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@@ -1,493 +1,507 b'' | |||
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1 | 1 | # -*- coding: utf-8 -*- |
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2 | 2 | """test View objects |
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3 | 3 | |
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4 | 4 | Authors: |
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5 | 5 | |
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6 | 6 | * Min RK |
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7 | 7 | """ |
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8 | 8 | #------------------------------------------------------------------------------- |
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9 | 9 | # Copyright (C) 2011 The IPython Development Team |
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10 | 10 | # |
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11 | 11 | # Distributed under the terms of the BSD License. The full license is in |
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12 | 12 | # the file COPYING, distributed as part of this software. |
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13 | 13 | #------------------------------------------------------------------------------- |
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14 | 14 | |
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15 | 15 | #------------------------------------------------------------------------------- |
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16 | 16 | # Imports |
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17 | 17 | #------------------------------------------------------------------------------- |
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18 | 18 | |
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19 | 19 | import sys |
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20 | 20 | import time |
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21 | 21 | from tempfile import mktemp |
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22 | 22 | from StringIO import StringIO |
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23 | 23 | |
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24 | 24 | import zmq |
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25 | 25 | from nose import SkipTest |
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26 | 26 | |
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27 | 27 | from IPython.testing import decorators as dec |
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28 | 28 | |
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29 | 29 | from IPython import parallel as pmod |
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30 | 30 | from IPython.parallel import error |
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31 | 31 | from IPython.parallel import AsyncResult, AsyncHubResult, AsyncMapResult |
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32 | 32 | from IPython.parallel import DirectView |
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33 | 33 | from IPython.parallel.util import interactive |
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34 | 34 | |
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35 | 35 | from IPython.parallel.tests import add_engines |
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36 | 36 | |
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37 | 37 | from .clienttest import ClusterTestCase, crash, wait, skip_without |
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38 | 38 | |
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39 | 39 | def setup(): |
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40 | 40 | add_engines(3) |
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41 | 41 | |
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42 | 42 | class TestView(ClusterTestCase): |
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43 | 43 | |
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44 | 44 | def test_z_crash_mux(self): |
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45 | 45 | """test graceful handling of engine death (direct)""" |
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46 | 46 | raise SkipTest("crash tests disabled, due to undesirable crash reports") |
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47 | 47 | # self.add_engines(1) |
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48 | 48 | eid = self.client.ids[-1] |
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49 | 49 | ar = self.client[eid].apply_async(crash) |
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50 | 50 | self.assertRaisesRemote(error.EngineError, ar.get, 10) |
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51 | 51 | eid = ar.engine_id |
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52 | 52 | tic = time.time() |
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53 | 53 | while eid in self.client.ids and time.time()-tic < 5: |
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54 | 54 | time.sleep(.01) |
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55 | 55 | self.client.spin() |
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56 | 56 | self.assertFalse(eid in self.client.ids, "Engine should have died") |
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57 | 57 | |
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58 | 58 | def test_push_pull(self): |
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59 | 59 | """test pushing and pulling""" |
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60 | 60 | data = dict(a=10, b=1.05, c=range(10), d={'e':(1,2),'f':'hi'}) |
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61 | 61 | t = self.client.ids[-1] |
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62 | 62 | v = self.client[t] |
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63 | 63 | push = v.push |
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64 | 64 | pull = v.pull |
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65 | 65 | v.block=True |
