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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
asyncio	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
collections	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
concurrent	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
config-3.7m	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
ctypes	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
curses	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
dbm	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
distutils	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
email	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
encodings	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
ensurepip	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
html	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
http	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
idlelib	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
importlib	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
json	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
lib-dynload	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
lib2to3	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
logging	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
multiprocessing	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
pydoc_data	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
site-packages	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
sqlite3	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
test	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
unittest	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
urllib	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
venv	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
wsgiref	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
xml	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
xmlrpc	[ DIR ]	drwxr-xr-x	2026-02-18 15:08
__future__.py	4.98 KB	-rw-r--r--	2024-04-17 23:06
__phello__.foo.py	64 B	-rw-r--r--	2024-04-17 23:06
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abc.py	5.45 KB	-rw-r--r--	2024-04-17 23:06
aifc.py	32.04 KB	-rw-r--r--	2024-04-17 23:06
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argparse.py	93.14 KB	-rw-r--r--	2024-04-17 23:06
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base64.py	19.92 KB	-rwxr-xr-x	2024-04-17 23:06
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calendar.py	24.24 KB	-rw-r--r--	2024-04-17 23:06
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cmd.py	14.51 KB	-rw-r--r--	2024-04-17 23:06
code.py	10.37 KB	-rw-r--r--	2024-04-17 23:06
codecs.py	35.76 KB	-rw-r--r--	2024-04-17 23:06
codeop.py	6.13 KB	-rw-r--r--	2024-04-17 23:06
colorsys.py	3.97 KB	-rw-r--r--	2024-04-17 23:06
compileall.py	13.46 KB	-rw-r--r--	2024-04-17 23:06
configparser.py	53.01 KB	-rw-r--r--	2024-04-17 23:06
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crypt.py	3.27 KB	-rw-r--r--	2024-04-17 23:06
csv.py	15.8 KB	-rw-r--r--	2024-04-17 23:06
dataclasses.py	48.36 KB	-rw-r--r--	2024-04-17 23:06
datetime.py	84.52 KB	-rw-r--r--	2024-04-17 23:06
decimal.py	320 B	-rw-r--r--	2024-04-17 23:06
difflib.py	82.42 KB	-rw-r--r--	2024-04-17 23:06
dis.py	19.42 KB	-rw-r--r--	2024-04-17 23:06
doctest.py	102.11 KB	-rw-r--r--	2024-04-17 23:06
dummy_threading.py	2.75 KB	-rw-r--r--	2024-04-17 23:06
enum.py	34.22 KB	-rw-r--r--	2024-04-17 23:06
filecmp.py	9.6 KB	-rw-r--r--	2024-04-17 23:06
fileinput.py	14.28 KB	-rw-r--r--	2024-04-17 23:06
fnmatch.py	3.96 KB	-rw-r--r--	2024-04-17 23:06
formatter.py	14.79 KB	-rw-r--r--	2024-04-17 23:06
fractions.py	23.2 KB	-rw-r--r--	2024-04-17 23:06
ftplib.py	34.78 KB	-rw-r--r--	2024-04-17 23:06
functools.py	32.16 KB	-rw-r--r--	2024-04-17 23:06
genericpath.py	4.8 KB	-rw-r--r--	2024-04-17 23:06
getopt.py	7.31 KB	-rw-r--r--	2024-04-17 23:06
getpass.py	5.85 KB	-rw-r--r--	2024-04-17 23:06
gettext.py	21.45 KB	-rw-r--r--	2024-04-17 23:06
glob.py	5.51 KB	-rw-r--r--	2024-04-17 23:06
gzip.py	20.15 KB	-rw-r--r--	2024-04-17 23:06
hashlib.py	9.31 KB	-rw-r--r--	2024-04-17 23:06
heapq.py	22.48 KB	-rw-r--r--	2024-04-17 23:06
hmac.py	6.36 KB	-rw-r--r--	2024-04-17 23:06
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imghdr.py	3.71 KB	-rw-r--r--	2024-04-17 23:06
imp.py	10.29 KB	-rw-r--r--	2024-04-17 23:06
inspect.py	114.88 KB	-rw-r--r--	2024-04-17 23:06
