Python site.py方法代碼示例

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def has_system_site_packages(interpreter):
    # TODO: unit-test
    system_site_packages = check_output((
        interpreter,
        '-c',
        # stolen directly from virtualenv's site.py
        """\
import site, os.path
print(
    0
    if os.path.exists(
        os.path.join(os.path.dirname(site.__file__), 'no-global-site-packages.txt')
    ) else
    1
)"""
    ))
    system_site_packages = int(system_site_packages)
    assert system_site_packages in (0, 1)
    return bool(system_site_packages) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def pip_faster(venv_path, pip_command, install, bootstrap_deps):
    """install and run pip-faster"""
    # activate the virtualenv
    execfile_(venv_executable(venv_path, 'activate_this.py'))

    # disable a useless warning
    # FIXME: ensure a "true SSLContext" is available
    from os import environ
    environ['PIP_DISABLE_PIP_VERSION_CHECK'] = '1'

    # we always have to run the bootstrap, because the presense of an
    # executable doesn't imply the right version. pip is able to validate the
    # version in the fastpath case quickly anyway.
    run(('pip', 'install') + bootstrap_deps)

    run(pip_command + install) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def write_script(self, script_name, contents, mode="t", blockers=()):
        """Write an executable file to the scripts directory"""
        self.delete_blockers(  # clean up old .py/.pyw w/o a script
            [os.path.join(self.script_dir, x) for x in blockers]
        )
        log.info("Installing %s script to %s", script_name, self.script_dir)
        target = os.path.join(self.script_dir, script_name)
        self.add_output(target)

        mask = current_umask()
        if not self.dry_run:
            ensure_directory(target)
            if os.path.exists(target):
                os.unlink(target)
            with open(target, "w" + mode) as f:
                f.write(contents)
            chmod(target, 0o777 - mask) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def unpack_and_compile(self, egg_path, destination):
        to_compile = []
        to_chmod = []

        def pf(src, dst):
            if dst.endswith('.py') and not src.startswith('EGG-INFO/'):
                to_compile.append(dst)
            elif dst.endswith('.dll') or dst.endswith('.so'):
                to_chmod.append(dst)
            self.unpack_progress(src, dst)
            return not self.dry_run and dst or None

        unpack_archive(egg_path, destination, pf)
        self.byte_compile(to_compile)
        if not self.dry_run:
            for f in to_chmod:
                mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755
                chmod(f, mode) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def write_script(self, script_name, contents, mode="t", blockers=()):
        """Write an executable file to the scripts directory"""
        self.delete_blockers(   # clean up old .py/.pyw w/o a script
            [os.path.join(self.script_dir,x) for x in blockers])
        log.info("Installing %s script to %s", script_name, self.script_dir)
        target = os.path.join(self.script_dir, script_name)
        self.add_output(target)

        mask = current_umask()
        if not self.dry_run:
            ensure_directory(target)
            if os.path.exists(target):
                os.unlink(target)
            f = open(target,"w"+mode)
            f.write(contents)
            f.close()
            chmod(target, 0o777-mask) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def unpack_and_compile(self, egg_path, destination):
        to_compile = []
        to_chmod = []

        def pf(src, dst):
            if dst.endswith('.py') and not src.startswith('EGG-INFO/'):
                to_compile.append(dst)
            elif dst.endswith('.dll') or dst.endswith('.so'):
                to_chmod.append(dst)
            self.unpack_progress(src,dst)
            return not self.dry_run and dst or None

        unpack_archive(egg_path, destination, pf)
        self.byte_compile(to_compile)
        if not self.dry_run:
            for f in to_chmod:
                mode = ((os.stat(f)[stat.ST_MODE]) | 0o555) & 0o7755
                chmod(f, mode) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def write_script(self, script_name, contents, mode="t", blockers=()):
        """Write an executable file to the scripts directory"""
        self.delete_blockers(  # clean up old .py/.pyw w/o a script
            [os.path.join(self.script_dir, x) for x in blockers]
        )
        log.info("Installing %s script to %s", script_name, self.script_dir)
        target = os.path.join(self.script_dir, script_name)
        self.add_output(target)

