux
-    bulletins sont disponibles : un synthétique et un second avec l'évolution des alertes
-    pour les prochaines 24 heures (exemple [ici](http://vigilance.meteofrance.com/Bulletin_sans.html?a=dept32&b=2&c=)).
+- Rechercher des lieux de prévisions.
+- Accéder aux prévisions météorologiques horraires ou quotidiennes.
+- Accéder aux prévisions de pluie dans l'heure quand disponibles.
+- Accéder aux alertes météo pour chaque département français et l'Andorre. Deux
+  bulletins sont disponibles : un synthétique et un second avec l'évolution des alertes
+  pour les prochaines 24 heures (exemple [ici](http://vigilance.meteofrance.com/Bulletin_sans.html?a=dept32&b=2&c=)).
 
 Ce package a été développé avec l'intention d'être utilisé par [Home-Assistant](https://home-assistant.io/) mais il peut être utilsé dans d'autres contextes.
 
@@ -55,17 +55,17 @@ used by the official moblie applications.
 
 The client allows:
 
--   Search a forecast location.
--   Fetch daily or hourly weather forecast.
--   Fetch rain forecast within the next hour if available.
--   Fetch the weather alerts or phenomenoms for each French department or Andorre.
-    Two bulletin are availabe: one basic and an other advanced with the timelaps evolution for the next 24 hours (example [here](http://vigilance.meteofrance.com/Bulletin_sans.html?a=dept32&b=2&c=)).
+- Search a forecast location.
+- Fetch daily or hourly weather forecast.
+- Fetch rain forecast within the next hour if available.
+- Fetch the weather alerts or phenomenoms for each French department or Andorre.
+  Two bulletin are availabe: one basic and an other advanced with the timelaps evolution for the next 24 hours (example [here](http://vigilance.meteofrance.com/Bulletin_sans.html?a=dept32&b=2&c=)).
 
 This package have been developed to be used with [Home-Assistant](https://home-assistant.io/) but it can be used in other contexts.
 
 ### Installation
 
-To use the `meteofrance` Python  module, you have to install this package first:
+To use the `meteofrance` Python module, you have to install this package first:
 
 `pip install meteofrance-api`
 
@@ -76,23 +76,13 @@ You will find an example ot usage in a Python program in the [integration test](
 Contributions are welcomed. Please check the guidelines in [`CONTRIBUTING.md`](CONTRIBUTING.md).
 
 [commits-shield]: https://img.shields.io/github/commit-activity/y/hacf-fr/meteofrance-api.svg?style=for-the-badge
-
 [commits]: https://github.com/hacf-fr/meteofrance-api/commits/master
-
 [license-shield]: https://img.shields.io/github/license/hacf-fr/meteofrance-api.svg?style=for-the-badge
-
 [releases-shield]: https://img.shields.io/github/release/hacf-fr/meteofrance-api.svg?style=for-the-badge
-
 [releases]: https://github.com/hacf-fr/meteofrance-api/releases
-
 [build-shield]: https://img.shields.io/github/workflow/status/hacf-fr/meteofrance-api/Python%20package?style=for-the-badge
-
 [build]: https://github.com/hacf-fr/meteofrance-api/actions?query=workflow%3A%22Python+package%22
-
 [codecov-shield]: https://img.shields.io/codecov/c/github/hacf-fr/meteofrance-api?style=for-the-badge
-
 [codecov]: https://codecov.io/gh/hacf-fr/meteofrance-api
-
 [pypi-shield]: https://img.shields.io/pypi/v/meteofrance-api?style=for-the-badge
-
 [pypi]: https://pypi.org/project/meteofrance-api/
diff --git a/noxfile.py b/noxfile.py
index f425d5f1..c7f0e9dd 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -2,14 +2,16 @@
 import contextlib
 import tempfile
 from pathlib import Path
-from typing import Iterator, cast
+from textwrap import dedent
+from typing import cast
+from typing import Iterator
 
 import nox
 from nox.sessions import Session
 
 python_versions = ["3.8", "3.7", "3.6"]
 package = "meteofrance_api"
-nox.options.sessions = "lint", "tests"
+nox.options.sessions = "pre-commit", "safety", "tests"
 locations = "src", "tests", "noxfile.py"
 
 
@@ -107,6 +109,87 @@ def install(session: Session, *args: str) -> None:
         session.install(f"--constraint={requirements}", *args)
 