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66 | 66 | nengines = len(self.client) |
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67 | 67 | push({'data':data}) |
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68 | 68 | d = pull('data') |
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69 | 69 | self.assertEquals(d, data) |
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70 | 70 | self.client[:].push({'data':data}) |
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71 | 71 | d = self.client[:].pull('data', block=True) |
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72 | 72 | self.assertEquals(d, nengines*[data]) |
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73 | 73 | ar = push({'data':data}, block=False) |
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74 | 74 | self.assertTrue(isinstance(ar, AsyncResult)) |
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75 | 75 | r = ar.get() |
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76 | 76 | ar = self.client[:].pull('data', block=False) |
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77 | 77 | self.assertTrue(isinstance(ar, AsyncResult)) |
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78 | 78 | r = ar.get() |
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79 | 79 | self.assertEquals(r, nengines*[data]) |
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80 | 80 | self.client[:].push(dict(a=10,b=20)) |
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81 | 81 | r = self.client[:].pull(('a','b'), block=True) |
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82 | 82 | self.assertEquals(r, nengines*[[10,20]]) |
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83 | 83 | |
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84 | 84 | def test_push_pull_function(self): |
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85 | 85 | "test pushing and pulling functions" |
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86 | 86 | def testf(x): |
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87 | 87 | return 2.0*x |
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88 | 88 | |
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89 | 89 | t = self.client.ids[-1] |
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90 | 90 | v = self.client[t] |
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91 | 91 | v.block=True |
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92 | 92 | push = v.push |
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93 | 93 | pull = v.pull |
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94 | 94 | execute = v.execute |
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95 | 95 | push({'testf':testf}) |
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96 | 96 | r = pull('testf') |
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97 | 97 | self.assertEqual(r(1.0), testf(1.0)) |
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98 | 98 | execute('r = testf(10)') |
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99 | 99 | r = pull('r') |
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100 | 100 | self.assertEquals(r, testf(10)) |
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101 | 101 | ar = self.client[:].push({'testf':testf}, block=False) |
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102 | 102 | ar.get() |
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103 | 103 | ar = self.client[:].pull('testf', block=False) |
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104 | 104 | rlist = ar.get() |
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105 | 105 | for r in rlist: |
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106 | 106 | self.assertEqual(r(1.0), testf(1.0)) |
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107 | 107 | execute("def g(x): return x*x") |
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108 | 108 | r = pull(('testf','g')) |
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109 | 109 | self.assertEquals((r[0](10),r[1](10)), (testf(10), 100)) |
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110 | 110 | |
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111 | 111 | def test_push_function_globals(self): |
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112 | 112 | """test that pushed functions have access to globals""" |
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113 | 113 | @interactive |
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114 | 114 | def geta(): |
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115 | 115 | return a |
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116 | 116 | # self.add_engines(1) |
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117 | 117 | v = self.client[-1] |
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118 | 118 | v.block=True |
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119 | 119 | v['f'] = geta |
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120 | 120 | self.assertRaisesRemote(NameError, v.execute, 'b=f()') |
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121 | 121 | v.execute('a=5') |
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122 | 122 | v.execute('b=f()') |
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123 | 123 | self.assertEquals(v['b'], 5) |
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124 | 124 | |
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125 | 125 | def test_push_function_defaults(self): |
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126 | 126 | """test that pushed functions preserve default args""" |
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127 | 127 | def echo(a=10): |
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128 | 128 | return a |
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129 | 129 | v = self.client[-1] |
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130 | 130 | v.block=True |
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131 | 131 | v['f'] = echo |
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132 | 132 | v.execute('b=f()') |
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133 | 133 | self.assertEquals(v['b'], 10) |
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134 | 134 | |
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135 | 135 | def test_get_result(self): |
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136 | 136 | """test getting results from the Hub.""" |
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137 | 137 | c = pmod.Client(profile='iptest') |
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138 | 138 | # self.add_engines(1) |
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139 | 139 | t = c.ids[-1] |
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140 | 140 | v = c[t] |
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141 | 141 | v2 = self.client[t] |
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142 | 142 | ar = v.apply_async(wait, 1) |
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143 | 143 | # give the monitor time to notice the message |
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144 | 144 | time.sleep(.25) |
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145 | 145 | ahr = v2.get_result(ar.msg_ids) |
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146 | 146 | self.assertTrue(isinstance(ahr, AsyncHubResult)) |
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147 | 147 | self.assertEquals(ahr.get(), ar.get()) |
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148 | 148 | ar2 = v2.get_result(ar.msg_ids) |
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149 | 149 | self.assertFalse(isinstance(ar2, AsyncHubResult)) |
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150 | 150 | c.spin() |
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151 | 151 | c.close() |
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152 | 152 | |
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153 | 153 | def test_run_newline(self): |
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154 | 154 | """test that run appends newline to files""" |
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155 | 155 | tmpfile = mktemp() |
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156 | 156 | with open(tmpfile, 'w') as f: |
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157 | 157 | f.write("""def g(): |
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158 | 158 | return 5 |
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159 | 159 | """) |
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160 | 160 | v = self.client[-1] |
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161 | 161 | v.run(tmpfile, block=True) |
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162 | 162 | self.assertEquals(v.apply_sync(lambda f: f(), pmod.Reference('g')), 5) |
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163 | 163 | |
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164 | 164 | def test_apply_tracked(self): |
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165 | 165 | """test tracking for apply""" |
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166 | 166 | # self.add_engines(1) |
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167 | 167 | t = self.client.ids[-1] |
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168 | 168 | v = self.client[t] |
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169 | 169 | v.block=False |
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170 | 170 | def echo(n=1024*1024, **kwargs): |
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171 | 171 | with v.temp_flags(**kwargs): |
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172 | 172 | return v.apply(lambda x: x, 'x'*n) |
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173 | 173 | ar = echo(1, track=False) |
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174 | 174 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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175 | 175 | self.assertTrue(ar.sent) |
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176 | 176 | ar = echo(track=True) |
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177 | 177 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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178 | 178 | self.assertEquals(ar.sent, ar._tracker.done) |
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179 | 179 | ar._tracker.wait() |
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180 | 180 | self.assertTrue(ar.sent) |
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181 | 181 | |
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182 | 182 | def test_push_tracked(self): |
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183 | 183 | t = self.client.ids[-1] |
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184 | 184 | ns = dict(x='x'*1024*1024) |
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185 | 185 | v = self.client[t] |
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186 | 186 | ar = v.push(ns, block=False, track=False) |
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187 | 187 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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188 | 188 | self.assertTrue(ar.sent) |
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189 | 189 | |
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190 | 190 | ar = v.push(ns, block=False, track=True) |
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191 | 191 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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192 | 192 | ar._tracker.wait() |
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193 | 193 | self.assertEquals(ar.sent, ar._tracker.done) |
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194 | 194 | self.assertTrue(ar.sent) |
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195 | 195 | ar.get() |
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196 | 196 | |
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197 | 197 | def test_scatter_tracked(self): |
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198 | 198 | t = self.client.ids |
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199 | 199 | x='x'*1024*1024 |