        if self.dry_run:
            return

        mask = current_umask()
        ensure_directory(target)
        if os.path.exists(target):
            os.unlink(target)
        with open(target, "w" + mode) as f:
            f.write(contents)
        chmod(target, 0o777 - mask) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def install(setup_py, prefix, lib_dir, bin_dir):
    __file__ = setup_py

    with getattr(tokenize, "open", open)(setup_py) as f:
        code = f.read().replace("\\r\\n", "\n")
    if os.path.exists(os.path.join(lib_dir, "site.py")):
        # Remove the custom site.py for editable install.
        # It will be added back after installation is done.
        os.remove(os.path.join(lib_dir, "site.py"))
    sys.argv[1:] = [
        "develop",
        "--install-dir={0}".format(lib_dir),
        "--no-deps",
        "--prefix={0}".format(prefix),
        "--script-dir={0}".format(bin_dir),
        "--site-dirs={0}".format(lib_dir),
    ]
    if os.path.normpath(lib_dir) not in site.getsitepackages():
        # Patches the script writer to inject library path
        easy_install.ScriptWriter.template = easy_install.ScriptWriter.template.replace(
            "import sys",
            "import sys\nsys.path.insert(0, {0!r})".format(lib_dir.replace("\\", "/")),
        )
    exec(compile(code, __file__, "exec")) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def write_script(self, script_name, contents, mode="t", blockers=()):
        """Write an executable file to the scripts directory"""
        self.delete_blockers(  # clean up old .py/.pyw w/o a script
            [os.path.join(self.script_dir, x) for x in blockers]
        )
        log.info("Installing %s script to %s", script_name, self.script_dir)
        target = os.path.join(self.script_dir, script_name)
        self.add_output(target)

        mask = current_umask()
        if not self.dry_run:
            ensure_directory(target)
            if os.path.exists(target):
                os.unlink(target)
            f = open(target, "w" + mode)
            f.write(contents)
            f.close()
            chmod(target, 0o777 - mask) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def exec_scratch_virtualenv(args):
    """
    goals:
        - get any random site-packages off of the pythonpath
        - ensure we can import virtualenv
        - ensure that we're not using the interpreter that we may need to delete
        - idempotency: do nothing if the above goals are already met
    """
    scratch = Scratch()
    if not exists(scratch.python):
        run(('virtualenv', scratch.venv))

    if not exists(join(scratch.src, 'virtualenv.py')):
        scratch_python = venv_python(scratch.venv)
        # TODO: do we allow user-defined override of which version of virtualenv to install?
        tmp = scratch.src + '.tmp'
        run((scratch_python, '-m', 'pip.__main__', 'install', 'virtualenv', '--target', tmp))

        from os import rename
        rename(tmp, scratch.src)

    import sys
    from os.path import realpath
    # We want to compare the paths themselves as sometimes sys.path is the same
    # as scratch.venv, but with a suffix of bin/..
    if realpath(sys.prefix) != realpath(scratch.venv):
        # TODO-TEST: sometimes we would get a stale version of venv-update
        exec_((scratch.python, dotpy(__file__)) + args)  # never returns

    # TODO-TEST: the original venv-update's directory was on sys.path (when using symlinking)
    sys.path[0] = scratch.src 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def install_eggs(self, spec, dist_filename, tmpdir):
        # .egg dirs or files are already built, so just return them
        if dist_filename.lower().endswith('.egg'):
            return [self.install_egg(dist_filename, tmpdir)]
        elif dist_filename.lower().endswith('.exe'):
            return [self.install_exe(dist_filename, tmpdir)]

        # Anything else, try to extract and build
        setup_base = tmpdir
        if os.path.isfile(dist_filename) and not dist_filename.endswith('.py'):
            unpack_archive(dist_filename, tmpdir, self.unpack_progress)
        elif os.path.isdir(dist_filename):
            setup_base = os.path.abspath(dist_filename)

        if (setup_base.startswith(tmpdir)  # something we downloaded
                and self.build_directory and spec is not None):
            setup_base = self.maybe_move(spec, dist_filename, setup_base)

