Renamed constants, to make room for real constants module

ebook_converter/ebooks/metadata/book/base.py

@@ -1,7 +1,7 @@
 import copy, traceback
 
 from ebook_converter import prints
-from ebook_converter.constants import DEBUG
+from ebook_converter.constants_old import DEBUG
 from ebook_converter.ebooks.metadata.book import (SC_COPYABLE_FIELDS,
         SC_FIELDS_COPY_NOT_NULL, STANDARD_METADATA_FIELDS,
         TOP_LEVEL_IDENTIFIERS, ALL_METADATA_FIELDS)

ebook_converter/ebooks/metadata/book/json_codec.py

@@ -7,7 +7,7 @@ import json, traceback
 from datetime import datetime, time
 
 from ebook_converter.ebooks.metadata.book import SERIALIZABLE_FIELDS
-from ebook_converter.constants import filesystem_encoding, preferred_encoding
+from ebook_converter.constants_old import filesystem_encoding, preferred_encoding
 from ebook_converter.library.field_metadata import FieldMetadata
 from ebook_converter import isbytestring
 from ebook_converter.polyglot.builtins import as_bytes

ebook_converter/ebooks/metadata/meta.py

@@ -1,7 +1,7 @@
 import os, re, collections
 
 from ebook_converter.utils.config import prefs
-from ebook_converter.constants import filesystem_encoding
+from ebook_converter.constants_old import filesystem_encoding
 from ebook_converter.ebooks.metadata.opf2 import OPF
 from ebook_converter import isbytestring
 from ebook_converter.customize.ui import get_file_type_metadata, set_file_type_metadata

ebook_converter/ebooks/metadata/opf2.py

@@ -16,7 +16,8 @@ import uuid
 from lxml import etree
 
 from ebook_converter.ebooks import escape_xpath_attr
-from ebook_converter.constants import __appname__, __version__, filesystem_encoding
+from ebook_converter.constants_old import __appname__, __version__, \
+        filesystem_encoding
 from ebook_converter.ebooks.metadata.toc import TOC
 from ebook_converter.ebooks.metadata.utils import parse_opf, pretty_print_opf as _pretty_print
 from ebook_converter.ebooks.metadata import string_to_authors, MetaInformation, check_isbn

ebook_converter/ebooks/metadata/pdf.py

@@ -5,7 +5,7 @@ import os, subprocess, shutil, re
 from functools import partial
 
 from ebook_converter import prints
-from ebook_converter.constants import iswindows
+from ebook_converter.constants_old import iswindows
 from ebook_converter.ptempfile import TemporaryDirectory
 from ebook_converter.ebooks.metadata import (
     MetaInformation, string_to_authors, check_isbn, check_doi)

ebook_converter/ebooks/metadata/toc.py

@@ -8,7 +8,7 @@ import urllib.parse
 from lxml import etree
 from lxml.builder import ElementMaker
 
-from ebook_converter.constants import __appname__, __version__
+from ebook_converter.constants_old import __appname__, __version__
 from ebook_converter.ebooks.chardet import xml_to_unicode
 from ebook_converter.utils.xml_parse import safe_xml_fromstring
 from ebook_converter.utils.cleantext import clean_xml_chars