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200 | 200 | ar = self.client[t].scatter('x', x, block=False, track=False) |
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201 | 201 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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202 | 202 | self.assertTrue(ar.sent) |
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203 | 203 | |
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204 | 204 | ar = self.client[t].scatter('x', x, block=False, track=True) |
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205 | 205 | self.assertTrue(isinstance(ar._tracker, zmq.MessageTracker)) |
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206 | 206 | self.assertEquals(ar.sent, ar._tracker.done) |
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207 | 207 | ar._tracker.wait() |
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208 | 208 | self.assertTrue(ar.sent) |
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209 | 209 | ar.get() |
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210 | 210 | |
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211 | 211 | def test_remote_reference(self): |
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212 | 212 | v = self.client[-1] |
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213 | 213 | v['a'] = 123 |
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214 | 214 | ra = pmod.Reference('a') |
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215 | 215 | b = v.apply_sync(lambda x: x, ra) |
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216 | 216 | self.assertEquals(b, 123) |
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217 | 217 | |
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218 | 218 | |
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219 | 219 | def test_scatter_gather(self): |
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220 | 220 | view = self.client[:] |
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221 | 221 | seq1 = range(16) |
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222 | 222 | view.scatter('a', seq1) |
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223 | 223 | seq2 = view.gather('a', block=True) |
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224 | 224 | self.assertEquals(seq2, seq1) |
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225 | 225 | self.assertRaisesRemote(NameError, view.gather, 'asdf', block=True) |
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226 | 226 | |
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227 | 227 | @skip_without('numpy') |
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228 | 228 | def test_scatter_gather_numpy(self): |
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229 | 229 | import numpy |
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230 | 230 | from numpy.testing.utils import assert_array_equal, assert_array_almost_equal |
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231 | 231 | view = self.client[:] |
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232 | 232 | a = numpy.arange(64) |
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233 | 233 | view.scatter('a', a) |
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234 | 234 | b = view.gather('a', block=True) |
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235 | 235 | assert_array_equal(b, a) |
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236 | 236 | |
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237 | 237 | def test_map(self): |
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238 | 238 | view = self.client[:] |
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239 | 239 | def f(x): |
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240 | 240 | return x**2 |
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241 | 241 | data = range(16) |
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242 | 242 | r = view.map_sync(f, data) |
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243 | 243 | self.assertEquals(r, map(f, data)) |
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244 | 244 | |
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245 | 245 | def test_map_iterable(self): |
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246 | 246 | """test map on iterables (direct)""" |
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247 | 247 | view = self.client[:] |
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248 | 248 | # 101 is prime, so it won't be evenly distributed |
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249 | 249 | arr = range(101) |
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250 | 250 | # ensure it will be an iterator, even in Python 3 |
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251 | 251 | it = iter(arr) |
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252 | 252 | r = view.map_sync(lambda x:x, arr) |
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253 | 253 | self.assertEquals(r, list(arr)) |
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254 | 254 | |
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255 | 255 | def test_scatterGatherNonblocking(self): |
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256 | 256 | data = range(16) |
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257 | 257 | view = self.client[:] |
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258 | 258 | view.scatter('a', data, block=False) |
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259 | 259 | ar = view.gather('a', block=False) |
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260 | 260 | self.assertEquals(ar.get(), data) |
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261 | 261 | |
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262 | 262 | @skip_without('numpy') |
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263 | 263 | def test_scatter_gather_numpy_nonblocking(self): |
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264 | 264 | import numpy |
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265 | 265 | from numpy.testing.utils import assert_array_equal, assert_array_almost_equal |
