Upgrade python-hdwallet to not require pysha3 for Keccak hash

- Must depend on github branch version of hdwallet for now

Author: pjkundert

requirements.txt

@@ -2,7 +2,8 @@ click		>=8.1.3,<9
 base58		>=2.0.1,<3
 chacha20poly1305>=0.0.3
 fpdf2		>=2.5.7,<3
-hdwallet	>=2.1,	<3
+# hdwallet	>=2.1.2,<3
+hdwallet @ git+https://github.com/pjkundert/python-hdwallet.git@fix-keccak#egg=hdwallet
 mnemonic	>=0.2,	<1
 qrcode		>=7.3
 shamir-mnemonic	>=0.2,	<1

slip39/layout/pdf.py

@@ -32,7 +32,7 @@
 import fpdf		# FPDF, FlexTemplate, FPDF_FONT_DIR
 
 from ..api		import Account, cryptopaths_parser, create, enumerate_mnemonic, group_parser
-from ..util		import chunker, commas
+from ..util		import chunker
 from ..recovery		import recover, produce_bip39
 from ..defaults		import (
     FONTS, CARD, CARD_SIZES, PAPER, PAGE_MARGIN, MM_IN, PT_IN,