 
+def activate_virtualenv_in_precommit_hooks(session: Session) -> None:
+    """Activate virtualenv in hooks installed by pre-commit.
+
+    This function patches git hooks installed by pre-commit to activate the
+    session's virtual environment. This allows pre-commit to locate hooks in
+    that environment when invoked from git.
+
+    Args:
+        session: The Session object.
+    """
+    if session.bin is None:
+        return
+
+    virtualenv = session.env.get("VIRTUAL_ENV")
+    if virtualenv is None:
+        return
+
+    hookdir = Path(".git") / "hooks"
+    if not hookdir.is_dir():
+        return
+
+    for hook in hookdir.iterdir():
+        if hook.name.endswith(".sample") or not hook.is_file():
+            continue
+
+        text = hook.read_text()
+        bindir = repr(session.bin)[1:-1]  # strip quotes
+        if not (
+            Path("A") == Path("a") and bindir.lower() in text.lower() or bindir in text
+        ):
+            continue
+
+        lines = text.splitlines()
+        if not (lines[0].startswith("#!") and "python" in lines[0].lower()):
+            continue
+
+        header = dedent(
+            f"""\
+            import os
+            os.environ["VIRTUAL_ENV"] = {virtualenv!r}
+            os.environ["PATH"] = os.pathsep.join((
+                {session.bin!r},
+                os.environ.get("PATH", ""),
+            ))
+            """
+        )
+
+        lines.insert(1, header)
+        hook.write_text("\n".join(lines))
+
+
+@nox.session(name="pre-commit", python="3.8")
+def precommit(session: Session) -> None:
+    """Lint using pre-commit."""
+    args = session.posargs or ["run", "--all-files", "--show-diff-on-failure"]
+    install(
+        session,
+        "black",
+        "flake8",
+        "flake8-bandit",
+        "flake8-bugbear",
+        "flake8-docstrings",
+        "pep8-naming",
+        "pre-commit",
+        "pre-commit-hooks",
+        "reorder-python-imports",
+    )
+    session.run("pre-commit", *args)
+    if args and args[0] == "install":
+        activate_virtualenv_in_precommit_hooks(session)
+
+
+@nox.session(python="3.8")
+def safety(session: Session) -> None:
+    """Scan dependencies for insecure packages."""
+    poetry = Poetry(session)
+    with poetry.export("--dev", "--without-hashes") as requirements:
+        install(session, "safety")
+        session.run("safety", "check", f"--file={requirements}", "--bare")
+
+
 @nox.session(python=python_versions)
 def tests(session: Session) -> None:
     """Run the test suite."""
@@ -118,15 +201,6 @@ def tests(session: Session) -> None:
         session.notify("coverage")
 
 
-@nox.session(python=python_versions)
-def lint(session):
-    """Lint using flake8."""
-    args = session.posargs or locations
-    install_package(session)
-    install(session, "flake8", "flake8-docstrings")
-    session.run("flake8", *args)
-
-
 @nox.session
 def coverage(session: Session) -> None:
     """Produce the coverage report."""
diff --git a/poetry.lock b/poetry.lock
index 144ed7eb..5fc886ba 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,3 +1,22 @@
+[[package]]
+category = "dev"
+description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+name = "appdirs"
+optional = false
+python-versions = "*"
+version = "1.4.4"
+
+[[package]]
+category = "dev"
+description = "Utilities for refactoring imports in python-like syntax."
+name = "aspy.refactor-imports"
+optional = false
+python-versions = ">=3.6.1"
+version = "2.1.1"
+
+[package.dependencies]
+cached-property = "*"
+
 [[package]]
 category = "dev"
 description = "Atomic file writes."
@@ -21,6 +40,49 @@ dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.int
 docs = ["sphinx", "zope.interface"]
 tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
 
+[[package]]
+category = "dev"
+description = "Security oriented static analyser for python code."
+name = "bandit"
+optional = false
+python-versions = "*"
+version = "1.6.2"
+
+[package.dependencies]
+GitPython = ">=1.0.1"
+PyYAML = ">=3.13"
+colorama = ">=0.3.9"
+six = ">=1.10.0"
+stevedore = ">=1.20.0"
+
+[[package]]
+category = "dev"
+description = "The uncompromising code formatter."
+name = "black"
+optional = false
+python-versions = ">=3.6"
+version = "19.10b0"
+
+[package.dependencies]
+appdirs = "*"
+attrs = ">=18.1.0"
+click = ">=6.5"
+pathspec = ">=0.6,<1"
+regex = "*"
+toml = ">=0.9.4"
+typed-ast = ">=1.4.0"
+
+[package.extras]
+d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]
+
+[[package]]
+category = "dev"
+description = "A decorator for caching properties in classes."
+name = "cached-property"
+optional = false
+python-versions = "*"
+version = "1.5.1"
+
 [[package]]
 category = "main"
 description = "Python package for providing Mozilla's CA Bundle."
@@ -29,6 +91,14 @@ optional = false
 python-versions = "*"
 version = "2020.6.20"
 
+[[package]]
+category = "dev"
+description = "Validate configuration and produce human readable error messages."
+name = "cfgv"
+optional = false
+python-versions = ">=3.6.1"
+version = "3.1.0"
+
 [[package]]
 category = "main"
 description = "Universal encoding detector for Python 2 and 3"
@@ -37,6 +107,14 @@ optional = false
 python-versions = "*"
 version = "3.0.4"
 
+[[package]]
+category = "dev"
+description = "Composable command line interface toolkit"
+name = "click"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "7.1.2"
+
 [[package]]
 category = "dev"
 description = "Hosted coverage reports for GitHub, Bitbucket and Gitlab"
@@ -52,7 +130,7 @@ requests = ">=2.7.9"
 [[package]]
 category = "dev"
 description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\""
+marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
 name = "colorama"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
@@ -74,6 +152,38 @@ version = "*"
 [package.extras]
 toml = ["toml"]
 
+[[package]]
+category = "dev"
+description = "Distribution utilities"
+name = "distlib"
+optional = false
+python-versions = "*"
+version = "0.3.1"
+
+[[package]]
+category = "dev"
+description = "A parser for Python dependency files"
+name = "dparse"
+optional = false
+python-versions = ">=3.5"
+version = "0.5.1"
+
+[package.dependencies]
+packaging = "*"
+pyyaml = "*"
+toml = "*"
+
+[package.extras]
+pipenv = ["pipenv"]
+
+[[package]]
+category = "dev"
+description = "A platform independent file lock."
+name = "filelock"
+optional = false
+python-versions = "*"
+version = "3.0.12"
+
 [[package]]
 category = "dev"
 description = "the modular source code checker: pep8 pyflakes and co"
@@ -91,6 +201,32 @@ pyflakes = ">=2.2.0,<2.3.0"
 python = "<3.8"
 version = "*"
 
