File Manager

X7ROOT File Manager

Current Path: /lib/python2.7/site-packages/pip/_vendor/distlib

lib / python2.7 / site-packages / pip / _vendor / distlib /

?? ..
?? __init__.py(581 B)
?? __init__.pyc(1.31 KB)
?? __init__.pyo(1.31 KB)
?? _backport
?? compat.py(39.84 KB)
?? compat.pyc(38.78 KB)
?? compat.pyo(38.73 KB)
?? database.py(48.51 KB)
?? database.pyc(48.19 KB)
?? database.pyo(48.19 KB)
?? index.py(20.59 KB)
?? index.pyc(19.59 KB)
?? index.pyo(19.59 KB)
?? locators.py(49.82 KB)
?? locators.pyc(44.9 KB)
?? locators.pyo(44.85 KB)
?? manifest.py(14.46 KB)
?? manifest.pyc(11.87 KB)
?? manifest.pyo(11.71 KB)
?? markers.py(6.13 KB)
?? markers.pyc(7.98 KB)
?? markers.pyo(7.86 KB)
?? metadata.py(37.92 KB)
?? metadata.pyc(34.32 KB)
?? metadata.pyo(34.24 KB)
?? resources.py(10.51 KB)
?? resources.pyc(13.64 KB)
?? resources.pyo(13.64 KB)
?? scripts.py(14.87 KB)
?? scripts.pyc(12.17 KB)
?? scripts.pyo(12.17 KB)
?? util.py(51.75 KB)
?? util.pyc(55.54 KB)
?? util.pyo(55.05 KB)
?? version.py(23.16 KB)
?? version.pyc(25.78 KB)
?? version.pyo(25.69 KB)
?? wheel.py(38.2 KB)
?? wheel.pyc(30.43 KB)
?? wheel.pyo(30.35 KB)

Editing: scripts.py

# -*- coding: utf-8 -*-
#
# Copyright (C) 2013-2015 Vinay Sajip.
# Licensed to the Python Software Foundation under a contributor agreement.
# See LICENSE.txt and CONTRIBUTORS.txt.
#
from io import BytesIO
import logging
import os
import re
import struct
import sys

from .compat import sysconfig, detect_encoding, ZipFile
from .resources import finder
from .util import (FileOperator, get_export_entry, convert_path,
                   get_executable, in_venv)

logger = logging.getLogger(__name__)

_DEFAULT_MANIFEST = '''
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
 <assemblyIdentity version="1.0.0.0"
 processorArchitecture="X86"
 name="%s"
 type="win32"/>

<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
 <security>
 <requestedPrivileges>
 <requestedExecutionLevel level="asInvoker" uiAccess="false"/>
 </requestedPrivileges>
 </security>
 </trustInfo>
</assembly>'''.strip()

# check if Python is called on the first line with this expression
FIRST_LINE_RE = re.compile(b'^#!.*pythonw?[0-9.]*([ \t].*)?$')
SCRIPT_TEMPLATE = '''# -*- coding: utf-8 -*-
if __name__ == '__main__':
    import sys, re

def _resolve(module, func):
        __import__(module)
        mod = sys.modules[module]
        parts = func.split('.')
        result = getattr(mod, parts.pop(0))
        for p in parts:
            result = getattr(result, p)
        return result

try:
        sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])

func = _resolve('%(module)s', '%(func)s')
        rc = func() # None interpreted as 0
    except Exception as e:  # only supporting Python >= 2.6
        sys.stderr.write('%%s\\n' %% e)
        rc = 1
    sys.exit(rc)
'''

def _enquote_executable(executable):
    if ' ' in executable:
        # make sure we quote only the executable in case of env
        # for example /usr/bin/env "/dir with spaces/bin/jython"
        # instead of "/usr/bin/env /dir with spaces/bin/jython"
        # otherwise whole
        if executable.startswith('/usr/bin/env '):
            env, _executable = executable.split(' ', 1)
            if ' ' in _executable and not _executable.startswith('"'):
                executable = '%s "%s"' % (env, _executable)
        else:
            if not executable.startswith('"'):
                executable = '"%s"' % executable
    return executable

class ScriptMaker(object):
    """
    A class to copy or create scripts from source scripts or callable
    specifications.
    """
    script_template = SCRIPT_TEMPLATE

executable = None  # for shebangs

def __init__(self, source_dir, target_dir, add_launchers=True,
                 dry_run=False, fileop=None):
        self.source_dir = source_dir
        self.target_dir = target_dir
        self.add_launchers = add_launchers
        self.force = False
        self.clobber = False
        # It only makes sense to set mode bits on POSIX.
        self.set_mode = (os.name == 'posix') or (os.name == 'java' and
                                                 os._name == 'posix')
        self.variants = set(('', 'X.Y'))
        self._fileop = fileop or FileOperator(dry_run)

self._is_nt = os.name == 'nt' or (
            os.name == 'java' and os._name == 'nt')

