Add 'examples' optional requirements to 'setup.py'

Author: SkypLabs

setup.py

@@ -67,10 +67,14 @@
     ext_modules=[yahdlc],
     python_requires=">=3.6, <4",
     extras_require={
+        "examples": [
+            "fysom",
+            "pyserial",
+        ],
         "tests": [
             "flake8",
             "pylint",
-            "tox"
+            "tox",
         ],
     },
 )

tox.ini

@@ -15,13 +15,17 @@ commands =
 
 [testenv:flake8]
 description = "Check code style & quality"
-deps = flake8
+deps =
+    flake8
+    .[examples]
 commands =
     {envpython} -m flake8 tests examples
 
 [testenv:pylint]
 description = "Check for programming errors"
-deps = pylint
+deps =
+    pylint
+    .[examples]
 commands =
     {envpython} -m pylint tests examples