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266 | 266 | a = numpy.arange(64) |
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267 | 267 | view = self.client[:] |
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268 | 268 | ar = view.scatter('a', a, block=False) |
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269 | 269 | self.assertTrue(isinstance(ar, AsyncResult)) |
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270 | 270 | amr = view.gather('a', block=False) |
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271 | 271 | self.assertTrue(isinstance(amr, AsyncMapResult)) |
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272 | 272 | assert_array_equal(amr.get(), a) |
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273 | 273 | |
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274 | 274 | def test_execute(self): |
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275 | 275 | view = self.client[:] |
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276 | 276 | # self.client.debug=True |
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277 | 277 | execute = view.execute |
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278 | 278 | ar = execute('c=30', block=False) |
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279 | 279 | self.assertTrue(isinstance(ar, AsyncResult)) |
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280 | 280 | ar = execute('d=[0,1,2]', block=False) |
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281 | 281 | self.client.wait(ar, 1) |
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282 | 282 | self.assertEquals(len(ar.get()), len(self.client)) |
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283 | 283 | for c in view['c']: |
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284 | 284 | self.assertEquals(c, 30) |
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285 | 285 | |
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286 | 286 | def test_abort(self): |
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287 | 287 | view = self.client[-1] |
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288 | 288 | ar = view.execute('import time; time.sleep(1)', block=False) |
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289 | 289 | ar2 = view.apply_async(lambda : 2) |
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290 | 290 | ar3 = view.apply_async(lambda : 3) |
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291 | 291 | view.abort(ar2) |
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292 | 292 | view.abort(ar3.msg_ids) |
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293 | 293 | self.assertRaises(error.TaskAborted, ar2.get) |
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294 | 294 | self.assertRaises(error.TaskAborted, ar3.get) |
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295 | 295 | |
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296 | 296 | def test_abort_all(self): |
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297 | 297 | """view.abort() aborts all outstanding tasks""" |
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298 | 298 | view = self.client[-1] |
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299 | 299 | ars = [ view.apply_async(time.sleep, 1) for i in range(10) ] |
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300 | 300 | view.abort() |
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301 | 301 | view.wait(timeout=5) |
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302 | 302 | for ar in ars[5:]: |
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303 | 303 | self.assertRaises(error.TaskAborted, ar.get) |
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304 | 304 | |
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305 | 305 | def test_temp_flags(self): |
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306 | 306 | view = self.client[-1] |
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307 | 307 | view.block=True |
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308 | 308 | with view.temp_flags(block=False): |
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309 | 309 | self.assertFalse(view.block) |
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310 | 310 | self.assertTrue(view.block) |
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311 | 311 | |
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312 | 312 | @dec.known_failure_py3 |
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313 | 313 | def test_importer(self): |
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314 | 314 | view = self.client[-1] |
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315 | 315 | view.clear(block=True) |
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316 | 316 | with view.importer: |
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317 | 317 | import re |
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318 | 318 | |
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319 | 319 | @interactive |
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320 | 320 | def findall(pat, s): |
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321 | 321 | # this globals() step isn't necessary in real code |
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322 | 322 | # only to prevent a closure in the test |
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323 | 323 | re = globals()['re'] |
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324 | 324 | return re.findall(pat, s) |
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325 | 325 | |
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326 | 326 | self.assertEquals(view.apply_sync(findall, '\w+', 'hello world'), 'hello world'.split()) |
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327 | 327 | |
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328 | 328 | # parallel magic tests |
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329 | 329 | |
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330 | 330 | def test_magic_px_blocking(self): |