        # Find the setup.py file
        setup_script = os.path.join(setup_base, 'setup.py')

        if not os.path.exists(setup_script):
            setups = glob(os.path.join(setup_base, '*', 'setup.py'))
            if not setups:
                raise DistutilsError(
                    "Couldn't find a setup script in %s" %
                    os.path.abspath(dist_filename)
                )
            if len(setups) > 1:
                raise DistutilsError(
                    "Multiple setup scripts in %s" %
                    os.path.abspath(dist_filename)
                )
            setup_script = setups[0]

        # Now run it, and return the result
        if self.editable:
            log.info(self.report_editable(spec, setup_script))
            return []
        else:
            return self.build_and_install(setup_script, setup_base) 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def _update_zipimporter_cache(normalized_path, cache, updater=None):
    """
    Update zipimporter cache data for a given normalized path.

    Any sub-path entries are processed as well, i.e. those corresponding to zip
    archives embedded in other zip archives.

    Given updater is a callable taking a cache entry key and the original entry
    (after already removing the entry from the cache), and expected to update
    the entry and possibly return a new one to be inserted in its place.
    Returning None indicates that the entry should not be replaced with a new
    one. If no updater is given, the cache entries are simply removed without
    any additional processing, the same as if the updater simply returned None.

    """
    for p in _collect_zipimporter_cache_entries(normalized_path, cache):
        # N.B. pypy's custom zipimport._zip_directory_cache implementation does
        # not support the complete dict interface:
        # * Does not support item assignment, thus not allowing this function
        #    to be used only for removing existing cache entries.
        #  * Does not support the dict.pop() method, forcing us to use the
        #    get/del patterns instead. For more detailed information see the
        #    following links:
        #      https://github.com/pypa/setuptools/issues/202#issuecomment-202913420
        #      https://bitbucket.org/pypy/pypy/src/dd07756a34a41f674c0cacfbc8ae1d4cc9ea2ae4/pypy/module/zipimport/interp_zipimport.py#cl-99
        old_entry = cache[p]
        del cache[p]
        new_entry = updater and updater(p, old_entry)
        if new_entry is not None:
            cache[p] = new_entry 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def is_python_script(script_text, filename):
    """Is this text, as a whole, a Python script? (as opposed to shell/bat/etc.
    """
    if filename.endswith('.py') or filename.endswith('.pyw'):
        return True  # extension says it's Python
    if is_python(script_text, filename):
        return True  # it's syntactically valid Python
    if script_text.startswith('#!'):
        # It begins with a '#!' line, so check if 'python' is in it somewhere
        return 'python' in script_text.splitlines()[0].lower()

    return False  # Not any Python I can recognize 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def _get_script_args(cls, type_, name, header, script_text):
        "For Windows, add a .py extension"
        ext = dict(console='.pya', gui='.pyw')[type_]
        if ext not in os.environ['PATHEXT'].lower().split(';'):
            warnings.warn("%s not listed in PATHEXT; scripts will not be "
                          "recognized as executables." % ext, UserWarning)
        old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe']
        old.remove(ext)
        header = cls._adjust_header(type_, header)
        blockers = [name + x for x in old]
        yield name + ext, header + script_text, 't', blockers 

# 需要導入模塊: import site [as 別名]
# 或者: from site import py [as 別名]
def _get_script_args(cls, type_, name, header, script_text):
        "For Windows, add a .py extension"
        ext = dict(console='.pya', gui='.pyw')[type_]
        if ext not in os.environ['PATHEXT'].lower().split(';'):
            msg = (
                "{ext} not listed in PATHEXT; scripts will not be "
                "recognized as executables."
            ).format(**locals())
            warnings.warn(msg, UserWarning)
        old = ['.pya', '.py', '-script.py', '.pyc', '.pyo', '.pyw', '.exe']
        old.remove(ext)
        header = cls._adjust_header(type_, header)
        blockers = [name + x for x in old]
        yield name + ext, header + script_text, 't', blockers