+[[package]]
+category = "dev"
+description = "Automated security testing with bandit and flake8."
+name = "flake8-bandit"
+optional = false
+python-versions = "*"
+version = "2.1.2"
+
+[package.dependencies]
+bandit = "*"
+flake8 = "*"
+flake8-polyfill = "*"
+pycodestyle = "*"
+
+[[package]]
+category = "dev"
+description = "A plugin for flake8 finding likely bugs and design problems in your program. Contains warnings that don't belong in pyflakes and pycodestyle."
+name = "flake8-bugbear"
+optional = false
+python-versions = ">=3.6"
+version = "20.1.4"
+
+[package.dependencies]
+attrs = ">=19.2.0"
+flake8 = ">=3.0.0"
+
 [[package]]
 category = "dev"
 description = "Extension for flake8 which uses pydocstyle to check docstrings"
@@ -103,6 +239,50 @@ version = "1.5.0"
 flake8 = ">=3"
 pydocstyle = ">=2.1"
 
+[[package]]
+category = "dev"
+description = "Polyfill package for Flake8 plugins"
+name = "flake8-polyfill"
+optional = false
+python-versions = "*"
+version = "1.0.2"
+
+[package.dependencies]
+flake8 = "*"
+
+[[package]]
+category = "dev"
+description = "Git Object Database"
+name = "gitdb"
+optional = false
+python-versions = ">=3.4"
+version = "4.0.5"
+
+[package.dependencies]
+smmap = ">=3.0.1,<4"
+
+[[package]]
+category = "dev"
+description = "Python Git Library"
+name = "gitpython"
+optional = false
+python-versions = ">=3.4"
+version = "3.1.7"
+
+[package.dependencies]
+gitdb = ">=4.0.1,<5"
+
+[[package]]
+category = "dev"
+description = "File identification library for Python"
+name = "identify"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+version = "1.4.25"
+
+[package.extras]
+license = ["editdistance"]
+
 [[package]]
 category = "main"
 description = "Internationalized Domain Names in Applications (IDNA)"
@@ -127,6 +307,23 @@ zipp = ">=0.5"
 docs = ["sphinx", "rst.linker"]
 testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
 
+[[package]]
+category = "dev"
+description = "Read resources from Python packages"
+marker = "python_version < \"3.7\""
+name = "importlib-resources"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "3.0.0"
+
+[package.dependencies]
+[package.dependencies.zipp]
+python = "<3.8"
+version = ">=0.4"
+
+[package.extras]
+docs = ["sphinx", "rst.linker", "jaraco.packaging"]
+
 [[package]]
 category = "dev"
 description = "McCabe checker, plugin for flake8"
@@ -143,6 +340,14 @@ optional = false
 python-versions = ">=3.5"
 version = "8.4.0"
 
+[[package]]
+category = "dev"
+description = "Node.js virtual environment builder"
+name = "nodeenv"
+optional = false
+python-versions = "*"
+version = "1.4.0"
+
 [[package]]
 category = "dev"
 description = "Core utilities for Python packages"
@@ -155,6 +360,33 @@ version = "20.4"
 pyparsing = ">=2.0.2"
 six = "*"
 
+[[package]]
+category = "dev"
+description = "Utility library for gitignore style pattern matching of file paths."
+name = "pathspec"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "0.8.0"
+
+[[package]]
+category = "dev"
+description = "Python Build Reasonableness"
+name = "pbr"
+optional = false
+python-versions = "*"
+version = "5.4.5"
+
+[[package]]
+category = "dev"
+description = "Check PEP-8 naming conventions, plugin for flake8"
+name = "pep8-naming"
+optional = false
+python-versions = "*"
+version = "0.11.1"
+
+[package.dependencies]
+flake8-polyfill = ">=1.0.2,<2"
+
 [[package]]
 category = "dev"
 description = "plugin and hook calling mechanisms for python"
@@ -171,6 +403,42 @@ version = ">=0.12"
 [package.extras]
 dev = ["pre-commit", "tox"]
 
+[[package]]
+category = "dev"
+description = "A framework for managing and maintaining multi-language pre-commit hooks."
+name = "pre-commit"
+optional = false
+python-versions = ">=3.6.1"
+version = "2.6.0"
+
+[package.dependencies]
+cfgv = ">=2.0.0"
+identify = ">=1.0.0"
+nodeenv = ">=0.11.1"
+pyyaml = ">=5.1"
+toml = "*"
+virtualenv = ">=20.0.8"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = "*"
+
+[package.dependencies.importlib-resources]
+python = "<3.7"
+version = "*"
+
+[[package]]
+category = "dev"
+description = "Some out-of-the-box hooks for pre-commit."
+name = "pre-commit-hooks"
+optional = false
+python-versions = ">=3.6.1"
+version = "3.1.0"
+
+[package.dependencies]
+"ruamel.yaml" = ">=0.15"
+toml = "*"
+
 [[package]]
 category = "dev"
 description = "library with cross-python path, ini-parsing, io, code, log facilities"
@@ -263,6 +531,33 @@ optional = false
 python-versions = "*"
 version = "2020.1"
 
+[[package]]
+category = "dev"
+description = "YAML parser and emitter for Python"
+name = "pyyaml"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "5.3.1"
+
+[[package]]
+category = "dev"
+description = "Alternative regular expression module, to replace re."
+name = "regex"
+optional = false
+python-versions = "*"
+version = "2020.7.14"
+
+[[package]]
+category = "dev"
+description = "Tool for reordering python imports"
+name = "reorder-python-imports"
+optional = false
+python-versions = ">=3.6.1"
+version = "2.3.4"
+
+[package.dependencies]
+"aspy.refactor-imports" = ">=2.1.0"
+
 [[package]]
 category = "main"
 description = "Python HTTP for Humans."
@@ -297,6 +592,47 @@ six = "*"
 fixture = ["fixtures"]
 test = ["fixtures", "mock", "purl", "pytest", "sphinx", "testrepository (>=0.0.18)", "testtools"]
 
+[[package]]
+category = "dev"
+description = "ruamel.yaml is a YAML parser/emitter that supports roundtrip preservation of comments, seq/map flow style, and map key order"
+name = "ruamel.yaml"
+optional = false
+python-versions = "*"
+version = "0.16.10"
+
+[package.dependencies]
+[package.dependencies."ruamel.yaml.clib"]
+python = "<3.9"
+version = ">=0.1.2"
+
+[package.extras]
+docs = ["ryd"]
+jinja2 = ["ruamel.yaml.jinja2 (>=0.2)"]
+
+[[package]]
+category = "dev"
+description = "C version of reader, parser and emitter for ruamel.yaml derived from libyaml"
+marker = "platform_python_implementation == \"CPython\" and python_version < \"3.9\""
+name = "ruamel.yaml.clib"
+optional = false
+python-versions = "*"
+version = "0.2.0"
+
+[[package]]
+category = "dev"
+description = "Checks installed dependencies for known vulnerabilities."
+name = "safety"
+optional = false
+python-versions = ">=3.5"
+version = "1.9.0"
+
+[package.dependencies]
+Click = ">=6.0"
+dparse = ">=0.5.1"
+packaging = "*"
+requests = "*"
+setuptools = "*"
+
 [[package]]
 category = "dev"
 description = "Python 2 and 3 compatibility utilities"
@@ -305,6 +641,14 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 version = "1.15.0"
 
+[[package]]
+category = "dev"
+description = "A pure Python implementation of a sliding window memory map manager"
+name = "smmap"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "3.0.4"
+
 [[package]]
 category = "dev"
 description = "This package provides 26 stemmers for 25 languages generated from Snowball algorithms."
@@ -313,6 +657,21 @@ optional = false
 python-versions = "*"
 version = "2.0.0"
 
+[[package]]
+category = "dev"
+description = "Manage dynamic plugins for Python applications"
+name = "stevedore"
+optional = false
+python-versions = ">=3.6"
+version = "3.2.0"
+
+[package.dependencies]
+pbr = ">=2.0.0,<2.1.0 || >2.1.0"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=1.7.0"
+
 [[package]]
 category = "dev"
 description = "Python Library for Tom's Obvious, Minimal Language"
@@ -321,6 +680,14 @@ optional = false
 python-versions = "*"
 version = "0.10.1"
 
+[[package]]
+category = "dev"
+description = "a fork of Python 2 and 3 ast modules with type comment support"
+name = "typed-ast"
+optional = false
+python-versions = "*"
+version = "1.4.1"
+
 [[package]]
 category = "main"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
@@ -334,6 +701,32 @@ brotli = ["brotlipy (>=0.6.0)"]
 secure = ["certifi", "cryptography (>=1.3.4)", "idna (>=2.0.0)", "pyOpenSSL (>=0.14)", "ipaddress"]
 socks = ["PySocks (>=1.5.6,<1.5.7 || >1.5.7,<2.0)"]
 
+[[package]]
+category = "dev"
+description = "Virtual Python Environment builder"
+name = "virtualenv"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
+version = "20.0.28"
+
+[package.dependencies]
+appdirs = ">=1.4.3,<2"
+distlib = ">=0.3.1,<1"
+filelock = ">=3.0.0,<4"
+six = ">=1.9.0,<2"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12,<2"
+
+[package.dependencies.importlib-resources]
+python = "<3.7"
+version = ">=1.0"
+
+[package.extras]
+docs = ["proselint (>=0.10.2)", "sphinx (>=3)", "sphinx-argparse (>=0.2.5)", "sphinx-rtd-theme (>=0.4.3)", "towncrier (>=19.9.0rc1)"]
+testing = ["coverage (>=5)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "pytest-xdist (>=1.31.0)", "packaging (>=20.0)", "xonsh (>=0.9.16)"]
+
 [[package]]
 category = "dev"
 description = "Measures the displayed width of unicode strings in a terminal"
@@ -356,10 +749,18 @@ docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
 testing = ["jaraco.itertools", "func-timeout"]
 
 [metadata]
-content-hash = "b2d2c9cdca0ee4823df524bd87b755788dde849df30ef7c366f6bf68a124e5bf"
-python-versions = "^3.6"
+content-hash = "c57b5c4cde2414b4374c41059dfcc1c2a3c23cb58bc5e36a888ec0fa2ebc6705"
+python-versions = "^3.6.1"
 