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331 | 331 | ip = get_ipython() |
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332 | 332 | v = self.client[-1] |
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333 | 333 | v.activate() |
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334 | 334 | v.block=True |
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335 | 335 | |
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336 | 336 | ip.magic_px('a=5') |
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337 | 337 | self.assertEquals(v['a'], 5) |
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338 | 338 | ip.magic_px('a=10') |
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339 | 339 | self.assertEquals(v['a'], 10) |
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340 | 340 | sio = StringIO() |
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341 | 341 | savestdout = sys.stdout |
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342 | 342 | sys.stdout = sio |
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343 | 343 | # just 'print a' worst ~99% of the time, but this ensures that |
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344 | 344 | # the stdout message has arrived when the result is finished: |
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345 | 345 | ip.magic_px('import sys,time;print (a); sys.stdout.flush();time.sleep(0.2)') |
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346 | 346 | sys.stdout = savestdout |
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347 | 347 | buf = sio.getvalue() |
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348 | 348 | self.assertTrue('[stdout:' in buf, buf) |
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349 | 349 | self.assertTrue(buf.rstrip().endswith('10')) |
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350 | 350 | self.assertRaisesRemote(ZeroDivisionError, ip.magic_px, '1/0') |
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351 | 351 | |
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352 | 352 | def test_magic_px_nonblocking(self): |
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353 | 353 | ip = get_ipython() |
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354 | 354 | v = self.client[-1] |
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355 | 355 | v.activate() |
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356 | 356 | v.block=False |
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357 | 357 | |
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358 | 358 | ip.magic_px('a=5') |
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359 | 359 | self.assertEquals(v['a'], 5) |
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360 | 360 | ip.magic_px('a=10') |
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361 | 361 | self.assertEquals(v['a'], 10) |
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362 | 362 | sio = StringIO() |
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363 | 363 | savestdout = sys.stdout |
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364 | 364 | sys.stdout = sio |
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365 | 365 | ip.magic_px('print a') |
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366 | 366 | sys.stdout = savestdout |
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367 | 367 | buf = sio.getvalue() |
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368 | 368 | self.assertFalse('[stdout:%i]'%v.targets in buf) |
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369 | 369 | ip.magic_px('1/0') |
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370 | 370 | ar = v.get_result(-1) |
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371 | 371 | self.assertRaisesRemote(ZeroDivisionError, ar.get) |
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372 | 372 | |
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373 | 373 | def test_magic_autopx_blocking(self): |
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374 | 374 | ip = get_ipython() |
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375 | 375 | v = self.client[-1] |
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376 | 376 | v.activate() |
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377 | 377 | v.block=True |
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378 | 378 | |
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379 | 379 | sio = StringIO() |
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380 | 380 | savestdout = sys.stdout |
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381 | 381 | sys.stdout = sio |
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382 | 382 | ip.magic_autopx() |
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383 | 383 | ip.run_cell('\n'.join(('a=5','b=10','c=0'))) |
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384 | 384 | ip.run_cell('print b') |
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385 | 385 | ip.run_cell("b/c") |
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386 | 386 | ip.run_code(compile('b*=2', '', 'single')) |
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387 | 387 | ip.magic_autopx() |
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388 | 388 | sys.stdout = savestdout |
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389 | 389 | output = sio.getvalue().strip() |
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390 | 390 | self.assertTrue(output.startswith('%autopx enabled')) |
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391 | 391 | self.assertTrue(output.endswith('%autopx disabled')) |
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392 | 392 | self.assertTrue('RemoteError: ZeroDivisionError' in output) |
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393 | 393 | ar = v.get_result(-2) |
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394 | 394 | self.assertEquals(v['a'], 5) |
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395 | 395 | self.assertEquals(v['b'], 20) |
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396 | 396 | self.assertRaisesRemote(ZeroDivisionError, ar.get) |
