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-rw-r--r--lib/Crypto/SelfTest/st_common.py12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/Crypto/SelfTest/st_common.py b/lib/Crypto/SelfTest/st_common.py
index c56eac5..627ace7 100644
--- a/lib/Crypto/SelfTest/st_common.py
+++ b/lib/Crypto/SelfTest/st_common.py
@@ -59,4 +59,16 @@ def b2a_hex(s):
# For completeness
return binascii.b2a_hex(s)
+def handle_fastmath_import_error():
+ from distutils.sysconfig import get_config_var
+ import inspect, os.path
+ ext_suffix = get_config_var("EXT_SUFFIX") or get_config_var("SO")
+ _fm_path = os.path.normpath(os.path.dirname(os.path.abspath(
+ inspect.getfile(inspect.currentframe())))
+ +"/../../PublicKey/_fastmath"+ext_suffix)
+ if os.path.exists(_fm_path):
+ raise ImportError("While the _fastmath module exists, importing "+
+ "it failed. This may point to the gmp or mpir shared library "+
+ "not being in the path. _fastmath was found at "+_fm_path)
+
# vim:set ts=4 sw=4 sts=4 expandtab: