pep8

coro/__init__.py

@@ -53,8 +53,8 @@ def default_exception_notifier():
             me.id,
             me.name,
             compact_traceback(),
-            )
         )
+    )
 
 set_exception_notifier (default_exception_notifier)
 
@@ -104,7 +104,7 @@ def in_parallel (fun_arg_list):
 #         InParallelError, [(SUCCESS, result0), (FAILURE, exc_info1), ...]
 
     n = len(fun_arg_list)
-    if n==0:
+    if n == 0:
         return []
     result_list = [None] * n
     sem = inverted_semaphore(n)
@@ -115,11 +115,11 @@ def in_parallel (fun_arg_list):
             i,
             sem,
             fun_arg_list[i]
-            )
+        )
     sem.block_till_zero()
     for i in xrange (n):
         if result_list[i][0] is FAILURE:
-            raise InParallelError, result_list
+            raise InParallelError(result_list)
     # no errors, convert to a simple result list
     return [x[1] for x in result_list]
 
@@ -230,7 +230,7 @@ def spawn (fun, *args, **kwargs):
 
     :returns: The new coroutine object.
     """
-    if kwargs.has_key('thread_name'):
+    if 'thread_name' in kwargs:
         thread_name = kwargs['thread_name']
         del kwargs['thread_name']
     else:
@@ -253,7 +253,7 @@ def new (fun, *args, **kwargs):
 
     :returns: The new coroutine object.
     """
-    if kwargs.has_key('thread_name'):
+    if 'thread_name' in kwargs:
         thread_name = kwargs['thread_name']
         del kwargs['thread_name']
     else:

coro/backdoor.py

@@ -59,9 +59,9 @@ class backdoor:
         self.global_dict = global_dict
 
         # allow the user to change the prompts:
-        if not sys.__dict__.has_key('ps1'):
+        if 'ps1' not in sys.__dict__:
             sys.ps1 = '>>> '
-        if not sys.__dict__.has_key('ps2'):
+        if 'ps2' not in sys.__dict__:
             sys.ps2 = '... '
 
     def send (self, data):
@@ -199,7 +199,7 @@ def serve (port=None, ip='', unix_path=None, welcome_message=None, global_dict=N
         try:
             os.remove (unix_path)
         except OSError, why:
-            if why[0]==errno.ENOENT:
+            if why[0] == errno.ENOENT:
                 pass
             else:
                 raise
@@ -223,9 +223,9 @@ def serve (port=None, ip='', unix_path=None, welcome_message=None, global_dict=N
                 break
             except OSError, why:
                 if why[0] != errno.EADDRINUSE:
-                    raise OSError, why
+                    raise OSError(why)
         else:
-            raise Exception, "couldn't bind a port (try not specifying a port)"
+            raise Exception("couldn't bind a port (try not specifying a port)")
 
     if client_class is None:
         client_class = client
@@ -268,15 +268,15 @@ class ssh_server:
         self.server_key = server_key
         self.authenticators = authenticators
         coro.spawn (self.serve)
-        
+
     def serve (self):
         serve (self.port, self.addr, client_class=self.new_connection)
-        
+
     def new_connection (self, conn, addr, welcome_message, global_dict):
-        #debug = coro.ssh.util.debug.Debug()
-        #debug.level = coro.ssh.util.debug.DEBUG_3
+        # debug = coro.ssh.util.debug.Debug()
+        # debug.level = coro.ssh.util.debug.DEBUG_3
         transport = coro.ssh.l4_transport.coro_socket_transport.coro_socket_transport(sock=conn)
-        server = coro.ssh.transport.server.SSH_Server_Transport (self.server_key) #, debug=debug)
+        server = coro.ssh.transport.server.SSH_Server_Transport (self.server_key)  # , debug=debug)
         authenticator = coro.ssh.auth.userauth.Authenticator (server, self.authenticators)
         server.connect (transport, authenticator)
         service = coro.ssh.connection.connect.Connection_Service (server, ssh_repl)

