From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 2 Oct 2011 06:01:17 +0000 (-0700)
Subject: checksum.py: lazily import bundled whirlpool
X-Git-Tag: v2.2.0_alpha61~22
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=06ad8911b5790a2ed963fe1b981751ab0a2be8d5;p=portage.git

checksum.py: lazily import bundled whirlpool
---

diff --git a/pym/portage/checksum.py b/pym/portage/checksum.py
index a4a744ba9..080a6dff3 100644
--- a/pym/portage/checksum.py
+++ b/pym/portage/checksum.py
@@ -76,10 +76,6 @@ except ImportError:
 
 sha1hash = _generate_hash_function("SHA1", _new_sha1, origin="internal")
 
-# Bundled WHIRLPOOL implementation
-from portage.util.whirlpool import new as _new_whirlpool
-whirlpoolhash = _generate_hash_function("WHIRLPOOL", _new_whirlpool, origin="bundled")
-
 # Try to use mhash if available
 # mhash causes GIL presently, so it gets less priority than hashlib and
 # pycrypto. However, it might be the only accelerated implementation of
@@ -104,7 +100,7 @@ try:
 	from Crypto.Hash import SHA256, RIPEMD
 	sha256hash = _generate_hash_function("SHA256", SHA256.new, origin="pycrypto")
 	rmd160hash = _generate_hash_function("RMD160", RIPEMD.new, origin="pycrypto")
-except ImportError as e:
+except ImportError:
 	pass
 
 # Use hashlib from python-2.5 if available and prefer it over pycrypto and internal fallbacks.
@@ -127,9 +123,13 @@ try:
 				functools.partial(hashlib.new, hash_name), \
 				origin='hashlib')
 
-except ImportError as e:
+except ImportError:
 	pass
-	
+
+if "WHIRLPOOL" not in hashfunc_map:
+	# Bundled WHIRLPOOL implementation
+	from portage.util.whirlpool import new as _new_whirlpool
+	whirlpoolhash = _generate_hash_function("WHIRLPOOL", _new_whirlpool, origin="bundled")
 
 # Use python-fchksum if available, prefer it over all other MD5 implementations
 try: