Migrated pypdf2 to the now active developed pypdf

cps/uploader.py

@@ -37,16 +37,22 @@ except (ImportError, RuntimeError) as e:
     use_generic_pdf_cover = True
 
 try:
-    from PyPDF2 import PdfReader
+    from PyPDF import PdfReader
     use_pdf_meta = True
 except ImportError as ex:
-    log.debug('PyPDF2 is recommended for best performance in metadata extracting from pdf files: %s', ex)
+    log.debug('PyPDF is recommended for best performance in metadata extracting from pdf files: %s', ex)
     try:
-        from PyPDF3 import PdfFileReader as PdfReader
+        from PyPDF2 import PdfReader
         use_pdf_meta = True
-    except ImportError as e:
-        log.debug('Cannot import PyPDF3/PyPDF2, extracting pdf metadata will not work: %s / %s', e)
-        use_pdf_meta = False
+    except ImportError as ex:
+        log.debug('PyPDF is recommended for best performance in metadata extracting from pdf files: %s', ex)
+        log.debug('PyPdf2 is also possible for metadata extracting from pdf files, but not recommended anymore')
+        try:
+            from PyPDF3 import PdfFileReader as PdfReader
+            use_pdf_meta = True
+        except ImportError as e:
+            log.debug('Cannot import PyPDF3/PyPDF2, extracting pdf metadata will not work: %s / %s', e)
+            use_pdf_meta = False
 
 try:
     from . import epub

requirements.txt

@@ -7,7 +7,7 @@ Flask-Principal>=0.3.2,<0.5.1
 backports_abc>=0.4
 Flask>=1.0.2,<2.2.0
 iso-639>=0.4.5,<0.5.0
-PyPDF2>=1.28,<3.1.0
+PyPDF>=3.0.0,<3.3.0
 pytz>=2016.10
 requests>=2.11.1,<2.28.0
 SQLAlchemy>=1.3.0,<1.5.0

setup.cfg

@@ -23,6 +23,7 @@ classifiers =
 	Programming Language :: Python :: 3.8
 	Programming Language :: Python :: 3.9
 	Programming Language :: Python :: 3.10
+    Programming Language :: Python :: 3.11
 	Operating System :: OS Independent
 keywords = 
 	calibre
@@ -46,7 +47,7 @@ install_requires =
 	backports_abc>=0.4
 	Flask>=1.0.2,<2.2.0
 	iso-639>=0.4.5,<0.5.0
-	PyPDF2>=1.28,<3.1.0
+	PyPDF>=3.0.0,<3.3.0
 	pytz>=2016.10
 	requests>=2.11.1,<2.28.0
 	SQLAlchemy>=1.3.0,<1.5.0