coro/frontdoor.py

@@ -41,21 +41,21 @@ class stdin (coro.sock):
         coro.sock.__init__ (self, fd=0)
         self.fd = 0
         self.old = termios.tcgetattr (self.fd)
-        #print 'old=%r' % (self.old,)
+        # print 'old=%r' % (self.old,)
         self.new = termios.tcgetattr (self.fd)
         self.new[LFLAG] &= ~(termios.ICANON | termios.ECHO  | termios.IEXTEN)
         self.new[IFLAG] &= ~(termios.IGNBRK | termios.IXOFF | termios.IXON)
         self.new[CC][termios.VMIN] = 1
         self.new[CC][termios.VTIME] = 0
-        self.new[CC][termios.CINTR] = 254 # block ctrl-c?  doesn't work.
-        #print 'new=%r' % (self.new,)
+        self.new[CC][termios.CINTR] = 254  # block ctrl-c?  doesn't work.
+        # print 'new=%r' % (self.new,)
         termios.tcsetattr (self.fd, termios.TCSANOW, self.new)
 
     def __dealloc__ (self):
         self.restore()
 
     def restore (self):
-        #print '[restoring stdin to %r]' % (self.old,)
+        # print '[restoring stdin to %r]' % (self.old,)
         termios.tcsetattr (self.fd, termios.TCSAFLUSH, self.old)
 
     def read (self, size):

coro/print_profile.py

@@ -31,8 +31,6 @@ TODO
 
 """
 
-
-
 import urllib
 import cgi
 import sys
@@ -137,9 +135,15 @@ function ts_resortTable(lnk,clid) {
 
     // We appendChild rows that already exist to the tbody, so it moves them rather than creating new ones
     // don't do sortbottom rows
-    for (i=0;i<newRows.length;i++) { if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1))) table.tBodies[0].appendChild(newRows[i]);}
+    for (i=0;i<newRows.length;i++) {
+        if (!newRows[i].className || (newRows[i].className && (newRows[i].className.indexOf('sortbottom') == -1)))
+             table.tBodies[0].appendChild(newRows[i]);
+    }
     // do sortbottom rows only
-    for (i=0;i<newRows.length;i++) { if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1)) table.tBodies[0].appendChild(newRows[i]);}
+    for (i=0;i<newRows.length;i++) {
+        if (newRows[i].className && (newRows[i].className.indexOf('sortbottom') != -1))
+            table.tBodies[0].appendChild(newRows[i]);
+    }
 
     // Delete any other arrows there may be showing
     var allspans = document.getElementsByTagName("span");
@@ -156,7 +160,8 @@ function ts_resortTable(lnk,clid) {
 
 function getParent(el, pTagName) {
     if (el == null) return null;
-    else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase())    // Gecko bug, supposed to be uppercase
+    else if (el.nodeType == 1 && el.tagName.toLowerCase() == pTagName.toLowerCase())
+        // Gecko bug, supposed to be uppercase
         return el;
     else
         return getParent(el.parentNode, pTagName);
@@ -251,7 +256,7 @@ def _mapfuns(d1, d2):
 
     m1 = [(_name(f), f) for f in d1]
     m2 = dict([(_name(f), f) for f in d2])
-    return dict([(v, m2[k]) for k,v in m1 if k in m2])
+    return dict([(v, m2[k]) for k, v in m1 if k in m2])
 
 
 class profile_data:
@@ -296,8 +301,8 @@ class profile_data:
         # Find any columns that have all zeros and skip them.
         has_nonzero = {}
         # Also determine the sum for the column.
-        column_sums = [0]*len(self.headings)
-        empty_cols = [0]*len(self.headings)
+        column_sums = [0] * len(self.headings)
+        empty_cols = [0] * len(self.headings)
 
