Mercurial > cpython-lru_cache-weakref

annotate Lib/distutils/command/build.py @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents f9fd1795fcf7
children
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1 """distutils.command.build
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2
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3 Implements the Distutils 'build' command."""
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4
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5 __revision__ = "$Id$"
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6
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7 import sys, os
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8
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9 from distutils.util import get_platform
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10 from distutils.core import Command
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11 from distutils.errors import DistutilsOptionError
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12
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13 def show_compilers():
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14 from distutils.ccompiler import show_compilers
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15 show_compilers()
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16
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17 class build(Command):
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18
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19 description = "build everything needed to install"
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20
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21 user_options = [
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22 ('build-base=', 'b',
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23 "base directory for build library"),
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24 ('build-purelib=', None,
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25 "build directory for platform-neutral distributions"),
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26 ('build-platlib=', None,
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27 "build directory for platform-specific distributions"),
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28 ('build-lib=', None,
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29 "build directory for all distribution (defaults to either " +
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30 "build-purelib or build-platlib"),
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31 ('build-scripts=', None,
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32 "build directory for scripts"),
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33 ('build-temp=', 't',
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34 "temporary build directory"),
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35 ('plat-name=', 'p',
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36 "platform name to build for, if supported "
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37 "(default: %s)" % get_platform()),
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38 ('compiler=', 'c',
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39 "specify the compiler type"),
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40 ('debug', 'g',
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41 "compile extensions and libraries with debugging information"),
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42 ('force', 'f',
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43 "forcibly build everything (ignore file timestamps)"),
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44 ('executable=', 'e',
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45 "specify final destination interpreter path (build.py)"),
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46 ]
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47
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48 boolean_options = ['debug', 'force']
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49
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50 help_options = [
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51 ('help-compiler', None,
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52 "list available compilers", show_compilers),
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53 ]
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54
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55 def initialize_options(self):
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56 self.build_base = 'build'
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57 # these are decided only after 'build_base' has its final value
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58 # (unless overridden by the user or client)
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59 self.build_purelib = None
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60 self.build_platlib = None
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61 self.build_lib = None
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62 self.build_temp = None
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63 self.build_scripts = None
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64 self.compiler = None
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65 self.plat_name = None
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66 self.debug = None
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67 self.force = 0
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68 self.executable = None
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69
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70 def finalize_options(self):
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71 if self.plat_name is None:
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72 self.plat_name = get_platform()
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73 else:
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74 # plat-name only supported for windows (other platforms are
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75 # supported via ./configure flags, if at all). Avoid misleading
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76 # other platforms.
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77 if os.name != 'nt':
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78 raise DistutilsOptionError(
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79 "--plat-name only supported on Windows (try "
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80 "using './configure --help' on your platform)")
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81
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82 plat_specifier = ".%s-%s" % (self.plat_name, sys.version[0:3])
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83
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84 # Make it so Python 2.x and Python 2.x with --with-pydebug don't
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85 # share the same build directories. Doing so confuses the build
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86 # process for C modules
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87 if hasattr(sys, 'gettotalrefcount'):
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88 plat_specifier += '-pydebug'
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89
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90 # 'build_purelib' and 'build_platlib' just default to 'lib' and
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91 # 'lib.<plat>' under the base build directory. We only use one of
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92 # them for a given distribution, though --
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93 if self.build_purelib is None:
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94 self.build_purelib = os.path.join(self.build_base, 'lib')
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95 if self.build_platlib is None:
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96 self.build_platlib = os.path.join(self.build_base,
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97 'lib' + plat_specifier)
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98
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99 # 'build_lib' is the actual directory that we will use for this
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100 # particular module distribution -- if user didn't supply it, pick
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101 # one of 'build_purelib' or 'build_platlib'.
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102 if self.build_lib is None:
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103 if self.distribution.ext_modules:
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104 self.build_lib = self.build_platlib
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105 else:
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106 self.build_lib = self.build_purelib
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107
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108 # 'build_temp' -- temporary directory for compiler turds,
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109 # "build/temp.<plat>"
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110 if self.build_temp is None:
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111 self.build_temp = os.path.join(self.build_base,
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112 'temp' + plat_specifier)
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113 if self.build_scripts is None:
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114 self.build_scripts = os.path.join(self.build_base,
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115 'scripts-' + sys.version[0:3])
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116
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117 if self.executable is None:
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118 self.executable = os.path.normpath(sys.executable)
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119
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120 def run(self):
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121 # Run all relevant sub-commands. This will be some subset of:
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122 # - build_py - pure Python modules
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123 # - build_clib - standalone C libraries
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124 # - build_ext - Python extensions
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125 # - build_scripts - (Python) scripts
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126 for cmd_name in self.get_sub_commands():
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127 self.run_command(cmd_name)
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128
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129 # -- Predicates for the sub-command list ---------------------------
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130
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131 def has_pure_modules (self):
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132 return self.distribution.has_pure_modules()
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133
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134 def has_c_libraries (self):
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135 return self.distribution.has_c_libraries()
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136
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137 def has_ext_modules (self):
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138 return self.distribution.has_ext_modules()
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139
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140 def has_scripts (self):
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141 return self.distribution.has_scripts()
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142
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143 sub_commands = [('build_py', has_pure_modules),
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144 ('build_clib', has_c_libraries),
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145 ('build_ext', has_ext_modules),
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146 ('build_scripts', has_scripts),
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147 ]