diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 997fc850..e52bfb36 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.2.0
+current_version = 0.3.0
 commit = True
 message = Bumps version to {new_version}
 tag = False
diff --git a/Makefile b/Makefile
index 94c49d09..7a138a97 100644
--- a/Makefile
+++ b/Makefile
@@ -178,31 +178,32 @@ cfn/lint: | guard/program/cfn-lint
 ## Runs eclint against the project
 eclint/lint: | guard/program/eclint guard/program/git
 eclint/lint: HAS_UNTRACKED_CHANGES ?= $(shell cd $(PROJECT_ROOT) && git status -s)
-eclint/lint: ECLINT_FILES ?= git ls-files -z
+eclint/lint: ECLINT_FILES ?= $(shell git -C $(PROJECT_ROOT) ls-files -z | grep -zv ".bats" | xargs -0)
 eclint/lint:
 	@ echo "[$@]: Running eclint..."
 	cd $(PROJECT_ROOT) && \
 	[ -z "$(HAS_UNTRACKED_CHANGES)" ] || (echo "untracked changes detected!" && exit 1)
-	cd $(PROJECT_ROOT) && \
-	$(ECLINT_FILES) | grep -zv ".bats" | xargs -0 -I {} eclint check {}
+	eclint check $(ECLINT_FILES)
 	@ echo "[$@]: Project PASSED eclint test!"
 
-python/%: PYTHON_FILES ?= git ls-files --cached --others --exclude-standard '*.py'
+python/%: PYTHON_FILES ?= $(shell git -C $(PROJECT_ROOT) ls-files --cached --others --exclude-standard '*.py' | xargs --no-run-if-empty printf "$(PROJECT_ROOT)/%s ")
 ## Checks format and lints Python files.  Runs pylint on each individual
 ## file and uses a custom format for the lint messages.
 python/lint: | guard/program/pylint guard/program/black guard/program/git
 python/lint:
 	@ echo "[$@]: Linting Python files..."
-	$(PYTHON_FILES) | xargs black --check
-	$(PYTHON_FILES) | $(XARGS) -n1 pylint -rn -sn \
-		--msg-template="{path}:{line} [{symbol}] {msg}" {}
-	@ echo "[$@]: Python files PASSED lint test!"
+	black --check $(PYTHON_FILES)
+	for python_file in $(PYTHON_FILES); do \
+		pylint --msg-template="{path}:{line} [{symbol}] {msg}" \
+			-rn -sn $$python_file; \
+	done
+	echo "[$@]: Python files PASSED lint test!"
 
 ## Formats Python files.
 python/format: | guard/program/black guard/program/git
 python/format:
 	@ echo "[$@]: Formatting Python files..."
-	$(PYTHON_FILES) | xargs black
+	black $(PYTHON_FILES)
 	@ echo "[$@]: Successfully formatted Python files!"
 
 ## Lints terraform files
diff --git a/tests/make/eclint_lint_success.bats b/tests/make/eclint_lint_success.bats
index 3d98d82e..76a7a533 100644
--- a/tests/make/eclint_lint_success.bats
+++ b/tests/make/eclint_lint_success.bats
@@ -18,11 +18,11 @@ done
 
 git add "$TEST_DIR/."
 git commit -m 'eclint success testing'
-
 }
 
 @test "eclint/lint: success" {
-  run make eclint/lint
+  ECLINT_FILES=$(find "${TEST_DIR}" -type f | xargs echo)
+  run make eclint/lint ECLINT_FILES="${ECLINT_FILES}"
   [ "$status" -eq 0 ]
 }
 
diff --git a/tests/make/python_format_success.bats b/tests/make/python_format_success.bats
index 1575e9ef..b8e131b0 100644
--- a/tests/make/python_format_success.bats
+++ b/tests/make/python_format_success.bats
@@ -21,6 +21,10 @@ done
   run make python/format
   [ "$status" -eq 0 ]
   [[ "$output" == *"[python/format]: Successfully formatted Python files!"* ]]
+
+  run make python/format PYTHON_FILES="$TEST_DIR/nested/*.py"
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"1 file left unchanged"* ]]
 }
 
 function teardown() {