Updated the CI scripts, GitHub actions and Travis CI.

Author: shtaxxx

.github/workflows/main.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9]
+        python-version: [3.9, 3.10, 3.11]
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
@@ -37,8 +37,8 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install pytest pytest-pythonpath pyverilog numpy
+          pip install pytest pytest-pythonpath pytest-xdist pyverilog numpy
       # Run pytest
       - name: Test with pytest
         run: |
-          python -m pytest tests examples
+          python -m pytest -n auto tests examples

.travis.yml

@@ -3,9 +3,9 @@ language: python
 sudo: false
 
 python:
-  - 3.7
-  - 3.8
   - 3.9
+  - 3.10
+  - 3.11
 
 addons:
   apt:
@@ -14,7 +14,7 @@ addons:
     - verilator
 
 install:
-  - pip install pytest pytest-pythonpath pyverilog numpy
+  - pip install pytest pytest-pythonpath pytest-xdist pyverilog numpy
 
 script:
-  - python -m pytest tests examples
+  - python -m pytest -n auto tests examples