Adjust backend coding style

Add line spacing, section comments, and import consistency

3 files changed, 17 insertions, 3 deletions

diff --git a/backend/tests/eol/test_download_imgs.py b/backend/tests/eol/test_download_imgs.py
index 975d1c7..4872ca3 100644
--- a/backend/tests/eol/test_download_imgs.py
+++ b/backend/tests/eol/test_download_imgs.py
@@ -1,6 +1,7 @@
 import unittest
 from unittest.mock import Mock, patch
-import tempfile, os
+import tempfile
+import os
 
 from tests.common import readTestFile, createTestDbTable
 from tol_data.eol.download_imgs import getEolIdsFromDb, downloadImgs
@@ -19,8 +20,10 @@ class TestGetEolIdsFromDb(unittest.TestCase):
 					('a second', 2),
 				}
 			)
+
 			# Run
 			eolIds = getEolIdsFromDb(dbFile)
+
 			# Check
 			self.assertEqual(eolIds, {1, 2})
 
@@ -30,6 +33,7 @@ class TestDownloadImgs(unittest.TestCase):
 		requestsGetMock.side_effect = lambda url: Mock(content=('img:' + url).encode())
 		with tempfile.TemporaryDirectory() as tempDir:
 			eolIds = {1, 2, 4}
+
 			# Create temp images-list db
 			imagesListDb = os.path.join(tempDir, 'images_list.db')
 			createTestDbTable(
@@ -48,10 +52,12 @@ class TestDownloadImgs(unittest.TestCase):
 					(30, 3, '', 'https://content.eol.org/3.png', 'cc-by', 'owner3'),
 				}
 			)
+
 			# Create temp output dir
 			with tempfile.TemporaryDirectory() as outDir:
 				# Run
 				downloadImgs(eolIds, imagesListDb, outDir)
+
 				# Check
 				expectedImgs1 = {
 					'1 10.jpg': 'img:https://content.eol.org/1.jpg',
diff --git a/backend/tests/eol/test_gen_images_list_db.py b/backend/tests/eol/test_gen_images_list_db.py
index ca9b495..c1c81f3 100644
--- a/backend/tests/eol/test_gen_images_list_db.py
+++ b/backend/tests/eol/test_gen_images_list_db.py
@@ -1,5 +1,6 @@
 import unittest
-import tempfile, os
+import tempfile
+import os
 
 from tests.common import createTestFile, readTestDbTable
 from tol_data.eol.gen_images_list_db import genData
@@ -17,9 +18,11 @@ class TestGenData(unittest.TestCase):
 			createTestFile(os.path.join(tempDir, 'imgs-2.csv'), (
 				'3,30,https://example.com/3/,https://content.eol.org/3.png,public,owner3\n'
 			))
+
 			# Run
 			dbFile = os.path.join(tempDir, 'imagesList.db')
 			genData(imageListsGlob, dbFile)
+
 			# Check
 			self.assertEqual(
 				readTestDbTable(
diff --git a/backend/tests/eol/test_review_imgs.py b/backend/tests/eol/test_review_imgs.py
index 49c09bb..21d4756 100644
--- a/backend/tests/eol/test_review_imgs.py
+++ b/backend/tests/eol/test_review_imgs.py
@@ -1,5 +1,7 @@
 import unittest
-import tempfile, os, shutil
+import tempfile
+import os
+import shutil
 
 from tests.common import createTestDbTable
 from tol_data.eol.review_imgs import reviewImgs
@@ -19,6 +21,7 @@ class TestReviewImgs(unittest.TestCase):
 			shutil.copy(AVOID_IMG, os.path.join(imgDir, '2 22.jpg'))
 			shutil.copy(AVOID_IMG, os.path.join(imgDir, '3 30.png'))
 			shutil.copy(AVOID_IMG, os.path.join(imgDir, '3 31.jpg'))
+
 			# Create temp extra-info db
 			extraInfoDb = os.path.join(tempDir, 'data.db')
 			createTestDbTable(
@@ -39,8 +42,10 @@ class TestReviewImgs(unittest.TestCase):
 					('two','II',1,'eol'),
 				}
 			)
+
 			# Run
 			outDir = os.path.join(tempDir, 'imgs')
 			reviewImgs(imgDir, outDir, extraInfoDb)
+
 			# Check
 			self.assertEqual(set(os.listdir(outDir)), {'1 10.jpg', '2 20.jpeg'})