io.py	3.43 KB	-rw-r--r--	2024-04-17 23:06
ipaddress.py	71.85 KB	-rw-r--r--	2024-04-17 23:06
keyword.py	2.2 KB	-rwxr-xr-x	2024-04-17 23:06
linecache.py	5.21 KB	-rw-r--r--	2024-04-17 23:06
locale.py	76.36 KB	-rw-r--r--	2024-04-17 23:06
lzma.py	12.68 KB	-rw-r--r--	2024-04-17 23:06
macpath.py	5.98 KB	-rw-r--r--	2024-04-17 23:06
mailbox.py	76.81 KB	-rw-r--r--	2024-04-17 23:06
mailcap.py	8.85 KB	-rw-r--r--	2024-04-17 23:06
mimetypes.py	20.99 KB	-rw-r--r--	2024-04-17 23:06
modulefinder.py	22.5 KB	-rw-r--r--	2024-04-17 23:06
netrc.py	5.44 KB	-rw-r--r--	2024-04-17 23:06
nntplib.py	42.08 KB	-rw-r--r--	2024-04-17 23:06
ntpath.py	21.82 KB	-rw-r--r--	2024-04-17 23:06
nturl2path.py	2.52 KB	-rw-r--r--	2024-04-17 23:06
numbers.py	10 KB	-rw-r--r--	2024-04-17 23:06
opcode.py	5.69 KB	-rw-r--r--	2024-04-17 23:06
operator.py	10.61 KB	-rw-r--r--	2024-04-17 23:06
optparse.py	58.96 KB	-rw-r--r--	2024-04-17 23:06
os.py	37.01 KB	-rw-r--r--	2024-04-17 23:06
pathlib.py	49.15 KB	-rw-r--r--	2024-04-17 23:06
pdb.py	61.04 KB	-rwxr-xr-x	2024-04-17 23:06
pickle.py	56.63 KB	-rw-r--r--	2024-04-17 23:06
pickletools.py	89.08 KB	-rw-r--r--	2024-04-17 23:06
pipes.py	8.71 KB	-rw-r--r--	2024-04-17 23:06
pkgutil.py	20.96 KB	-rw-r--r--	2024-04-17 23:06
platform.py	45.89 KB	-rwxr-xr-x	2024-04-17 23:06
plistlib.py	29.99 KB	-rw-r--r--	2024-04-17 23:06
poplib.py	14.61 KB	-rw-r--r--	2024-04-17 23:06
posixpath.py	15.4 KB	-rw-r--r--	2024-04-17 23:06
pprint.py	20.39 KB	-rw-r--r--	2024-04-17 23:06
profile.py	21.97 KB	-rwxr-xr-x	2024-04-17 23:06
pstats.py	26.67 KB	-rw-r--r--	2024-04-17 23:06
pty.py	4.65 KB	-rw-r--r--	2024-04-17 23:06
py_compile.py	7.81 KB	-rw-r--r--	2024-04-17 23:06
pyclbr.py	14.78 KB	-rw-r--r--	2024-04-17 23:06
pydoc.py	103.39 KB	-rw-r--r--	2024-04-17 23:06
queue.py	11.09 KB	-rw-r--r--	2024-04-17 23:06
quopri.py	7.09 KB	-rwxr-xr-x	2024-04-17 23:06
random.py	26.91 KB	-rw-r--r--	2024-04-17 23:06
re.py	14.95 KB	-rw-r--r--	2024-04-17 23:06
reprlib.py	5.14 KB	-rw-r--r--	2024-04-17 23:06
rlcompleter.py	6.93 KB	-rw-r--r--	2024-04-17 23:06
runpy.py	11.68 KB	-rw-r--r--	2024-04-17 23:06
sched.py	6.29 KB	-rw-r--r--	2024-04-17 23:06
secrets.py	1.99 KB	-rw-r--r--	2024-04-17 23:06
selectors.py	18.13 KB	-rw-r--r--	2024-04-17 23:06
shelve.py	8.33 KB	-rw-r--r--	2024-04-17 23:06
shlex.py	12.79 KB	-rw-r--r--	2024-04-17 23:06
shutil.py	40.97 KB	-rw-r--r--	2024-04-17 23:06
signal.py	2.07 KB	-rw-r--r--	2024-04-17 23:06
site.py	21.07 KB	-rw-r--r--	2024-04-17 23:06
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smtplib.py	43.4 KB	-rwxr-xr-x	2024-04-17 23:06
sndhdr.py	6.92 KB	-rw-r--r--	2024-04-17 23:06
socket.py	26.83 KB	-rw-r--r--	2024-04-17 23:06
socketserver.py	26.29 KB	-rw-r--r--	2024-04-17 23:06
sre_compile.py	26.24 KB	-rw-r--r--	2024-04-17 23:06
sre_constants.py	7.01 KB	-rw-r--r--	2024-04-17 23:06
sre_parse.py	38.24 KB	-rw-r--r--	2024-04-17 23:06
ssl.py	44.43 KB	-rw-r--r--	2024-04-17 23:06
stat.py	5.26 KB	-rw-r--r--	2024-04-17 23:06
statistics.py	20.17 KB	-rw-r--r--	2024-04-17 23:06
string.py	11.29 KB	-rw-r--r--	2024-04-17 23:06
stringprep.py	12.61 KB	-rw-r--r--	2024-04-17 23:06
struct.py	257 B	-rw-r--r--	2024-04-17 23:06
subprocess.py	70.95 KB	-rw-r--r--	2024-04-17 23:06
sunau.py	17.94 KB	-rw-r--r--	2024-04-17 23:06
symbol.py	2.09 KB	-rwxr-xr-x	2024-04-17 23:06
symtable.py	7.11 KB	-rw-r--r--	2024-04-17 23:06
sysconfig.py	23.87 KB	-rw-r--r--	2024-04-17 23:06
tabnanny.py	11.15 KB	-rwxr-xr-x	2024-04-17 23:06
tarfile.py	90.5 KB	-rwxr-xr-x	2024-04-17 23:06
telnetlib.py	22.59 KB	-rw-r--r--	2024-04-17 23:06
tempfile.py	26.1 KB	-rw-r--r--	2024-04-17 23:06
textwrap.py	18.95 KB	-rw-r--r--	2024-04-17 23:06
this.py	1003 B	-rw-r--r--	2024-04-17 23:06
threading.py	48.13 KB	-rw-r--r--	2024-04-17 23:06
timeit.py	13.18 KB	-rwxr-xr-x	2024-04-17 23:06
token.py	3.67 KB	-rw-r--r--	2024-04-17 23:06
tokenize.py	26.4 KB	-rw-r--r--	2024-04-17 23:06
trace.py	28.23 KB	-rwxr-xr-x	2024-04-17 23:06
traceback.py	22.89 KB	-rw-r--r--	2024-04-17 23:06
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uuid.py	28.83 KB	-rw-r--r--	2024-04-17 23:06
warnings.py	19.61 KB	-rw-r--r--	2024-04-17 23:06
wave.py	17.8 KB	-rw-r--r--	2024-04-17 23:06
weakref.py	21 KB	-rw-r--r--	2024-04-17 23:06
webbrowser.py	23.16 KB	-rwxr-xr-x	2024-04-17 23:06
xdrlib.py	5.77 KB	-rw-r--r--	2024-04-17 23:06
zipapp.py	7.36 KB	-rw-r--r--	2024-04-17 23:06
zipfile.py	79.19 KB	-rw-r--r--	2024-04-17 23:06