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397 | 397 | |
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398 | 398 | def test_magic_autopx_nonblocking(self): |
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399 | 399 | ip = get_ipython() |
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400 | 400 | v = self.client[-1] |
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401 | 401 | v.activate() |
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402 | 402 | v.block=False |
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403 | 403 | |
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404 | 404 | sio = StringIO() |
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405 | 405 | savestdout = sys.stdout |
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406 | 406 | sys.stdout = sio |
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407 | 407 | ip.magic_autopx() |
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408 | 408 | ip.run_cell('\n'.join(('a=5','b=10','c=0'))) |
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409 | 409 | ip.run_cell('print b') |
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410 | 410 | ip.run_cell("b/c") |
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411 | 411 | ip.run_code(compile('b*=2', '', 'single')) |
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412 | 412 | ip.magic_autopx() |
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413 | 413 | sys.stdout = savestdout |
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414 | 414 | output = sio.getvalue().strip() |
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415 | 415 | self.assertTrue(output.startswith('%autopx enabled')) |
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416 | 416 | self.assertTrue(output.endswith('%autopx disabled')) |
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417 | 417 | self.assertFalse('ZeroDivisionError' in output) |
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418 | 418 | ar = v.get_result(-2) |
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419 | 419 | self.assertEquals(v['a'], 5) |
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420 | 420 | self.assertEquals(v['b'], 20) |
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421 | 421 | self.assertRaisesRemote(ZeroDivisionError, ar.get) |
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422 | 422 | |
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423 | 423 | def test_magic_result(self): |
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424 | 424 | ip = get_ipython() |
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425 | 425 | v = self.client[-1] |
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426 | 426 | v.activate() |
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427 | 427 | v['a'] = 111 |
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428 | 428 | ra = v['a'] |
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429 | 429 | |
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430 | 430 | ar = ip.magic_result() |
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431 | 431 | self.assertEquals(ar.msg_ids, [v.history[-1]]) |
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432 | 432 | self.assertEquals(ar.get(), 111) |
|
433 | 433 | ar = ip.magic_result('-2') |
|
434 | 434 | self.assertEquals(ar.msg_ids, [v.history[-2]]) |
|
435 | 435 | |
|
436 | 436 | def test_unicode_execute(self): |
|
437 | 437 | """test executing unicode strings""" |
|
438 | 438 | v = self.client[-1] |
|
439 | 439 | v.block=True |
|
440 | 440 | if sys.version_info[0] >= 3: |
|
441 | 441 | code="a='é'" |
|
442 | 442 | else: |
|
443 | 443 | code=u"a=u'é'" |
|
444 | 444 | v.execute(code) |
|
445 | 445 | self.assertEquals(v['a'], u'é') |
|
446 | 446 | |
|
447 | 447 | def test_unicode_apply_result(self): |
|
448 | 448 | """test unicode apply results""" |
|
449 | 449 | v = self.client[-1] |
|
450 | 450 | r = v.apply_sync(lambda : u'é') |
|
451 | 451 | self.assertEquals(r, u'é') |
|
452 | 452 | |
|
453 | 453 | def test_unicode_apply_arg(self): |
|
454 | 454 | """test passing unicode arguments to apply""" |
|
455 | 455 | v = self.client[-1] |
|
456 | 456 | |
|
457 | 457 | @interactive |
|
458 | 458 | def check_unicode(a, check): |
|
459 | 459 | assert isinstance(a, unicode), "%r is not unicode"%a |
|
460 | 460 | assert isinstance(check, bytes), "%r is not bytes"%check |
|
461 | 461 | assert a.encode('utf8') == check, "%s != %s"%(a,check) |
|
462 | 462 | |
|
463 | 463 | for s in [ u'é', u'ßø®∫',u'asdf' ]: |
|
464 | 464 | try: |
|
465 | 465 | v.apply_sync(check_unicode, s, s.encode('utf8')) |
|
466 | 466 | except error.RemoteError as e: |
|
467 | 467 | if e.ename == 'AssertionError': |
|
468 | 468 | self.fail(e.evalue) |
|
469 | 469 | else: |
|
470 | 470 | raise e |
|
471 | 471 | |
|
472 | 472 | def test_map_reference(self): |
|
473 | 473 | """view.map(<Reference>, *seqs) should work""" |
|
474 | 474 | v = self.client[:] |
|
475 | 475 | v.scatter('n', self.client.ids, flatten=True) |
|
476 | 476 | v.execute("f = lambda x,y: x*y") |
|
477 | 477 | rf = pmod.Reference('f') |
|
478 | 478 | nlist = list(range(10)) |
|
479 | 479 | mlist = nlist[::-1] |
|
480 | 480 | expected = [ m*n for m,n in zip(mlist, nlist) ] |
|
481 | 481 | result = v.map_sync(rf, mlist, nlist) |
|
482 | 482 | self.assertEquals(result, expected) |
|
483 | 483 | |
|
484 | 484 | def test_apply_reference(self): |
|
485 | 485 | """view.apply(<Reference>, *args) should work""" |
|
486 | 486 | v = self.client[:] |
|
487 | 487 | v.scatter('n', self.client.ids, flatten=True) |
|
488 | 488 | v.execute("f = lambda x: n*x") |
|
489 | 489 | rf = pmod.Reference('f') |
|
490 | 490 | result = v.apply_sync(rf, 5) |
|
491 | 491 | expected = [ 5*id for id in self.client.ids ] |
|
492 | 492 | self.assertEquals(result, expected) |
|
493 | 493 | |
|
494 | def test_eval_reference(self): | |
|
495 | v = self.client[self.client.ids[0]] | |
|
496 | v['g'] = range(5) | |
|
497 | rg = pmod.Reference('g[0]') | |
|
498 | echo = lambda x:x | |
|
499 | self.assertEquals(v.apply_sync(echo, rg), 0) | |
|
500 | ||
|
501 | def test_reference_nameerror(self): | |
