Removed Python 3.7 & 3.8 from tests, fixed PEP8 errors (#214)

* Update test.yml

* Update test.yml

* Update writeRobot.py

* Update importer.py

* Update importer.py

.github/workflows/test.yml

@@ -8,7 +8,7 @@ jobs:
   tests:
     strategy:
       matrix:
-        python: ['3.7', '3.8', '3.9', '3.10']
+        python: ['3.9', '3.10']
     runs-on: ubuntu-latest
     env:
       CI: 1

urdf2webots/importer.py

@@ -113,9 +113,9 @@ def convertUrdfContent(input, output=None, robotName=None, normal=False, boxColl
     else:
         urdfDirectory = os.getcwd()
 
-    if not type(initTranslation) == str or len(initTranslation.split()) != 3:
+    if not isinstance(initTranslation, str) or len(initTranslation.split()) != 3:
         sys.exit('--translation argument is not valid. It has to be of Type = str and contain 3 values.')
-    if not type(initRotation) == str or len(initRotation.split()) != 4:
+    if not isinstance(initRotation, str) or len(initRotation.split()) != 4:
         sys.exit('--rotation argument is not valid. It has to be of Type = str and contain 4 values.')
     if initPos is not None:
         try:

urdf2webots/writeRobot.py

@@ -27,7 +27,7 @@ def __init__(self):
 
     def __eq__(self, other):
         """To compare a RGB color with a float list."""
-        if type(other) == list:
+        if isinstance(other, list):
             return ((self.red, self.green, self.blue) == (other[0], other[1], other[2]))
         return ((self.red, self.green, self.blue) == (other.red, other.green, other.blue))