Rename

"""Interface to the compiler's internal symbol tables"""

import _symtable
from _symtable import (USE, DEF_GLOBAL, DEF_LOCAL, DEF_PARAM,
     DEF_IMPORT, DEF_BOUND, DEF_ANNOT, SCOPE_OFF, SCOPE_MASK, FREE,
     LOCAL, GLOBAL_IMPLICIT, GLOBAL_EXPLICIT, CELL)

import weakref

__all__ = ["symtable", "SymbolTable", "Class", "Function", "Symbol"]

def symtable(code, filename, compile_type):
    top = _symtable.symtable(code, filename, compile_type)
    return _newSymbolTable(top, filename)

class SymbolTableFactory:
    def __init__(self):
        self.__memo = weakref.WeakValueDictionary()

def new(self, table, filename):
        if table.type == _symtable.TYPE_FUNCTION:
            return Function(table, filename)
        if table.type == _symtable.TYPE_CLASS:
            return Class(table, filename)
        return SymbolTable(table, filename)

def __call__(self, table, filename):
        key = table, filename
        obj = self.__memo.get(key, None)
        if obj is None:
            obj = self.__memo[key] = self.new(table, filename)
        return obj

_newSymbolTable = SymbolTableFactory()

class SymbolTable(object):

def __init__(self, raw_table, filename):
        self._table = raw_table
        self._filename = filename
        self._symbols = {}

def __repr__(self):
        if self.__class__ == SymbolTable:
            kind = ""
        else:
            kind = "%s " % self.__class__.__name__

if self._table.name == "global":
            return "<{0}SymbolTable for module {1}>".format(kind, self._filename)
        else:
            return "<{0}SymbolTable for {1} in {2}>".format(kind,
                                                            self._table.name,
                                                            self._filename)

def get_type(self):
        if self._table.type == _symtable.TYPE_MODULE:
            return "module"
        if self._table.type == _symtable.TYPE_FUNCTION:
            return "function"
        if self._table.type == _symtable.TYPE_CLASS:
            return "class"
        assert self._table.type in (1, 2, 3), \
               "unexpected type: {0}".format(self._table.type)