         for heading in self.headings:
             has_nonzero[heading] = False
@@ -332,21 +337,21 @@ class profile_data:
             try:
                 calls2, data_tuple2, aggregate_data_tuple2 = other_profile[m[function_string]]
             except KeyError:
-                calls2, data_tuple2, aggregate_data_tuple2 = 0,empty_cols, empty_cols
+                calls2, data_tuple2, aggregate_data_tuple2 = 0, empty_cols, empty_cols
             print '  <tr align=right>'
-            print '    <td>%s</td>' % (calls-calls2,)
+            print '    <td>%s</td>' % (calls - calls2, )
             for i, heading in enumerate(self.headings):
                 if heading not in skip_headings:
                     if aggregate:
-                        data_item = aggregate_data_tuple[i]-aggregate_data_tuple2[i]
+                        data_item = aggregate_data_tuple[i] - aggregate_data_tuple2[i]
                     else:
-                        data_item = data_tuple[i]-data_tuple2[i]
+                        data_item = data_tuple[i] - data_tuple2[i]
                     if isinstance(data_item, float):
                         value = '%.6f' % (data_item,)
                     else:
                         value = data_item
                     if data_item and function_string != '<wait>':
-                        pct = ' (%.2f%%)' % ((float(data_item)/column_sums[i])*100,)
+                        pct = ' (%.2f%%)' % ((float(data_item) / column_sums[i]) * 100,)
                     else:
                         pct = ''
                     print '    <td>%s%s</td>' % (value, pct)
@@ -355,15 +360,15 @@ class profile_data:
                             per = data_item
                         else:
                             if isinstance(data_item, float):
-                                per = '%.6f' % (data_item/calls,)
+                                per = '%.6f' % (data_item / calls,)
                             else:
-                                per = data_item/calls
-                        print '    <td>%s</td>' % (per,)
+                                per = data_item / calls
+                        print '    <td>%s</td>' % (per, )
             print '    <td align=left><a name="tt_%s"></a><a href="#cg_%s">%s</a></td>' % (
-                            urllib.quote_plus(function_string),
-                            urllib.quote_plus(function_string),
-                            cgi.escape(function_string, quote=True)
-                           )
+                urllib.quote_plus(function_string),
+                urllib.quote_plus(function_string),
+                cgi.escape(function_string, quote=True)
+            )
             print '  </tr>'
         print '</table>'
         print '<p><tt>/call</tt> columns represent the time spent in that function per call <b>on average</b>.'
@@ -374,7 +379,7 @@ class profile_data:
         rg = {}
         for caller_string, callees in self.call_data.iteritems():
             for callee_string, call_count in callees:
-                if rg.has_key(callee_string):
+                if callee_string in rg:
                     rg[callee_string].append((caller_string, call_count))
                 else:
                     rg[callee_string] = [(caller_string, call_count)]
@@ -394,23 +399,21 @@ class profile_data:
             print '</tt>'
             print '<pre>'
             # Print callers.
-            if rg.has_key(function_string):
+            if function_string in rg:
                 l = []
                 for caller, count in rg[function_string]:
                     l.append((caller, count))
-                l.sort(lambda a,b: cmp(a[1], b[1]))
+                l.sort(lambda a, b: cmp(a[1], b[1]))
                 for caller, count in l:
                     print '%10i/%-10i (%04.1f%%) <a href="#tt_%s">%s</a>' % (
                         count,
                         calls,
-                        (float(count)/calls) * 100,
+                        (float(count) / calls) * 100,
                         urllib.quote_plus(caller),
                         cgi.escape(caller, quote=True)
-                       )
+                    )
 
-            print '%15i           <b>%s</b>' % (calls,
-                                                function_string
-                                               )
+            print '%15i           <b>%s</b>' % (calls, function_string)
 
             # Print callees.
             callees2 = []
@@ -418,15 +421,15 @@ class profile_data:
             for callee_string, call_count in callees:
                 callee_calls = self.profile_data.get(callee_string, [1])[0]
                 callees2.append((callee_string, call_count, callee_calls))
-            callees2.sort(lambda a,b: cmp(a[1], b[1]))
+            callees2.sort(lambda a, b: cmp(a[1], b[1]))
             for callee_string, call_count, callee_calls in callees2:
                 print '%10i/%-10i (%04.1f%%) <a href="#tt_%s">%s</a>' % (
                     call_count,
                     callee_calls,
-                    (float(call_count)/callee_calls) * 100,
+                    (float(call_count) / callee_calls) * 100,
                     urllib.quote_plus(callee_string),
                     cgi.escape(callee_string, quote=True)
-                   )
+                )
             print '</pre>'
 
         print '<hr>'
@@ -446,7 +449,6 @@ class profile_data:
         print
         print 'Profile data values of 0 are not displayed.'
 
