[PATCH v4 20/21] Revert "utils/ply: Change md5 usages to work on FIPS enabled hosts"

[Anton Mikanovich <amikan@ilbers.de>]

To make stretch targets be able to use WIC we should not use Python 3.6
functionality. The flag usedforsecurity of hashlib constructor is not
exists in Python 3.5, so revert its usage.

This reverts commit af866dd077867cba0129757bfcc689551445e9d7.

Signed-off-by: Anton Mikanovich <amikan@ilbers.de>
---
 bitbake/lib/bb/utils.py | 2 +-
 bitbake/lib/ply/yacc.py | 7 +++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/bitbake/lib/bb/utils.py b/bitbake/lib/bb/utils.py
index d11da97..e605155 100644
--- a/bitbake/lib/bb/utils.py
+++ b/bitbake/lib/bb/utils.py
@@ -541,7 +541,7 @@ def md5_file(filename):
     Return the hex string representation of the MD5 checksum of filename.
     """
     import hashlib
-    return _hasher(hashlib.new('MD5', usedforsecurity=False), filename)
+    return _hasher(hashlib.md5(), filename)
 
 def sha256_file(filename):
     """
diff --git a/bitbake/lib/ply/yacc.py b/bitbake/lib/ply/yacc.py
index 767c4e4..46e7dc9 100644
--- a/bitbake/lib/ply/yacc.py
+++ b/bitbake/lib/ply/yacc.py
@@ -2797,8 +2797,11 @@ class ParserReflect(object):
     # Compute a signature over the grammar
     def signature(self):
         try:
-            import hashlib
-            sig = hashlib.new('MD5', usedforsecurity=False)
+            from hashlib import md5
+        except ImportError:
+            from md5 import md5
+        try:
+            sig = md5()
             if self.start:
                 sig.update(self.start.encode('latin-1'))
             if self.prec:
-- 
2.17.1