def get_id(self):
        return self._table.id

def get_name(self):
        return self._table.name

def get_lineno(self):
        return self._table.lineno

def is_optimized(self):
        return bool(self._table.type == _symtable.TYPE_FUNCTION)

def is_nested(self):
        return bool(self._table.nested)

def has_children(self):
        return bool(self._table.children)

def has_exec(self):
        """Return true if the scope uses exec.  Deprecated method."""
        return False

def get_identifiers(self):
        return self._table.symbols.keys()

def lookup(self, name):
        sym = self._symbols.get(name)
        if sym is None:
            flags = self._table.symbols[name]
            namespaces = self.__check_children(name)
            sym = self._symbols[name] = Symbol(name, flags, namespaces)
        return sym

def get_symbols(self):
        return [self.lookup(ident) for ident in self.get_identifiers()]

def __check_children(self, name):
        return [_newSymbolTable(st, self._filename)
                for st in self._table.children
                if st.name == name]

def get_children(self):
        return [_newSymbolTable(st, self._filename)
                for st in self._table.children]

class Function(SymbolTable):

# Default values for instance variables
    __params = None
    __locals = None
    __frees = None
    __globals = None

def __idents_matching(self, test_func):
        return tuple(ident for ident in self.get_identifiers()
                     if test_func(self._table.symbols[ident]))

def get_parameters(self):
        if self.__params is None:
            self.__params = self.__idents_matching(lambda x:x & DEF_PARAM)
        return self.__params

def get_locals(self):
        if self.__locals is None:
            locs = (LOCAL, CELL)
            test = lambda x: ((x >> SCOPE_OFF) & SCOPE_MASK) in locs
            self.__locals = self.__idents_matching(test)
        return self.__locals

def get_globals(self):
        if self.__globals is None:
            glob = (GLOBAL_IMPLICIT, GLOBAL_EXPLICIT)
            test = lambda x:((x >> SCOPE_OFF) & SCOPE_MASK) in glob
            self.__globals = self.__idents_matching(test)
        return self.__globals

def get_frees(self):
        if self.__frees is None:
            is_free = lambda x:((x >> SCOPE_OFF) & SCOPE_MASK) == FREE
            self.__frees = self.__idents_matching(is_free)
        return self.__frees

class Class(SymbolTable):

__methods = None

def get_methods(self):
        if self.__methods is None:
            d = {}
            for st in self._table.children:
                d[st.name] = 1
            self.__methods = tuple(d)
        return self.__methods

class Symbol(object):

def __init__(self, name, flags, namespaces=None):
        self.__name = name
        self.__flags = flags
        self.__scope = (flags >> SCOPE_OFF) & SCOPE_MASK # like PyST_GetScope()
        self.__namespaces = namespaces or ()

def __repr__(self):
        return "<symbol {0!r}>".format(self.__name)

def get_name(self):
        return self.__name

def is_referenced(self):
        return bool(self.__flags & _symtable.USE)

def is_parameter(self):
        return bool(self.__flags & DEF_PARAM)

def is_global(self):
        return bool(self.__scope in (GLOBAL_IMPLICIT, GLOBAL_EXPLICIT))

def is_declared_global(self):
        return bool(self.__scope == GLOBAL_EXPLICIT)

def is_local(self):
        return bool(self.__scope in (LOCAL, CELL))

def is_annotated(self):
        return bool(self.__flags & DEF_ANNOT)

def is_free(self):
        return bool(self.__scope == FREE)

def is_imported(self):
        return bool(self.__flags & DEF_IMPORT)

def is_assigned(self):
        return bool(self.__flags & DEF_LOCAL)

def is_namespace(self):
        """Returns true if name binding introduces new namespace.

If the name is used as the target of a function or class
        statement, this will be true.

Note that a single name can be bound to multiple objects.  If
        is_namespace() is true, the name may also be bound to other
        objects, like an int or list, that does not introduce a new
        namespace.
        """
        return bool(self.__namespaces)

def get_namespaces(self):
        """Return a list of namespaces bound to this name"""
        return self.__namespaces

def get_namespace(self):
        """Returns the single namespace bound to this name.

Raises ValueError if the name is bound to multiple namespaces.
        """
        if len(self.__namespaces) != 1:
            raise ValueError("name is bound to multiple namespaces")
        return self.__namespaces[0]

if __name__ == "__main__":
    import os, sys
    with open(sys.argv[0]) as f:
        src = f.read()
    mod = symtable(src, os.path.split(sys.argv[0])[1], "exec")
    for ident in mod.get_identifiers():
        info = mod.lookup(ident)
        print(info, info.is_local(), info.is_namespace())