-
     def _print_header(self):
         print '<html><head><title>Shrapnel Profile</title></head><body bgcolor="#ffffff">'
         print '<script type="text/javascript"><!--'
@@ -493,4 +495,3 @@ if __name__ == '__main__':
     baseline = sys.argv[1]
     otherfile = sys.argv[2] if len(sys.argv) == 3 else None
     main(baseline, otherfile)
-

coro/profiler.py

@@ -107,13 +107,13 @@ def go (fun, *args, **kwargs):
     :keyword profile_bench: The bench object type to use.  Defaults to
           :class:`coro.rusage_bench`.
     """
-    if kwargs.has_key('profile_filename'):
+    if 'profile_filename' in kwargs:
         profile_filename = kwargs['profile_filename']
         del kwargs['profile_filename']
     else:
         profile_filename = '/tmp/coro_profile.bin'
 
-    if kwargs.has_key('profile_bench'):
+    if 'profile_bench' in kwargs:
         profile_bench = kwargs['profile_bench']
         del kwargs['profile_bench']
     else:
@@ -146,25 +146,25 @@ def stop(filename='/tmp/coro_profile.bin'):
     p.stop()
     _dump(p, filename)
 
-def tak1 (x,y,z):
+def tak1 (x, y, z):
     if y >= x:
         return z
     else:
         return tak1 (
-            tak1 (x-1, y, z),
-            tak2 (y-1, z, x),
-            tak2 (z-1, x, y)
-            )
+            tak1 (x - 1, y, z),
+            tak2 (y - 1, z, x),
+            tak2 (z - 1, x, y)
+        )
 
-def tak2 (x,y,z):
+def tak2 (x, y, z):
     if y >= x:
         return z
     else:
         return tak2 (
-            tak2 (x-1, y, z),
-            tak1 (y-1, z, x),
-            tak1 (z-1, x, y)
-            )
+            tak2 (x - 1, y, z),
+            tak1 (y - 1, z, x),
+            tak1 (z - 1, x, y)
+        )
 
 if __name__ == '__main__':
     go (tak2, 18, 12, 6)

coro/read_stream.py

@@ -4,6 +4,7 @@ class socket_producer:
     def __init__ (self, conn, buffer_size=8000):
         self.conn = conn
         self.buffer_size = buffer_size
+
     def next (self):
         return self.conn.recv (self.buffer_size)
 
@@ -32,7 +33,7 @@ class buffered_stream:
                 if self.buffer[i] == delim[m]:
                     m += 1
                     if m == ld:
-                        result, self.buffer = self.buffer[:i+1], self.buffer[i+1:]
+                        result, self.buffer = self.buffer[:i + 1], self.buffer[i + 1:]
                         yield result
                         return
                 else:
@@ -54,7 +55,7 @@ class buffered_stream:
             i = 0
             while i < len (self.buffer):
                 if dfa.consume (self.buffer[i]):
-                    result, self.buffer = self.buffer[:i+1], self.buffer[i+1:]
+                    result, self.buffer = self.buffer[:i + 1], self.buffer[i + 1:]
                     yield result
                     return
                 i += 1
@@ -80,7 +81,7 @@ class buffered_stream:
 
     def read_until (self, delim, join=True):
         "read until <delim>.  return a list of parts unless <join> is True"
-        result = ( x for x in self.gen_read_until (delim) )
+        result = (x for x in self.gen_read_until (delim))
         if join:
             return ''.join (result)
         else:
@@ -88,7 +89,7 @@ class buffered_stream:
 
     def read_exact (self, size, join=True):
         "read exactly <size> bytes.  return a list of parts unless <join> is True"
-        result = ( x for x in self.gen_read_exact (size) )
+        result = (x for x in self.gen_read_exact (size))
         if join:
             return ''.join (result)
         else:
@@ -113,4 +114,3 @@ class buffered_stream:
                 return
             else:
                 yield block
-

coro/tb.py

@@ -33,7 +33,7 @@ def _get_module_name(n):
     try:
         path, filename = os.path.split(n)
         path, directory = os.path.split(path)
-        #name, ext = os.path.splitext(filename)
+        # name, ext = os.path.splitext(filename)
         if directory:
             return '/'.join((directory, filename))
         else:
@@ -62,9 +62,9 @@ def stack_string(f=None):
             _get_module_name(f.f_code.co_filename) + ' ' +
             f.f_code.co_name + '|' +
             str(f.f_lineno)
-            )
+        )
         f = f.f_back
-    return '[' + ('] ['.join(stack))+ ']'
+    return '[' + ('] ['.join(stack)) + ']'
 
 def traceback_string(t=None, v=None, tb=None):
     """Returns a compact string representing the current exception.
@@ -81,7 +81,7 @@ def traceback_string(t=None, v=None, tb=None):
         Returns a string of the current exception and stack trace.
     """
     if t is None:
-        t,v,tb = sys.exc_info()
+        t, v, tb = sys.exc_info()
     tbinfo = []
     if tb is None:
         # this should never happen, but then again, lots of things
@@ -92,7 +92,7 @@ def traceback_string(t=None, v=None, tb=None):
             _get_module_name (tb.tb_frame.f_code.co_filename) + ' ' +
             tb.tb_frame.f_code.co_name + '|' +
             str(tb.tb_lineno)
-            )
+        )
         tb = tb.tb_next
 
     # just to be safe

setup.py

-# $Header: //prod/main/ap/shrapnel/setup.py#17 $
 #!/usr/bin/env python
 
 import sys
@@ -17,7 +16,7 @@ except ImportError:
         '\nThe Cython compiler is required to build Shrapnel.\n'
         '  Try "pip install cython"\n'
         '  *or* "easy_install cython"\n'
-        )
+    )
     sys.exit (-1)
 
 include_dir = os.getcwd()
@@ -59,15 +58,15 @@ USE_LINUX_AIO = check_linux_aio()
 compile_time_env = {
     'COMPILE_LIO': check_lio(),
     'COMPILE_LINUX_AIO': USE_LINUX_AIO,
-    'COMPILE_NETDEV' : False,
-    'COMPILE_LZO' : False,
-    'COMPILE_LZ4' : False,
+    'COMPILE_NETDEV': False,
+    'COMPILE_LZO': False,
+    'COMPILE_LZ4': False,
     'CORO_DEBUG': False,
-    }
+}
 
-#--------------------------------------------------------------------------------
+# --------------------------------------------------------------------------
 # OpenSSL support
-#--------------------------------------------------------------------------------
+# --------------------------------------------------------------------------
 
 # If you need NPN support (for SPDY), you most likely will have to link against
 #   newer openssl than the one that came with your OS.  (this is circa 2012).
@@ -78,7 +77,7 @@ compile_time_env = {
 
 # statically link is a bit tricky
 # Note: be sure to remove coro/ssl/openssl.c if you change this, see NPN probe below.
-#ossl_base = '/Users/rushing/src/openssl-1.0.1c'
+# ossl_base = '/Users/rushing/src/openssl-1.0.1c'
 #
 # OS X: as of 10.9, openssl seems to have been completely removed.  You'll need
 #  to install from the sources.  Once this is done, use '/usr/local/ssl/' for ossl_base.
@@ -101,15 +100,15 @@ OpenSSL_Extension = Extension (
     ['coro/ssl/openssl.pyx'],
     depends=['coro/ssl/openssl.pxi'],
     # manual static link
-    #extra_link_args = [ O('libcrypto.a'), O('libssl.a') ],
+    # extra_link_args = [O('libcrypto.a'), O('libssl.a')],
     # link to an absolute location
-    #extra_link_args = [ '-L %s -lcrypto -lssl' % (ossl_base,) ]
+    # extra_link_args = ['-L %s -lcrypto -lssl' % (ossl_base,)]
     # 'normal' link
-    libraries = ['crypto', 'ssl'],
-    include_dirs = [ O('include') ],
-    cython_compile_time_env = {'NPN' : USE_NPN},
-    )
-#--------------------------------------------------------------------------------
+    libraries=['crypto', 'ssl'],
+    include_dirs=[O('include')],
+    cython_compile_time_env={'NPN': USE_NPN},
+)
+# --------------------------------------------------------------------------
 
 setup (
     name='coro',
@@ -117,23 +116,23 @@ setup (
     description='IronPort Coroutine/Threading Library',
     author='Sam Rushing, Eric Huss, IronPort Engineering',
     author_email='sam-coro@rushing.nightmare.com',
-    license = "MIT",
-    url = "http://github.com/ironport/shrapnel",
-    ext_modules = [
+    license="MIT",
+    url="http://github.com/ironport/shrapnel",
+    ext_modules=[
         Extension(
             'coro.event_queue',
             ['coro/event_queue.pyx'],
             language='c++',
-            depends=[os.path.join(include_dir, 'pyrex', 'python.pxi'),],
+            depends=[os.path.join(include_dir, 'pyrex', 'python.pxi'), ],
             pyrex_include_dirs=[
                 os.path.join(include_dir, '.'),
                 os.path.join(include_dir, 'pyrex'),
-                ],),
+            ],),
         Extension (
             'coro._coro',
             ['coro/_coro.pyx', 'coro/swap.c'],
-            extra_compile_args = ['-Wno-unused-function'],
-            depends = (
+            extra_compile_args=['-Wno-unused-function'],
+            depends=(
                 glob.glob('coro/*.pyx') +
                 glob.glob('coro/*.pxi') +
                 glob.glob('coro/*.pxd') + [
@@ -143,31 +142,32 @@ setup (
                     os.path.join(include_dir, 'pyrex', 'tsc_time_include.pyx'),
                     os.path.join(include_dir, 'include', 'tsc_time.h'),
                     os.path.join(include_dir, 'pyrex', 'libc.pxd'),
-                    ]
-                 ),
+                ]
+            ),
             pyrex_include_dirs=[
                 os.path.join(include_dir, '.'),
                 os.path.join(include_dir, 'pyrex'),
-                ],
+            ],
             include_dirs=[
                 os.path.join(include_dir, '.'),
                 os.path.join(include_dir, 'include'),
-                ],
-            pyrex_compile_time_env = compile_time_env,
+            ],
+            pyrex_compile_time_env=compile_time_env,
             # to enable LZO|LZ4 for stack compression, set COMPILE_LZO|COMPILE_LZ4 above
             #   and uncomment one of the following:
-            #libraries=['lzo2', 'z']
-            #libraries=['lz4', 'z'],
+            # libraries=['lzo2', 'z']
+            # libraries=['lz4', 'z'],
             libraries=['z'] + (['aio'] if USE_LINUX_AIO else [])
-            ),
-        Extension ('coro.oserrors', ['coro/oserrors.pyx', ],),
-        Extension ('coro.dns.packet', ['coro/dns/packet.pyx', ],),
-        Extension ('coro.dns.surf', ['coro/dns/surf.pyx',],),
+        ),
+        Extension ('coro.oserrors', ['coro/oserrors.pyx', ], ),
+        Extension ('coro.dns.packet', ['coro/dns/packet.pyx', ], ),
+        Extension ('coro.dns.surf', ['coro/dns/surf.pyx', ], ),
         Extension ('coro.lru', ['coro/lru.pyx'], ),
-        Extension ('coro.asn1.ber', ['coro/asn1/ber.pyx'],),
-        Extension ('coro.db.postgres.proto', ['coro/db/postgres/proto.pyx'],),
+        Extension ('coro.asn1.ber', ['coro/asn1/ber.pyx'], ),
+        Extension ('coro.db.postgres.proto', ['coro/db/postgres/proto.pyx'], ),
         Extension ('coro.ldap.query', ['coro/ldap/query.pyx'],),
-        Extension ('coro.http.zspdy', ['coro/http/zspdy.pyx'], include_dirs=['coro'], libraries=['z'], depends=['coro/zlib.pxd']),
+        Extension ('coro.http.zspdy', ['coro/http/zspdy.pyx'],
+                   include_dirs=['coro'], libraries=['z'], depends=['coro/zlib.pxd']),
         Extension (
             'coro.clocks.tsc_time',
             ['coro/clocks/tsc_time.pyx', ],
@@ -175,13 +175,13 @@ setup (
             include_dirs=[
                 os.path.join(include_dir, '.'),
                 os.path.join(include_dir, 'include'),
-                ],
-            ),
+            ],
+        ),
         # the pre-computed openssl extension from above
         OpenSSL_Extension,
-        ],
+    ],
     packages= find_packages(),
-    py_modules = ['backdoor', 'coro.read_stream', 'coro_process', 'coro_unittest',],
+    py_modules = ['backdoor', 'coro.read_stream', 'coro_process', 'coro_unittest', ],
     download_url = 'http://github.com/ironport/shrapnel/tarball/master#egg=coro-1.0.2',
     install_requires = ['cython>=0.12.1', 'distribute>=0.6.16', 'pycrypto'],
     cmdclass={'build_ext': build_ext},