Added optional requirements for metadata amazon

Better logging of errors in metadata source files

cps/metadata_provider/amazon.py

@@ -19,7 +19,7 @@
 import concurrent.futures
 import requests
 from bs4 import BeautifulSoup as BS  # requirement
-# import lxml     #requirement for better speed
+
 try:
     import cchardet #optional for better speed
 except ImportError:

cps/search_metadata.py

@@ -49,8 +49,8 @@ for f in modules:
         try:
             importlib.import_module("cps.metadata_provider." + a)
             new_list.append(a)
-        except ImportError:
+        except ImportError as e:
-            log.error("Import error for metadata source: {}".format(a))
+            log.error("Import error for metadata source: {} - {}".format(a, e))
             pass
 
 

optional-requirements.txt

@@ -31,9 +31,11 @@ SQLAlchemy-Utils>=0.33.5,<0.39.0
 # metadata extraction
 rarfile>=2.7
 scholarly>=1.2.0,<1.6
-markdown2==2.4.2
+markdown2>=2.0.0,<2.5.0
-html2text==2020.1.16
+html2text>=2020.1.16,<2022.1.1
-python-dateutil==2.8.2
+python-dateutil>=2.1,<2.9.0
+beautifulsoup4>=4.0.1,<4.2.0
+cchardet>=2.0.0,<2.2.0
 
 # Comics
 natsort>=2.2.0,<8.1.0

setup.cfg

@@ -86,6 +86,11 @@ oauth =
 metadata = 
 	rarfile>=2.7
 	scholarly>=1.2.0,<1.6
+	markdown2>=2.0.0,<2.5.0
+	html2text>=2020.1.16,<2022.1.1
+	python-dateutil>=2.1,<2.9.0
+	beautifulsoup4>=4.0.1,<4.2.0
+	cchardet>=2.0.0,<2.2.0
 comics = 
 	natsort>=2.2.0,<8.1.0
 	comicapi>=2.2.0,<2.3.0