Drop Python 3.5 support

.github/dependabot.yml

@@ -9,10 +9,3 @@ updates:
     directory: "/" # Location of package manifests
     schedule:
       interval: "monthly"
-    ignore:
-      - dependency-name: "mock"
-        # mock 4 requires Python 3.6+
-        versions: [">=4"]
-      - dependency-name: "stomp.py"
-        # stomp.py 6 requires Python 3.6+
-        versions: [">=6"]

.travis.yml

@@ -2,7 +2,6 @@ language: python
 
 matrix:
   include:
-    - python: 3.5
     - python: 3.6
     - python: 3.7
     - python: 3.8

setup.py

@@ -13,7 +13,7 @@
     download_url="https://github.com/DiamondLightSource/python-workflows/releases",
     version="2.1",
     install_requires=["setuptools", "stomp.py"],
-    python_requires=">=3.5",
+    python_requires=">=3.6",
     packages=find_packages(),
     license="BSD",
     entry_points={
@@ -40,7 +40,6 @@
         "Development Status :: 5 - Production/Stable",
         "License :: OSI Approved :: BSD License",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.5",
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",

workflows/recipe/validate.py

@@ -33,21 +33,21 @@ def validate_recipe(json_filename):
         with open(json_filename) as f:
             recipe_text = f.read()
     except Exception:
-        logging.exception("Could not read recipe from {}".format(json_filename))
+        logging.exception(f"Could not read recipe from {json_filename}")
         raise
 
     # Turn it into a recipe and validate
     try:
         # Create a recipe object and validate it
         workflows.recipe.Recipe(recipe_text).validate()
     except json.JSONDecodeError as e:
-        logging.error("JSON error in recipe {}:\n{}".format(json_filename, e))
+        logging.error(f"JSON error in recipe {json_filename}:\n{e}")
         raise e
     except workflows.Error as e:
-        logging.error("Problem in recipe {}:\n{}".format(json_filename, e))
+        logging.error(f"Problem in recipe {json_filename}:\n{e}")
         raise e
     except Exception as e:
-        logging.error("Problem in recipe {}: {}".format(json_filename, e))
+        logging.error(f"Problem in recipe {json_filename}: {e}")
         raise e
 
 
@@ -70,7 +70,7 @@ def main():
     # Let the user know which files had errors (summary of previous output)
     # Otherwise exit silently
     if failed_files:
-        print("Errors found in the following recipes: {}".format(failed_files))
+        print(f"Errors found in the following recipes: {failed_files}")
         sys.exit(1)