 [metadata.files]
+appdirs = [
+    {file = "appdirs-1.4.4-py2.py3-none-any.whl", hash = "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"},
+    {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
+]
+"aspy.refactor-imports" = [
+    {file = "aspy.refactor_imports-2.1.1-py2.py3-none-any.whl", hash = "sha256:9df76bf19ef81620068b785a386740ab3c8939fcbdcebf20c4a4e0057230d782"},
+    {file = "aspy.refactor_imports-2.1.1.tar.gz", hash = "sha256:eec8d1a73bedf64ffb8b589ad919a030c1fb14acf7d1ce0ab192f6eedae895c5"},
+]
 atomicwrites = [
     {file = "atomicwrites-1.4.0-py2.py3-none-any.whl", hash = "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197"},
     {file = "atomicwrites-1.4.0.tar.gz", hash = "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"},
@@ -368,14 +769,34 @@ attrs = [
     {file = "attrs-19.3.0-py2.py3-none-any.whl", hash = "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c"},
     {file = "attrs-19.3.0.tar.gz", hash = "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"},
 ]
+bandit = [
+    {file = "bandit-1.6.2-py2.py3-none-any.whl", hash = "sha256:336620e220cf2d3115877685e264477ff9d9abaeb0afe3dc7264f55fa17a3952"},
+    {file = "bandit-1.6.2.tar.gz", hash = "sha256:41e75315853507aa145d62a78a2a6c5e3240fe14ee7c601459d0df9418196065"},
+]
+black = [
+    {file = "black-19.10b0-py36-none-any.whl", hash = "sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b"},
+    {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
+]
+cached-property = [
+    {file = "cached-property-1.5.1.tar.gz", hash = "sha256:9217a59f14a5682da7c4b8829deadbfc194ac22e9908ccf7c8820234e80a1504"},
+    {file = "cached_property-1.5.1-py2.py3-none-any.whl", hash = "sha256:3a026f1a54135677e7da5ce819b0c690f156f37976f3e30c5430740725203d7f"},
+]
 certifi = [
     {file = "certifi-2020.6.20-py2.py3-none-any.whl", hash = "sha256:8fc0819f1f30ba15bdb34cceffb9ef04d99f420f68eb75d901e9560b8749fc41"},
     {file = "certifi-2020.6.20.tar.gz", hash = "sha256:5930595817496dd21bb8dc35dad090f1c2cd0adfaf21204bf6732ca5d8ee34d3"},
 ]
+cfgv = [
+    {file = "cfgv-3.1.0-py2.py3-none-any.whl", hash = "sha256:1ccf53320421aeeb915275a196e23b3b8ae87dea8ac6698b1638001d4a486d53"},
+    {file = "cfgv-3.1.0.tar.gz", hash = "sha256:c8e8f552ffcc6194f4e18dd4f68d9aef0c0d58ae7e7be8c82bee3c5e9edfa513"},
+]
 chardet = [
     {file = "chardet-3.0.4-py2.py3-none-any.whl", hash = "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"},
     {file = "chardet-3.0.4.tar.gz", hash = "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"},
 ]
+click = [
+    {file = "click-7.1.2-py2.py3-none-any.whl", hash = "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"},
+    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
+]
 codecov = [
     {file = "codecov-2.1.8-py2.py3-none-any.whl", hash = "sha256:65e8a8008e43eb45a9404bf68f8d4a60d36de3827ef2287971c94940128eba1e"},
     {file = "codecov-2.1.8-py3.8.egg", hash = "sha256:fa7985ac6a3886cf68e3420ee1b5eb4ed30c4bdceec0f332d17ab69f545fbc90"},
@@ -421,14 +842,49 @@ coverage = [
     {file = "coverage-5.2.1-cp39-cp39-win_amd64.whl", hash = "sha256:b8f58c7db64d8f27078cbf2a4391af6aa4e4767cc08b37555c4ae064b8558d9b"},
     {file = "coverage-5.2.1.tar.gz", hash = "sha256:a34cb28e0747ea15e82d13e14de606747e9e484fb28d63c999483f5d5188e89b"},
 ]
+distlib = [
+    {file = "distlib-0.3.1-py2.py3-none-any.whl", hash = "sha256:8c09de2c67b3e7deef7184574fc060ab8a793e7adbb183d942c389c8b13c52fb"},
+    {file = "distlib-0.3.1.zip", hash = "sha256:edf6116872c863e1aa9d5bb7cb5e05a022c519a4594dc703843343a9ddd9bff1"},
+]
+dparse = [
+    {file = "dparse-0.5.1-py3-none-any.whl", hash = "sha256:e953a25e44ebb60a5c6efc2add4420c177f1d8404509da88da9729202f306994"},
+    {file = "dparse-0.5.1.tar.gz", hash = "sha256:a1b5f169102e1c894f9a7d5ccf6f9402a836a5d24be80a986c7ce9eaed78f367"},
+]
+filelock = [
+    {file = "filelock-3.0.12-py3-none-any.whl", hash = "sha256:929b7d63ec5b7d6b71b0fa5ac14e030b3f70b75747cef1b10da9b879fef15836"},
+    {file = "filelock-3.0.12.tar.gz", hash = "sha256:18d82244ee114f543149c66a6e0c14e9c4f8a1044b5cdaadd0f82159d6a6ff59"},
+]
 flake8 = [
     {file = "flake8-3.8.3-py2.py3-none-any.whl", hash = "sha256:15e351d19611c887e482fb960eae4d44845013cc142d42896e9862f775d8cf5c"},
     {file = "flake8-3.8.3.tar.gz", hash = "sha256:f04b9fcbac03b0a3e58c0ab3a0ecc462e023a9faf046d57794184028123aa208"},
 ]
+flake8-bandit = [
+    {file = "flake8_bandit-2.1.2.tar.gz", hash = "sha256:687fc8da2e4a239b206af2e54a90093572a60d0954f3054e23690739b0b0de3b"},
+]
+flake8-bugbear = [
+    {file = "flake8-bugbear-20.1.4.tar.gz", hash = "sha256:bd02e4b009fb153fe6072c31c52aeab5b133d508095befb2ffcf3b41c4823162"},
