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File python-crypto-2.4-fix-pubkey-size-divisions.patch of Package python-crypto

setup.py for Python 3 doesn't invoke 2to3 on pct-speedtest.py, which runs
into problems:

Traceback (most recent call last):
  File "pct-speedtest.py", line 218, in <module>
    Benchmark().run()
  File "pct-speedtest.py", line 200, in run
    self.test_pubkey_setup(pubkey_name, module, key_bytes)
  File "pct-speedtest.py", line 85, in test_pubkey_setup
    keys = self.random_keys(key_bytes)[:5]
  File "pct-speedtest.py", line 49, in random_keys
    return self.random_blocks(bytes, 10**5)     # 100k
  File "pct-speedtest.py", line 53, in random_blocks
    data = self.random_data(bytes)
  File "pct-speedtest.py", line 62, in random_data
    self.__random_data = self._random_bytes(bytes)
  File "pct-speedtest.py", line 73, in _random_bytes
    return os.urandom(b)
  File "/usr/lib64/python3.2/os.py", line 777, in urandom
    bs += read(_urandomfd, n - len(bs))
TypeError: integer argument expected, got float

This is due to the divisions in the pubkey_specs table, which in Python 3 is
true division, returning a float.

As it happens, 2to3 can't convert these divisions, see:
http://bugs.python.org/issue12831

Change them to explicitly be floor divisions (supported in Python 2.2
onwards; see PEP 0238)

--- pycrypto/pct-speedtest.py
+++ pycrypto/pct-speedtest.py
@@ -165,9 +165,9 @@
 
     def run(self):
         pubkey_specs = [
-            ("RSA(1024)", RSA, 1024/8),
-            ("RSA(2048)", RSA, 2048/8),
-            ("RSA(4096)", RSA, 4096/8),
+            ("RSA(1024)", RSA, 1024//8),
+            ("RSA(2048)", RSA, 2048//8),
+            ("RSA(4096)", RSA, 4096//8),
             ]
         block_specs = [
             ("DES", DES, 8),