"""
Basic subprocess implementation for POSIX which only uses os functions. Only
implement features required by setup.py to build C extension modules when
subprocess is unavailable. setup.py is not used on Windows.
"""
import os

# distutils.spawn used by distutils.command.build_ext
# calls subprocess.Popen().wait()
class Popen:
    def __init__(self, cmd, env=None):
        self._cmd = cmd
        self._env = env
        self.returncode = None

def wait(self):
        pid = os.fork()
        if pid == 0:
            # Child process
            try:
                if self._env is not None:
                    os.execve(self._cmd[0], self._cmd, self._env)
                else:
                    os.execv(self._cmd[0], self._cmd)
            finally:
                os._exit(1)
        else:
            # Parent process
            _, status = os.waitpid(pid, 0)
            self.returncode = os.waitstatus_to_exitcode(status)

return self.returncode

def _check_cmd(cmd):
    # Use regex [a-zA-Z0-9./-]+: reject empty string, space, etc.
    safe_chars = []
    for first, last in (("a", "z"), ("A", "Z"), ("0", "9")):
        for ch in range(ord(first), ord(last) + 1):
            safe_chars.append(chr(ch))
    safe_chars.append("./-")
    safe_chars = ''.join(safe_chars)

if isinstance(cmd, (tuple, list)):
        check_strs = cmd
    elif isinstance(cmd, str):
        check_strs = [cmd]
    else:
        return False

for arg in check_strs:
        if not isinstance(arg, str):
            return False
        if not arg:
            # reject empty string
            return False
        for ch in arg:
            if ch not in safe_chars:
                return False

return True

# _aix_support used by distutil.util calls subprocess.check_output()
def check_output(cmd, **kwargs):
    if kwargs:
        raise NotImplementedError(repr(kwargs))

if not _check_cmd(cmd):
        raise ValueError(f"unsupported command: {cmd!r}")

tmp_filename = "check_output.tmp"
    if not isinstance(cmd, str):
        cmd = " ".join(cmd)
    cmd = f"{cmd} >{tmp_filename}"

try:
        # system() spawns a shell
        status = os.system(cmd)
        exitcode = os.waitstatus_to_exitcode(status)
        if exitcode:
            raise ValueError(f"Command {cmd!r} returned non-zero "
                             f"exit status {exitcode!r}")

try:
            with open(tmp_filename, "rb") as fp:
                stdout = fp.read()
        except FileNotFoundError:
            stdout = b''
    finally:
        try:
            os.unlink(tmp_filename)
        except OSError:
            pass