+    {file = "flake8_bugbear-20.1.4-py36.py37.py38-none-any.whl", hash = "sha256:a3ddc03ec28ba2296fc6f89444d1c946a6b76460f859795b35b77d4920a51b63"},
+]
 flake8-docstrings = [
     {file = "flake8-docstrings-1.5.0.tar.gz", hash = "sha256:3d5a31c7ec6b7367ea6506a87ec293b94a0a46c0bce2bb4975b7f1d09b6f3717"},
     {file = "flake8_docstrings-1.5.0-py2.py3-none-any.whl", hash = "sha256:a256ba91bc52307bef1de59e2a009c3cf61c3d0952dbe035d6ff7208940c2edc"},
 ]
+flake8-polyfill = [
+    {file = "flake8-polyfill-1.0.2.tar.gz", hash = "sha256:e44b087597f6da52ec6393a709e7108b2905317d0c0b744cdca6208e670d8eda"},
+    {file = "flake8_polyfill-1.0.2-py2.py3-none-any.whl", hash = "sha256:12be6a34ee3ab795b19ca73505e7b55826d5f6ad7230d31b18e106400169b9e9"},
+]
+gitdb = [
+    {file = "gitdb-4.0.5-py3-none-any.whl", hash = "sha256:91f36bfb1ab7949b3b40e23736db18231bf7593edada2ba5c3a174a7b23657ac"},
+    {file = "gitdb-4.0.5.tar.gz", hash = "sha256:c9e1f2d0db7ddb9a704c2a0217be31214e91a4fe1dea1efad19ae42ba0c285c9"},
+]
+gitpython = [
+    {file = "GitPython-3.1.7-py3-none-any.whl", hash = "sha256:fa3b92da728a457dd75d62bb5f3eb2816d99a7fe6c67398e260637a40e3fafb5"},
+    {file = "GitPython-3.1.7.tar.gz", hash = "sha256:2db287d71a284e22e5c2846042d0602465c7434d910406990d5b74df4afb0858"},
+]
+identify = [
+    {file = "identify-1.4.25-py2.py3-none-any.whl", hash = "sha256:ccd88716b890ecbe10920659450a635d2d25de499b9a638525a48b48261d989b"},
+    {file = "identify-1.4.25.tar.gz", hash = "sha256:110ed090fec6bce1aabe3c72d9258a9de82207adeaa5a05cd75c635880312f9a"},
+]
 idna = [
     {file = "idna-2.10-py2.py3-none-any.whl", hash = "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"},
     {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
@@ -437,6 +893,10 @@ importlib-metadata = [
     {file = "importlib_metadata-1.7.0-py2.py3-none-any.whl", hash = "sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070"},
     {file = "importlib_metadata-1.7.0.tar.gz", hash = "sha256:90bb658cdbbf6d1735b6341ce708fc7024a3e14e99ffdc5783edea9f9b077f83"},
 ]
+importlib-resources = [
+    {file = "importlib_resources-3.0.0-py2.py3-none-any.whl", hash = "sha256:d028f66b66c0d5732dae86ba4276999855e162a749c92620a38c1d779ed138a7"},
+    {file = "importlib_resources-3.0.0.tar.gz", hash = "sha256:19f745a6eca188b490b1428c8d1d4a0d2368759f32370ea8fb89cad2ab1106c3"},
+]
 mccabe = [
     {file = "mccabe-0.6.1-py2.py3-none-any.whl", hash = "sha256:ab8a6258860da4b6677da4bd2fe5dc2c659cff31b3ee4f7f5d64e79735b80d42"},
     {file = "mccabe-0.6.1.tar.gz", hash = "sha256:dd8d182285a0fe56bace7f45b5e7d1a6ebcbf524e8f3bd87eb0f125271b8831f"},
@@ -445,14 +905,37 @@ more-itertools = [
     {file = "more-itertools-8.4.0.tar.gz", hash = "sha256:68c70cc7167bdf5c7c9d8f6954a7837089c6a36bf565383919bb595efb8a17e5"},
     {file = "more_itertools-8.4.0-py3-none-any.whl", hash = "sha256:b78134b2063dd214000685165d81c154522c3ee0a1c0d4d113c80361c234c5a2"},
 ]
+nodeenv = [
+    {file = "nodeenv-1.4.0-py2.py3-none-any.whl", hash = "sha256:4b0b77afa3ba9b54f4b6396e60b0c83f59eaeb2d63dc3cc7a70f7f4af96c82bc"},
+]
 packaging = [
     {file = "packaging-20.4-py2.py3-none-any.whl", hash = "sha256:998416ba6962ae7fbd6596850b80e17859a5753ba17c32284f67bfff33784181"},
     {file = "packaging-20.4.tar.gz", hash = "sha256:4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8"},
 ]
+pathspec = [
+    {file = "pathspec-0.8.0-py2.py3-none-any.whl", hash = "sha256:7d91249d21749788d07a2d0f94147accd8f845507400749ea19c1ec9054a12b0"},
+    {file = "pathspec-0.8.0.tar.gz", hash = "sha256:da45173eb3a6f2a5a487efba21f050af2b41948be6ab52b6a1e3ff22bb8b7061"},
+]
+pbr = [
+    {file = "pbr-5.4.5-py2.py3-none-any.whl", hash = "sha256:579170e23f8e0c2f24b0de612f71f648eccb79fb1322c814ae6b3c07b5ba23e8"},
+    {file = "pbr-5.4.5.tar.gz", hash = "sha256:07f558fece33b05caf857474a366dfcc00562bca13dd8b47b2b3e22d9f9bf55c"},
+]
+pep8-naming = [
+    {file = "pep8-naming-0.11.1.tar.gz", hash = "sha256:a1dd47dd243adfe8a83616e27cf03164960b507530f155db94e10b36a6cd6724"},
+    {file = "pep8_naming-0.11.1-py2.py3-none-any.whl", hash = "sha256:f43bfe3eea7e0d73e8b5d07d6407ab47f2476ccaeff6937c84275cd30b016738"},
+]
 pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
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 ]
+virtualenv = [
+    {file = "virtualenv-20.0.28-py2.py3-none-any.whl", hash = "sha256:8f582a030156282a9ee9d319984b759a232b07f86048c1d6a9e394afa44e78c8"},
+    {file = "virtualenv-20.0.28.tar.gz", hash = "sha256:688a61d7976d82b92f7906c367e83bb4b3f0af96f8f75bfcd3da95608fe8ac6c"},
+]
 wcwidth = [
     {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
     {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
diff --git a/pyproject.toml b/pyproject.toml
index e105d0c5..11ced4d1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 
 
