Mercurial > cpython-lru_cache-weakref

annotate Lib/distutils/command/install_lib.py @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents d296e6bb17e5
children f12491171638
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # created 1999/03/13, Greg Ward
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2
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3 __revision__ = "$Id$"
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4
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5 import sys, os, string
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6 from types import IntType
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7 from distutils.core import Command
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8 from distutils.errors import DistutilsOptionError
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9 from distutils.dir_util import copy_tree
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10
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11 class install_lib (Command):
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12
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13 description = "install all Python modules (extensions and pure Python)"
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14
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15 # The byte-compilation options are a tad confusing. Here are the
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16 # possible scenarios:
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17 # 1) no compilation at all (--no-compile --no-optimize)
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18 # 2) compile .pyc only (--compile --no-optimize; default)
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19 # 3) compile .pyc and "level 1" .pyo (--compile --optimize)
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20 # 4) compile "level 1" .pyo only (--no-compile --optimize)
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21 # 5) compile .pyc and "level 2" .pyo (--compile --optimize-more)
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22 # 6) compile "level 2" .pyo only (--no-compile --optimize-more)
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23 #
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24 # The UI for this is two option, 'compile' and 'optimize'.
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25 # 'compile' is strictly boolean, and only decides whether to
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26 # generate .pyc files. 'optimize' is three-way (0, 1, or 2), and
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27 # decides both whether to generate .pyo files and what level of
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28 # optimization to use.
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29
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30 user_options = [
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31 ('install-dir=', 'd', "directory to install to"),
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32 ('build-dir=','b', "build directory (where to install from)"),
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33 ('force', 'f', "force installation (overwrite existing files)"),
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34 ('compile', 'c', "compile .py to .pyc [default]"),
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35 ('no-compile', None, "don't compile .py files"),
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36 ('optimize=', 'O',
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37 "also compile with optimization: -O1 for \"python -O\", "
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38 "-O2 for \"python -OO\", and -O0 to disable [default: -O0]"),
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39 ('skip-build', None, "skip the build steps"),
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40 ]
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41
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42 boolean_options = ['force', 'compile', 'skip-build']
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43 negative_opt = {'no-compile' : 'compile'}
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44
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45
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46 def initialize_options (self):
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47 # let the 'install' command dictate our installation directory
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48 self.install_dir = None
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49 self.build_dir = None
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50 self.force = 0
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51 self.compile = None
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52 self.optimize = None
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53 self.skip_build = None
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54
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55 def finalize_options (self):
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56
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57 # Get all the information we need to install pure Python modules
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58 # from the umbrella 'install' command -- build (source) directory,
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59 # install (target) directory, and whether to compile .py files.
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60 self.set_undefined_options('install',
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61 ('build_lib', 'build_dir'),
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62 ('install_lib', 'install_dir'),
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63 ('force', 'force'),
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64 ('compile', 'compile'),
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65 ('optimize', 'optimize'),
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66 ('skip_build', 'skip_build'),
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67 )
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68
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69 if self.compile is None:
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70 self.compile = 1
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71 if self.optimize is None:
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72 self.optimize = 0
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73
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74 if type(self.optimize) is not IntType:
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75 try:
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76 self.optimize = int(self.optimize)
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77 assert 0 <= self.optimize <= 2
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78 except (ValueError, AssertionError):
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79 raise DistutilsOptionError, "optimize must be 0, 1, or 2"
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80
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81 def run (self):
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82
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83 # Make sure we have built everything we need first
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84 self.build()
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85
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86 # Install everything: simply dump the entire contents of the build
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87 # directory to the installation directory (that's the beauty of
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88 # having a build directory!)
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89 outfiles = self.install()
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90
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91 # (Optionally) compile .py to .pyc
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92 if outfiles is not None and self.distribution.has_pure_modules():
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93 self.byte_compile(outfiles)
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94
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95 # run ()
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96
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97
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98 # -- Top-level worker functions ------------------------------------
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99 # (called from 'run()')
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100
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101 def build (self):
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102 if not self.skip_build:
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103 if self.distribution.has_pure_modules():
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104 self.run_command('build_py')
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105 if self.distribution.has_ext_modules():
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106 self.run_command('build_ext')
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107
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108 def install (self):
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109 if os.path.isdir(self.build_dir):
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110 outfiles = self.copy_tree(self.build_dir, self.install_dir)
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111 else:
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112 self.warn("'%s' does not exist -- no Python modules to install" %
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113 self.build_dir)
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114 return
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115 return outfiles
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116
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117 def byte_compile (self, files):
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118 from distutils.util import byte_compile
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119
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120 # Get the "--root" directory supplied to the "install" command,
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121 # and use it as a prefix to strip off the purported filename
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122 # encoded in bytecode files. This is far from complete, but it
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123 # should at least generate usable bytecode in RPM distributions.
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124 install_root = self.get_finalized_command('install').root
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125
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126 if self.compile:
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127 byte_compile(files, optimize=0,
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128 force=self.force,
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129 prefix=install_root,
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130 verbose=self.verbose, dry_run=self.dry_run)
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131 if self.optimize > 0:
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132 byte_compile(files, optimize=self.optimize,
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133 force=self.force,
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134 prefix=install_root,
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135 verbose=self.verbose, dry_run=self.dry_run)
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136
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137
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138 # -- Utility methods -----------------------------------------------
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139
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140 def _mutate_outputs (self, has_any, build_cmd, cmd_option, output_dir):
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141
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142 if not has_any:
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143 return []
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144
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145 build_cmd = self.get_finalized_command(build_cmd)
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146 build_files = build_cmd.get_outputs()
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147 build_dir = getattr(build_cmd, cmd_option)
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148
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149 prefix_len = len(build_dir) + len(os.sep)
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150 outputs = []
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151 for file in build_files:
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152 outputs.append(os.path.join(output_dir, file[prefix_len:]))
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153
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154 return outputs
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155
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156 # _mutate_outputs ()
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157
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158 def _bytecode_filenames (self, py_filenames):
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159 bytecode_files = []
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160 for py_file in py_filenames:
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161 if self.compile:
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162 bytecode_files.append(py_file + "c")
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163 if self.optimize > 0:
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164 bytecode_files.append(py_file + "o")
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165
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166 return bytecode_files
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167
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168
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169 # -- External interface --------------------------------------------
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170 # (called by outsiders)
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171
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172 def get_outputs (self):
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173 """Return the list of files that would be installed if this command
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174 were actually run. Not affected by the "dry-run" flag or whether
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175 modules have actually been built yet.
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176 """
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177 pure_outputs = \
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178 self._mutate_outputs(self.distribution.has_pure_modules(),
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179 'build_py', 'build_lib',
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180 self.install_dir)
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181 if self.compile:
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182 bytecode_outputs = self._bytecode_filenames(pure_outputs)
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183 else:
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184 bytecode_outputs = []
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185
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186 ext_outputs = \
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187 self._mutate_outputs(self.distribution.has_ext_modules(),
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188 'build_ext', 'build_lib',
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189 self.install_dir)
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190
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191 return pure_outputs + bytecode_outputs + ext_outputs
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192
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193 # get_outputs ()
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194
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195 def get_inputs (self):
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196 """Get the list of files that are input to this command, ie. the
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197 files that get installed as they are named in the build tree.
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198 The files in this list correspond one-to-one to the output
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199 filenames returned by 'get_outputs()'.
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200 """
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201 inputs = []
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202
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203 if self.distribution.has_pure_modules():
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204 build_py = self.get_finalized_command('build_py')
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205 inputs.extend(build_py.get_outputs())
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206
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207 if self.distribution.has_ext_modules():
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208 build_ext = self.get_finalized_command('build_ext')
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209 inputs.extend(build_ext.get_outputs())
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210
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211 return inputs
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212
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213 # class install_lib