deprecate 3.5; refactor strs to f-strings

Author: luciano-renzi

.travis.yml

@@ -7,6 +7,10 @@
 - Added JSON as data source, internal data uses a Python code editor, test_data setting is deprecated [#225](https://github.com/golemhq/golem/issues/225)
 - Added 4 test hooks: before_test, before_each, after_each, after_test [#227](https://github.com/golemhq/golem/issues/227)
 
+### Deprecated
+
+- Python 3.5
+
 ## [0.10.1] - 2021-07-30
 
 ### Added

CHANGELOG.md

@@ -51,7 +51,7 @@ Tests can be written with code in Python, codeless using the web IDE, or both.
 
 ## Installation
 
-Golem works with Python 3.5+
+Golem works with Python 3.6+
 
 ```
 pip install golem-framework

README.md

@@ -6,7 +6,7 @@ In this guide let's see how Golem tests can be run in jenkins.
 ## Pre-requisites
 
 - Jenkins is installed.
-- Python 3.5+ is installed in the Jenkins machine.
+- Python 3.6+ is installed in the Jenkins machine.
 - A Golem directory with tests is stored in a git repository.
 
 ## Steps

docs/source/guides/run-from-jenkins.md

@@ -5,7 +5,7 @@ Installation
 
 ### Python
 
-Golem requires Python 3.5 or higher.
+Golem requires Python 3.6 or higher.
 
 **Windows**: