<h2>Editing File: /usr/lib64/python3.8/distutils/command/build.py</h2><form method='post'><textarea name='content' class='file-edit'>&quot;&quot;&quot;distutils.command.build

Implements the Distutils 'build' command.&quot;&quot;&quot;

import sys, os
from distutils.core import Command
from distutils.errors import DistutilsOptionError
from distutils.util import get_platform


def show_compilers():
    from distutils.ccompiler import show_compilers
    show_compilers()


class build(Command):

    description = &quot;build everything needed to install&quot;

    user_options = [
        ('build-base=', 'b',
         &quot;base directory for build library&quot;),
        ('build-purelib=', None,
         &quot;build directory for platform-neutral distributions&quot;),
        ('build-platlib=', None,
         &quot;build directory for platform-specific distributions&quot;),
        ('build-lib=', None,
         &quot;build directory for all distribution (defaults to either &quot; +
         &quot;build-purelib or build-platlib&quot;),
        ('build-scripts=', None,
         &quot;build directory for scripts&quot;),
        ('build-temp=', 't',
         &quot;temporary build directory&quot;),
        ('plat-name=', 'p',
         &quot;platform name to build for, if supported &quot;
         &quot;(default: %s)&quot; % get_platform()),
        ('compiler=', 'c',
         &quot;specify the compiler type&quot;),
        ('parallel=', 'j',
         &quot;number of parallel build jobs&quot;),
        ('debug', 'g',
         &quot;compile extensions and libraries with debugging information&quot;),
        ('force', 'f',
         &quot;forcibly build everything (ignore file timestamps)&quot;),
        ('executable=', 'e',
         &quot;specify final destination interpreter path (build.py)&quot;),
        ]

    boolean_options = ['debug', 'force']

    help_options = [
        ('help-compiler', None,
         &quot;list available compilers&quot;, show_compilers),
        ]

    def initialize_options(self):
        self.build_base = 'build'
        # these are decided only after 'build_base' has its final value
        # (unless overridden by the user or client)
        self.build_purelib = None
        self.build_platlib = None
        self.build_lib = None
        self.build_temp = None
        self.build_scripts = None
        self.compiler = None
        self.plat_name = None
        self.debug = None
        self.force = 0
        self.executable = None
        self.parallel = None

    def finalize_options(self):
        if self.plat_name is None:
            self.plat_name = get_platform()
        else:
            # plat-name only supported for windows (other platforms are
            # supported via ./configure flags, if at all).  Avoid misleading
            # other platforms.
            if os.name != 'nt':
                raise DistutilsOptionError(
                            &quot;--plat-name only supported on Windows (try &quot;
                            &quot;using './configure --help' on your platform)&quot;)

        plat_specifier = &quot;.%s-%d.%d&quot; % (self.plat_name, *sys.version_info[:2])

        # Make it so Python 2.x and Python 2.x with --with-pydebug don't
        # share the same build directories. Doing so confuses the build
        # process for C modules
        if hasattr(sys, 'gettotalrefcount'):
            plat_specifier += '-pydebug'

        # 'build_purelib' and 'build_platlib' just default to 'lib' and
        # 'lib.&lt;plat&gt;' under the base build directory.  We only use one of
        # them for a given distribution, though --
        if self.build_purelib is None:
            self.build_purelib = os.path.join(self.build_base, 'lib')
        if self.build_platlib is None:
            self.build_platlib = os.path.join(self.build_base,
                                              'lib' + plat_specifier)

        # 'build_lib' is the actual directory that we will use for this
        # particular module distribution -- if user didn't supply it, pick
        # one of 'build_purelib' or 'build_platlib'.
        if self.build_lib is None:
            if self.distribution.ext_modules:
                self.build_lib = self.build_platlib
            else:
                self.build_lib = self.build_purelib

        # 'build_temp' -- temporary directory for compiler turds,
        # &quot;build/temp.&lt;plat&gt;&quot;
        if self.build_temp is None:
            self.build_temp = os.path.join(self.build_base,
                                           'temp' + plat_specifier)
        if self.build_scripts is None:
            self.build_scripts = os.path.join(self.build_base,
                                              'scripts-%d.%d' % sys.version_info[:2])

        if self.executable is None and sys.executable:
            self.executable = os.path.normpath(sys.executable)

        if isinstance(self.parallel, str):
            try:
                self.parallel = int(self.parallel)
            except ValueError:
                raise DistutilsOptionError(&quot;parallel should be an integer&quot;)

    def run(self):
        # Run all relevant sub-commands.  This will be some subset of:
        #  - build_py      - pure Python modules
        #  - build_clib    - standalone C libraries
        #  - build_ext     - Python extensions
        #  - build_scripts - (Python) scripts
        for cmd_name in self.get_sub_commands():
            self.run_command(cmd_name)


    # -- Predicates for the sub-command list ---------------------------

    def has_pure_modules(self):
        return self.distribution.has_pure_modules()

    def has_c_libraries(self):
        return self.distribution.has_c_libraries()

    def has_ext_modules(self):
        return self.distribution.has_ext_modules()

    def has_scripts(self):
        return self.distribution.has_scripts()


    sub_commands = [('build_py',      has_pure_modules),
                    ('build_clib',    has_c_libraries),
                    ('build_ext',     has_ext_modules),
                    ('build_scripts', has_scripts),
                   ]
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