|
502 | v = self.client[self.client.ids[0]] | |
|
503 | r = pmod.Reference('elvis_has_left') | |
|
504 | echo = lambda x:x | |
|
505 | self.assertRaisesRemote(NameError, v.apply_sync, echo, r) | |
|
506 | ||
|
507 |
@@ -1,153 +1,151 b'' | |||
|
1 | 1 | # encoding: utf-8 |
|
2 | 2 | |
|
3 | 3 | """Pickle related utilities. Perhaps this should be called 'can'.""" |
|
4 | 4 | |
|
5 | 5 | __docformat__ = "restructuredtext en" |
|
6 | 6 | |
|
7 | 7 | #------------------------------------------------------------------------------- |
|
8 | 8 | # Copyright (C) 2008-2011 The IPython Development Team |
|
9 | 9 | # |
|
10 | 10 | # Distributed under the terms of the BSD License. The full license is in |
|
11 | 11 | # the file COPYING, distributed as part of this software. |
|
12 | 12 | #------------------------------------------------------------------------------- |
|
13 | 13 | |
|
14 | 14 | #------------------------------------------------------------------------------- |
|
15 | 15 | # Imports |
|
16 | 16 | #------------------------------------------------------------------------------- |
|
17 | 17 | |
|
18 | 18 | import copy |
|
19 | 19 | import sys |
|
20 | 20 | from types import FunctionType |
|
21 | 21 | |
|
22 | 22 | import codeutil |
|
23 | 23 | |
|
24 | 24 | #------------------------------------------------------------------------------- |
|
25 | 25 | # Classes |
|
26 | 26 | #------------------------------------------------------------------------------- |
|
27 | 27 | |
|
28 | 28 | |
|
29 | 29 | class CannedObject(object): |
|
30 | 30 | def __init__(self, obj, keys=[]): |
|
31 | 31 | self.keys = keys |
|
32 | 32 | self.obj = copy.copy(obj) |
|
33 | 33 | for key in keys: |
|
34 | 34 | setattr(self.obj, key, can(getattr(obj, key))) |
|
35 | 35 | |
|
36 | 36 | |
|
37 | 37 | def getObject(self, g=None): |
|
38 | 38 | if g is None: |
|
39 | 39 | g = globals() |
|
40 | 40 | for key in self.keys: |
|
41 | 41 | setattr(self.obj, key, uncan(getattr(self.obj, key), g)) |
|
42 | 42 | return self.obj |
|
43 | 43 | |
|
44 | 44 | class Reference(CannedObject): |
|
45 | 45 | """object for wrapping a remote reference by name.""" |
|
46 | 46 | def __init__(self, name): |
|
47 | 47 | if not isinstance(name, basestring): |
|
48 | 48 | raise TypeError("illegal name: %r"%name) |
|
49 | 49 | self.name = name |
|
50 | 50 | |
|
51 | 51 | def __repr__(self): |
|
52 | 52 | return "<Reference: %r>"%self.name |
|
53 | 53 | |
|
54 | 54 | def getObject(self, g=None): |
|
55 | 55 | if g is None: |
|
56 | 56 | g = globals() |
|
57 |
|
|
|
58 |
|
|
|
59 | except KeyError: | |
|
60 | raise NameError("name %r is not defined"%self.name) | |
|
57 | ||
|
58 | return eval(self.name, g) | |
|
61 | 59 | |
|
62 | 60 | |
|
63 | 61 | class CannedFunction(CannedObject): |
|
64 | 62 | |
|
65 | 63 | def __init__(self, f): |
|
66 | 64 | self._checkType(f) |
|
67 | 65 | self.code = f.func_code |
|
68 | 66 | self.defaults = f.func_defaults |
|
69 | 67 | self.module = f.__module__ or '__main__' |
|
70 | 68 | self.__name__ = f.__name__ |
|
71 | 69 | |
|
72 | 70 | def _checkType(self, obj): |
|
73 | 71 | assert isinstance(obj, FunctionType), "Not a function type" |
|
74 | 72 | |
|
75 | 73 | def getObject(self, g=None): |
|
76 | 74 | # try to load function back into its module: |
|
77 | 75 | if not self.module.startswith('__'): |
|
78 | 76 | try: |
|
79 | 77 | __import__(self.module) |
|
80 | 78 | except ImportError: |
|
81 | 79 | pass |
|
82 | 80 | else: |
|
83 | 81 | g = sys.modules[self.module].__dict__ |
|
84 | 82 | |
|
85 | 83 | if g is None: |
|
86 | 84 | g = globals() |
|
87 | 85 | newFunc = FunctionType(self.code, g, self.__name__, self.defaults) |
|
88 | 86 | return newFunc |
|
89 | 87 | |
|
90 | 88 | #------------------------------------------------------------------------------- |
|
91 | 89 | # Functions |
|
92 | 90 | #------------------------------------------------------------------------------- |
|
93 | 91 | |
|
94 | 92 | def can(obj): |
|
95 | 93 | # import here to prevent module-level circular imports |
|
96 | 94 | from IPython.parallel import dependent |
|
97 | 95 | if isinstance(obj, dependent): |
|
98 | 96 | keys = ('f','df') |
|
99 | 97 | return CannedObject(obj, keys=keys) |
|
100 | 98 | elif isinstance(obj, FunctionType): |
|
101 | 99 | return CannedFunction(obj) |
|
102 | 100 | elif isinstance(obj,dict): |
|
103 | 101 | return canDict(obj) |
|
104 | 102 | elif isinstance(obj, (list,tuple)): |
|
105 | 103 | return canSequence(obj) |
|
106 | 104 | else: |
|
107 | 105 | return obj |
|
108 | 106 | |
|
109 | 107 | def canDict(obj): |
|
110 | 108 | if isinstance(obj, dict): |
|
111 | 109 | newobj = {} |
|
112 | 110 | for k, v in obj.iteritems(): |
|
113 | 111 | newobj[k] = can(v) |
|
114 | 112 | return newobj |
|
115 | 113 | else: |
|
116 | 114 | return obj |
|
117 | 115 | |
|
118 | 116 | def canSequence(obj): |
|
119 | 117 | if isinstance(obj, (list, tuple)): |
|
120 | 118 | t = type(obj) |
|
121 | 119 | return t([can(i) for i in obj]) |
|
122 | 120 | else: |
|
123 | 121 | return obj |
|
124 | 122 | |
|
125 | 123 | def uncan(obj, g=None): |
|
126 | 124 | if isinstance(obj, CannedObject): |
|
127 | 125 | return obj.getObject(g) |
|
128 | 126 | elif isinstance(obj,dict): |
|
129 | 127 | return uncanDict(obj, g) |
|
130 | 128 | elif isinstance(obj, (list,tuple)): |
|
131 | 129 | return uncanSequence(obj, g) |
|
132 | 130 | else: |
|
133 | 131 | return obj |
|
134 | 132 | |
|
135 | 133 | def uncanDict(obj, g=None): |
|
136 | 134 | if isinstance(obj, dict): |
|
137 | 135 | newobj = {} |
|
138 | 136 | for k, v in obj.iteritems(): |
|
139 | 137 | newobj[k] = uncan(v,g) |
|
140 | 138 | return newobj |
|
141 | 139 | else: |
|
142 | 140 | return obj |
|
143 | 141 | |
|
144 | 142 | def uncanSequence(obj, g=None): |
|
145 | 143 | if isinstance(obj, (list, tuple)): |
|
146 | 144 | t = type(obj) |
|
147 | 145 | return t([uncan(i,g) for i in obj]) |
|
148 | 146 | else: |
|
149 | 147 | return obj |
|
150 | 148 | |
|
151 | 149 | |
|
152 | 150 | def rebindFunctionGlobals(f, glbls): |
|
153 | 151 | return FunctionType(f.func_code, glbls) |
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