fix pylint deps warnings

Signed-off-by: Aleksei Stepanov <[email protected]>

(cherry picked from commit b8f81ec)
Signed-off-by: Aleksei Stepanov <[email protected]>

Author: penguinolog

.travis.yml

@@ -68,7 +68,7 @@ jobs:
     install:
     - *upgrade_python_toolset
     - *install_deps
-    - pip install --upgrade "pylint >= 2.2"
+    - pip install --upgrade "pylint >= 2.3" isort[pyproject,requirements]
     script:
     - pylint threaded
   - <<: *static_analysis

azure-pipelines.yml

@@ -16,7 +16,7 @@ jobs:
         python -m pip install --upgrade pip
         pip install -U setuptools
         pip install -r requirements.txt
-        pip install -U pytest pylint pytest-sugar pytest-flake8 flake8-bugbear flake8-docstrings
+        pip install -U pytest pytest-sugar pytest-flake8 flake8-bugbear flake8-docstrings
       displayName: 'Install dependencies'
 
     - script: |
@@ -43,7 +43,7 @@ jobs:
         python -m pip install --upgrade pip
         pip install -U setuptools
         pip install -r requirements.txt
-        pip install -U pytest pylint pytest-pylint pytest-sugar
+        pip install -U pytest pylint pytest-pylint pytest-sugar isort[pyproject,requirements]
       displayName: 'Install dependencies'
 
     - script: |

tox.ini

@@ -77,7 +77,8 @@ commands = pip install ./ -vvv -U
 
 [testenv:pylint]
 deps =
-    pylint >= 2.2
+    pylint >= 2.3
+    isort[pyproject,requirements]
     -r{toxinidir}/CI_REQUIREMENTS.txt
 commands = pylint threaded