updated for travic-ci failing on 3.10

Author: deftio

.travis.yml

@@ -6,7 +6,7 @@ python:
   - "3.7" 
   - "3.8"
   - "3.9"
-  - "3.10"
+#  - "3.10.0"  # fails in travis-ci 
 
 # command to install dependencies
 before-install:
@@ -15,7 +15,7 @@ before-install:
 install: 
   #- "pip install -U pytest"
   #- "pip install 'coverage<4'"
-  - poetry add pytest pytest-cov coveralls
+  - poetry add pytest coveralls
   - poetry update
   - poetry build