 [tool.poetry.dependencies]
-python = "^3.6"
+python = "^3.6.1"
 requests = "^2.24.0"
 pytz = "^2020.1"
 
@@ -35,6 +35,14 @@ coverage = {version = "^5.2.1", extras = ["toml"]}
 flake8 = "^3.8.3"
 flake8-docstrings = "^1.5.0"
 codecov = "^2.1.8"
+pre-commit = "^2.6.0"
+pre-commit-hooks = "^3.1.0"
+black = "^19.10b0"
+reorder_python_imports = "^2.3.4"
+flake8-bugbear = "^20.1.4"
+flake8-bandit = "^2.1.2"
+safety = "^1.9.0"
+pep8-naming = "^0.11.1"
 
 [tool.coverage.paths]
 source = ["src", "*/site-packages"]
@@ -51,4 +59,3 @@ fail_under = 100
 [build-system]
 requires = ["poetry>=0.12"]
 build-backend = "poetry.masonry.api"
-
diff --git a/src/meteofrance/client.py b/src/meteofrance/client.py
index 5312e2b7..490180dd 100644
--- a/src/meteofrance/client.py
+++ b/src/meteofrance/client.py
@@ -1,11 +1,19 @@
 # -*- coding: utf-8 -*-
 """Météo-France weather forecast python API."""
-
 from typing import List
 
-from .const import COASTAL_DEPARTMENT_LIST, METEOFRANCE_API_TOKEN, METEOFRANCE_API_URL
-from .model import CurrentPhenomenons, Forecast, Full, PictureOfTheDay, Place, Rain
-from .session import MeteoFranceSession, MeteoFranceWSSession, MeteoNetSession
+from .const import COASTAL_DEPARTMENT_LIST
+from .const import METEOFRANCE_API_TOKEN
+from .const import METEOFRANCE_API_URL
+from .model import CurrentPhenomenons
+from .model import Forecast
+from .model import Full
+from .model import PictureOfTheDay
+from .model import Place
+from .model import Rain
+from .session import MeteoFranceSession
+from .session import MeteoFranceWSSession
+from .session import MeteoNetSession
 
 # TODO: http://webservice.meteofrance.com/observation
 # TODO: investigate bulletincote, montagne, etc...
diff --git a/src/meteofrance/helpers.py b/src/meteofrance/helpers.py
index e3c857ed..6ba87bc9 100644
--- a/src/meteofrance/helpers.py
+++ b/src/meteofrance/helpers.py
@@ -1,19 +1,18 @@
 # -*- coding: utf-8 -*-
 """Météo-France helpers."""
-
 import math
 from datetime import datetime
-from typing import List, Tuple
+from typing import List
+from typing import Tuple
 
-from pytz import timezone, utc
+from pytz import timezone
+from pytz import utc
 
-from .const import (
-    ALERT_COLOR_LIST_EN,
-    ALERT_COLOR_LIST_FR,
-    ALERT_TYPE_LIST_EN,
-    ALERT_TYPE_LIST_FR,
-    COASTAL_DEPARTMENT_LIST,
-)
+from .const import ALERT_COLOR_LIST_EN
+from .const import ALERT_COLOR_LIST_FR
+from .const import ALERT_TYPE_LIST_EN
+from .const import ALERT_TYPE_LIST_FR
+from .const import COASTAL_DEPARTMENT_LIST
 from .model.place import Place
 
 
@@ -68,7 +67,7 @@ def haversine(coord1: Tuple[float, float], coord2: Tuple[float, float]) -> float
     coord1 and coord2 are tuple with latitude and longitude in degrees.
     source: https://janakiev.com/blog/gps-points-distance-python/
     """
-    R = 6372800  # Earth radius in meters
+    radius = 6372800  # Earth radius in meters
     lat1, lon1 = coord1
     lat2, lon2 = coord2
     phi1, phi2 = math.radians(lat1), math.radians(lat2)
@@ -80,7 +79,7 @@ def haversine(coord1: Tuple[float, float], coord2: Tuple[float, float]) -> float
         + math.cos(phi1) * math.cos(phi2) * math.sin(dlambda / 2) ** 2
     )
 