def _get_alternate_executable(self, executable, options):
        if options.get('gui', False) and self._is_nt:  # pragma: no cover
            dn, fn = os.path.split(executable)
            fn = fn.replace('python', 'pythonw')
            executable = os.path.join(dn, fn)
        return executable

if sys.platform.startswith('java'):  # pragma: no cover
        def _is_shell(self, executable):
            """
            Determine if the specified executable is a script
            (contains a #! line)
            """
            try:
                with open(executable) as fp:
                    return fp.read(2) == '#!'
            except (OSError, IOError):
                logger.warning('Failed to open %s', executable)
                return False

def _fix_jython_executable(self, executable):
            if self._is_shell(executable):
                # Workaround for Jython is not needed on Linux systems.
                import java

if java.lang.System.getProperty('os.name') == 'Linux':
                    return executable
            elif executable.lower().endswith('jython.exe'):
                # Use wrapper exe for Jython on Windows
                return executable
            return '/usr/bin/env %s' % executable

def _get_shebang(self, encoding, post_interp=b'', options=None):
        enquote = True
        if self.executable:
            executable = self.executable
            enquote = False     # assume this will be taken care of
        elif not sysconfig.is_python_build():
            executable = get_executable()
        elif in_venv():  # pragma: no cover
            executable = os.path.join(sysconfig.get_path('scripts'),
                            'python%s' % sysconfig.get_config_var('EXE'))
        else:  # pragma: no cover
            executable = os.path.join(
                sysconfig.get_config_var('BINDIR'),
               'python%s%s' % (sysconfig.get_config_var('VERSION'),
                               sysconfig.get_config_var('EXE')))
        if options:
            executable = self._get_alternate_executable(executable, options)

if sys.platform.startswith('java'):  # pragma: no cover
            executable = self._fix_jython_executable(executable)
        # Normalise case for Windows
        executable = os.path.normcase(executable)
        # If the user didn't specify an executable, it may be necessary to
        # cater for executable paths with spaces (not uncommon on Windows)
        if enquote:
            executable = _enquote_executable(executable)
        # Issue #51: don't use fsencode, since we later try to
        # check that the shebang is decodable using utf-8.
        executable = executable.encode('utf-8')
        # in case of IronPython, play safe and enable frames support
        if (sys.platform == 'cli' and '-X:Frames' not in post_interp
            and '-X:FullFrames' not in post_interp):  # pragma: no cover
            post_interp += b' -X:Frames'
        shebang = b'#!' + executable + post_interp + b'\n'
        # Python parser starts to read a script using UTF-8 until
        # it gets a #coding:xxx cookie. The shebang has to be the
        # first line of a file, the #coding:xxx cookie cannot be
        # written before. So the shebang has to be decodable from
        # UTF-8.
        try:
            shebang.decode('utf-8')
        except UnicodeDecodeError:  # pragma: no cover
            raise ValueError(
                'The shebang (%r) is not decodable from utf-8' % shebang)
        # If the script is encoded to a custom encoding (use a
        # #coding:xxx cookie), the shebang has to be decodable from
        # the script encoding too.
        if encoding != 'utf-8':
            try:
                shebang.decode(encoding)
            except UnicodeDecodeError:  # pragma: no cover
                raise ValueError(
                    'The shebang (%r) is not decodable '
                    'from the script encoding (%r)' % (shebang, encoding))
        return shebang

def _get_script_text(self, entry):
        return self.script_template % dict(module=entry.prefix,
                                           func=entry.suffix)

manifest = _DEFAULT_MANIFEST

def get_manifest(self, exename):
        base = os.path.basename(exename)
        return self.manifest % base

def _write_script(self, names, shebang, script_bytes, filenames, ext):
        use_launcher = self.add_launchers and self._is_nt
        linesep = os.linesep.encode('utf-8')
        if not use_launcher:
            script_bytes = shebang + linesep + script_bytes
        else:  # pragma: no cover
            if ext == 'py':
                launcher = self._get_launcher('t')
            else:
                launcher = self._get_launcher('w')
            stream = BytesIO()
            with ZipFile(stream, 'w') as zf:
                zf.writestr('__main__.py', script_bytes)
            zip_data = stream.getvalue()
            script_bytes = launcher + shebang + linesep + zip_data
        for name in names:
            outname = os.path.join(self.target_dir, name)
            if use_launcher:  # pragma: no cover
                n, e = os.path.splitext(outname)
                if e.startswith('.py'):
                    outname = n
                outname = '%s.exe' % outname
                try:
                    self._fileop.write_binary_file(outname, script_bytes)
                except Exception:
                    # Failed writing an executable - it might be in use.
                    logger.warning('Failed to write executable - trying to '
                                   'use .deleteme logic')
                    dfname = '%s.deleteme' % outname
                    if os.path.exists(dfname):
                        os.remove(dfname)       # Not allowed to fail here
                    os.rename(outname, dfname)  # nor here
                    self._fileop.write_binary_file(outname, script_bytes)
                    logger.debug('Able to replace executable using '
                                 '.deleteme logic')
                    try:
                        os.remove(dfname)
                    except Exception:
                        pass    # still in use - ignore error
            else:
                if self._is_nt and not outname.endswith('.' + ext):  # pragma: no cover
                    outname = '%s.%s' % (outname, ext)
                if os.path.exists(outname) and not self.clobber:
                    logger.warning('Skipping existing file %s', outname)
                    continue
                self._fileop.write_binary_file(outname, script_bytes)
                if self.set_mode:
                    self._fileop.set_executable_mode([outname])
            filenames.append(outname)

def _make_script(self, entry, filenames, options=None):
        post_interp = b''
        if options:
            args = options.get('interpreter_args', [])
            if args:
                args = ' %s' % ' '.join(args)
                post_interp = args.encode('utf-8')
        shebang = self._get_shebang('utf-8', post_interp, options=options)
        script = self._get_script_text(entry).encode('utf-8')
        name = entry.name
        scriptnames = set()
        if '' in self.variants:
            scriptnames.add(name)
        if 'X' in self.variants:
            scriptnames.add('%s%s' % (name, sys.version[0]))
        if 'X.Y' in self.variants:
            scriptnames.add('%s-%s' % (name, sys.version[:3]))
        if options and options.get('gui', False):
            ext = 'pyw'
        else:
            ext = 'py'
        self._write_script(scriptnames, shebang, script, filenames, ext)

def _copy_script(self, script, filenames):
        adjust = False
        script = os.path.join(self.source_dir, convert_path(script))
        outname = os.path.join(self.target_dir, os.path.basename(script))
        if not self.force and not self._fileop.newer(script, outname):
            logger.debug('not copying %s (up-to-date)', script)
            return

# Always open the file, but ignore failures in dry-run mode --
        # that way, we'll get accurate feedback if we can read the
        # script.
        try:
            f = open(script, 'rb')
        except IOError:  # pragma: no cover
            if not self.dry_run:
                raise
            f = None
        else:
            first_line = f.readline()
            if not first_line:  # pragma: no cover
                logger.warning('%s: %s is an empty file (skipping)',
                               self.get_command_name(),  script)
                return

match = FIRST_LINE_RE.match(first_line.replace(b'\r\n', b'\n'))
            if match:
                adjust = True
                post_interp = match.group(1) or b''

if not adjust:
            if f:
                f.close()
            self._fileop.copy_file(script, outname)
            if self.set_mode:
                self._fileop.set_executable_mode([outname])
            filenames.append(outname)
        else:
            logger.info('copying and adjusting %s -> %s', script,
                        self.target_dir)
            if not self._fileop.dry_run:
                encoding, lines = detect_encoding(f.readline)
                f.seek(0)
                shebang = self._get_shebang(encoding, post_interp)
                if b'pythonw' in first_line:  # pragma: no cover
                    ext = 'pyw'
                else:
                    ext = 'py'
                n = os.path.basename(outname)
                self._write_script([n], shebang, f.read(), filenames, ext)
            if f:
                f.close()

@property
    def dry_run(self):
        return self._fileop.dry_run

@dry_run.setter
    def dry_run(self, value):
        self._fileop.dry_run = value

if os.name == 'nt' or (os.name == 'java' and os._name == 'nt'):  # pragma: no cover
        # Executable launcher support.
        # Launchers are from https://bitbucket.org/vinay.sajip/simple_launcher/

def _get_launcher(self, kind):
            if struct.calcsize('P') == 8:   # 64-bit
                bits = '64'
            else:
                bits = '32'
            name = '%s%s.exe' % (kind, bits)
            # Issue 31: don't hardcode an absolute package name, but
            # determine it relative to the current package
            distlib_package = __name__.rsplit('.', 1)[0]
            result = finder(distlib_package).find(name).bytes
            return result

# Public API follows

def make(self, specification, options=None):
        """
        Make a script.

:param specification: The specification, which is either a valid export
                              entry specification (to make a script from a
                              callable) or a filename (to make a script by
                              copying from a source location).
        :param options: A dictionary of options controlling script generation.
        :return: A list of all absolute pathnames written to.
        """
        filenames = []
        entry = get_export_entry(specification)
        if entry is None:
            self._copy_script(specification, filenames)
        else:
            self._make_script(entry, filenames, options=options)
        return filenames

def make_multiple(self, specifications, options=None):
        """
        Take a list of specifications and make scripts from them,
        :param specifications: A list of specifications.
        :return: A list of all absolute pathnames written to,
        """
        filenames = []
        for specification in specifications:
            filenames.extend(self.make(specification, options))
        return filenames

X7ROOT File Manager

Editing: scripts.py

Upload File

Create Folder