return stdout

Go Up

Current Directory: /usr/lib64/python3.9

LICENSE.txt Edit | Delete | Rename
__future__.py Edit | Delete | Rename
__phello__.foo.py Edit | Delete | Rename
__pycache__
_aix_support.py Edit | Delete | Rename
_bootlocale.py Edit | Delete | Rename
_bootsubprocess.py Edit | Delete | Rename
_collections_abc.py Edit | Delete | Rename
_compat_pickle.py Edit | Delete | Rename
_compression.py Edit | Delete | Rename
_markupbase.py Edit | Delete | Rename
_osx_support.py Edit | Delete | Rename
_py_abc.py Edit | Delete | Rename
_pydecimal.py Edit | Delete | Rename
_pyio.py Edit | Delete | Rename
_sitebuiltins.py Edit | Delete | Rename
_strptime.py Edit | Delete | Rename
_sysconfigdata__linux_x86_64-linux-gnu.py Edit | Delete | Rename
_threading_local.py Edit | Delete | Rename
_weakrefset.py Edit | Delete | Rename
abc.py Edit | Delete | Rename
aifc.py Edit | Delete | Rename
antigravity.py Edit | Delete | Rename
argparse.py Edit | Delete | Rename
ast.py Edit | Delete | Rename
asynchat.py Edit | Delete | Rename
asyncio
asyncore.py Edit | Delete | Rename
base64.py Edit | Delete | Rename
bdb.py Edit | Delete | Rename
binhex.py Edit | Delete | Rename
bisect.py Edit | Delete | Rename
bz2.py Edit | Delete | Rename
cProfile.py Edit | Delete | Rename
calendar.py Edit | Delete | Rename
cgi.py Edit | Delete | Rename
cgitb.py Edit | Delete | Rename
chunk.py Edit | Delete | Rename
cmd.py Edit | Delete | Rename
code.py Edit | Delete | Rename
codecs.py Edit | Delete | Rename
codeop.py Edit | Delete | Rename
collections
colorsys.py Edit | Delete | Rename
compileall.py Edit | Delete | Rename
concurrent
config-3.9-x86_64-linux-gnu
configparser.py Edit | Delete | Rename
contextlib.py Edit | Delete | Rename
contextvars.py Edit | Delete | Rename
copy.py Edit | Delete | Rename
copyreg.py Edit | Delete | Rename
crypt.py Edit | Delete | Rename
csv.py Edit | Delete | Rename
ctypes
curses
dataclasses.py Edit | Delete | Rename
datetime.py Edit | Delete | Rename
dbm
decimal.py Edit | Delete | Rename
difflib.py Edit | Delete | Rename
dis.py Edit | Delete | Rename
distutils
doctest.py Edit | Delete | Rename
email
encodings
ensurepip
enum.py Edit | Delete | Rename
filecmp.py Edit | Delete | Rename
fileinput.py Edit | Delete | Rename
fnmatch.py Edit | Delete | Rename
formatter.py Edit | Delete | Rename
fractions.py Edit | Delete | Rename
ftplib.py Edit | Delete | Rename
functools.py Edit | Delete | Rename
genericpath.py Edit | Delete | Rename
getopt.py Edit | Delete | Rename
getpass.py Edit | Delete | Rename
gettext.py Edit | Delete | Rename
glob.py Edit | Delete | Rename
graphlib.py Edit | Delete | Rename
gzip.py Edit | Delete | Rename
hashlib.py Edit | Delete | Rename
heapq.py Edit | Delete | Rename
hmac.py Edit | Delete | Rename
html
http
imaplib.py Edit | Delete | Rename
imghdr.py Edit | Delete | Rename
imp.py Edit | Delete | Rename
importlib
inspect.py Edit | Delete | Rename
io.py Edit | Delete | Rename
ipaddress.py Edit | Delete | Rename
json
keyword.py Edit | Delete | Rename
lib-dynload
lib2to3
linecache.py Edit | Delete | Rename
locale.py Edit | Delete | Rename
logging
lzma.py Edit | Delete | Rename
mailbox.py Edit | Delete | Rename
mailcap.py Edit | Delete | Rename
mimetypes.py Edit | Delete | Rename
modulefinder.py Edit | Delete | Rename
multiprocessing
netrc.py Edit | Delete | Rename
nntplib.py Edit | Delete | Rename
ntpath.py Edit | Delete | Rename
nturl2path.py Edit | Delete | Rename
numbers.py Edit | Delete | Rename
opcode.py Edit | Delete | Rename
operator.py Edit | Delete | Rename
optparse.py Edit | Delete | Rename
os.py Edit | Delete | Rename
pathlib.py Edit | Delete | Rename
pdb.py Edit | Delete | Rename
pickle.py Edit | Delete | Rename
pickletools.py Edit | Delete | Rename
pipes.py Edit | Delete | Rename
pkgutil.py Edit | Delete | Rename
platform.py Edit | Delete | Rename
plistlib.py Edit | Delete | Rename
poplib.py Edit | Delete | Rename
posixpath.py Edit | Delete | Rename
pprint.py Edit | Delete | Rename
profile.py Edit | Delete | Rename
pstats.py Edit | Delete | Rename
pty.py Edit | Delete | Rename
py_compile.py Edit | Delete | Rename
pyclbr.py Edit | Delete | Rename
pydoc.py Edit | Delete | Rename
pydoc_data
queue.py Edit | Delete | Rename
quopri.py Edit | Delete | Rename
random.py Edit | Delete | Rename
re.py Edit | Delete | Rename
reprlib.py Edit | Delete | Rename
rlcompleter.py Edit | Delete | Rename
runpy.py Edit | Delete | Rename
sched.py Edit | Delete | Rename
secrets.py Edit | Delete | Rename
selectors.py Edit | Delete | Rename
shelve.py Edit | Delete | Rename
shlex.py Edit | Delete | Rename
shutil.py Edit | Delete | Rename
signal.py Edit | Delete | Rename
site-packages
site.py Edit | Delete | Rename
smtpd.py Edit | Delete | Rename
smtplib.py Edit | Delete | Rename
sndhdr.py Edit | Delete | Rename
socket.py Edit | Delete | Rename
socketserver.py Edit | Delete | Rename
sqlite3
sre_compile.py Edit | Delete | Rename
sre_constants.py Edit | Delete | Rename
sre_parse.py Edit | Delete | Rename
ssl.py Edit | Delete | Rename
stat.py Edit | Delete | Rename
statistics.py Edit | Delete | Rename
string.py Edit | Delete | Rename
stringprep.py Edit | Delete | Rename
struct.py Edit | Delete | Rename
subprocess.py Edit | Delete | Rename
sunau.py Edit | Delete | Rename
symbol.py Edit | Delete | Rename
symtable.py Edit | Delete | Rename
sysconfig.py Edit | Delete | Rename
tabnanny.py Edit | Delete | Rename
tarfile.py Edit | Delete | Rename
telnetlib.py Edit | Delete | Rename
tempfile.py Edit | Delete | Rename
textwrap.py Edit | Delete | Rename
this.py Edit | Delete | Rename
threading.py Edit | Delete | Rename
timeit.py Edit | Delete | Rename
token.py Edit | Delete | Rename
tokenize.py Edit | Delete | Rename
trace.py Edit | Delete | Rename
traceback.py Edit | Delete | Rename
tracemalloc.py Edit | Delete | Rename
tty.py Edit | Delete | Rename
types.py Edit | Delete | Rename
typing.py Edit | Delete | Rename
unittest
urllib
uu.py Edit | Delete | Rename
uuid.py Edit | Delete | Rename
venv
warnings.py Edit | Delete | Rename
wave.py Edit | Delete | Rename
weakref.py Edit | Delete | Rename
webbrowser.py Edit | Delete | Rename
wsgiref
xdrlib.py Edit | Delete | Rename
xml
xmlrpc
zipapp.py Edit | Delete | Rename
zipfile.py Edit | Delete | Rename
zipimport.py Edit | Delete | Rename
zoneinfo

Current Directory: /usr/lib64/python3.9

Upload File

Create Folder

Create File