-    return 2 * R * math.atan2(math.sqrt(a), math.sqrt(1 - a))
+    return 2 * radius * math.atan2(math.sqrt(a), math.sqrt(1 - a))
 
 
 def sort_places_versus_distance_from_coordinates(
diff --git a/src/meteofrance/model/__init__.py b/src/meteofrance/model/__init__.py
index 76f1d4d0..6dbc643b 100644
--- a/src/meteofrance/model/__init__.py
+++ b/src/meteofrance/model/__init__.py
@@ -3,6 +3,7 @@
 from .picture_of_the_day import PictureOfTheDay
 from .place import Place
 from .rain import Rain
-from .warning import CurrentPhenomenons, Full
+from .warning import CurrentPhenomenons
+from .warning import Full
 
 __all__ = ["Forecast", "Place", "PictureOfTheDay", "Rain", "CurrentPhenomenons", "Full"]
diff --git a/src/meteofrance/model/forecast.py b/src/meteofrance/model/forecast.py
index b92cb24d..1030d017 100644
--- a/src/meteofrance/model/forecast.py
+++ b/src/meteofrance/model/forecast.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 """Météo-France weather forecast python API. Forecast class."""
-
 from datetime import datetime
 
 from pytz import utc
diff --git a/src/meteofrance/model/rain.py b/src/meteofrance/model/rain.py
index afcf9739..b28befc1 100644
--- a/src/meteofrance/model/rain.py
+++ b/src/meteofrance/model/rain.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 """Météo-France weather forecast python API. Rain class."""
-
 from datetime import datetime
 from typing import Optional
 
diff --git a/src/meteofrance/session.py b/src/meteofrance/session.py
index 853c9564..e3e8dc21 100644
--- a/src/meteofrance/session.py
+++ b/src/meteofrance/session.py
@@ -1,14 +1,12 @@
 # -*- coding: utf-8 -*-
 """Météo-France weather forecast python API."""
+from requests import Response
+from requests import Session
 
-from requests import Response, Session
-
-from .const import (
-    METEOFRANCE_API_TOKEN,
-    METEOFRANCE_API_URL,
-    METEOFRANCE_WS_API_URL,
-    METEONET_API_URL,
-)
+from .const import METEOFRANCE_API_TOKEN
+from .const import METEOFRANCE_API_URL
+from .const import METEOFRANCE_WS_API_URL
+from .const import METEONET_API_URL
 
 
 class MeteoFranceSession(Session):
diff --git a/tests/test_exception.py b/tests/test_exception.py
index 67507fe3..2c045350 100644
--- a/tests/test_exception.py
+++ b/tests/test_exception.py
@@ -1,6 +1,5 @@
 # coding: utf-8
 """Tests for meteofrance module. Exception classes."""
-
 import pytest
 
 from meteofrance.exceptions import MeteoFranceException
diff --git a/tests/test_forecast.py b/tests/test_forecast.py
index a81f72fc..6041ea12 100644
--- a/tests/test_forecast.py
+++ b/tests/test_forecast.py
@@ -3,11 +3,10 @@
 import time
 from datetime import datetime
 
+from .const import MOUNTAIN_CITY
 from meteofrance.client import MeteoFranceClient
 from meteofrance.model import Place
 
-from .const import MOUNTAIN_CITY
-
 
 def test_forecast_france():
     """Test weather forecast results from API."""
diff --git a/tests/test_helpers.py b/tests/test_helpers.py
index 5a6ca669..e47d4c18 100644
--- a/tests/test_helpers.py
+++ b/tests/test_helpers.py
@@ -1,15 +1,12 @@
 # coding: utf-8
 """Tests for meteofrance module. Helpers."""
-
 import pytest
 
-from meteofrance.helpers import (
-    get_phenomenon_name_from_indice,
-    get_warning_text_status_from_indice_color,
-    is_coastal_department,
-    readeable_phenomenoms_dict,
-    sort_places_versus_distance_from_coordinates,
-)
+from meteofrance.helpers import get_phenomenon_name_from_indice
+from meteofrance.helpers import get_warning_text_status_from_indice_color
+from meteofrance.helpers import is_coastal_department
+from meteofrance.helpers import readeable_phenomenoms_dict
+from meteofrance.helpers import sort_places_versus_distance_from_coordinates
 from meteofrance.model import Place
 
 
diff --git a/tests/test_picture_of_the_day.py b/tests/test_picture_of_the_day.py
index eeef4d49..5c35669f 100644
--- a/tests/test_picture_of_the_day.py
+++ b/tests/test_picture_of_the_day.py
@@ -1,6 +1,5 @@
 # coding: utf-8
 """Tests Météo-France module. PictureOfTheDay class."""
-
 from meteofrance.client import MeteoFranceClient
 
 
diff --git a/tests/test_place.py b/tests/test_place.py
index 27457ef1..53d85695 100644
--- a/tests/test_place.py
+++ b/tests/test_place.py
@@ -1,6 +1,5 @@
 # coding: utf-8
 """Tests Météo-France module. Place class."""
-
 from meteofrance.client import MeteoFranceClient
 
 
diff --git a/tests/test_rain.py b/tests/test_rain.py
index 389a21b3..e09ce9c6 100644
--- a/tests/test_rain.py
+++ b/tests/test_rain.py
@@ -1,6 +1,5 @@
 # coding: utf-8
 """Tests Météo-France module. Forecast class."""
-
 import pytest
 import requests