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Name	Size	Permission	Date
__phello__	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
__pycache__	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
asyncio	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
collections	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
concurrent	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
ctypes	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
curses	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
dbm	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
email	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
encodings	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
html	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
http	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
importlib	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
json	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
lib-dynload	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
logging	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
multiprocessing	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
pydoc_data	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
re	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
sqlite3	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
test	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
tomllib	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
unittest	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
urllib	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
venv	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
wsgiref	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
xml	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
xmlrpc	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
zipfile	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
zoneinfo	[ DIR ]	drwxr-xr-x	2024-12-17 16:05
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LICENSE.txt	13.61 KB	-rw-r--r--	2024-11-06 18:32
__future__.py	5.1 KB	-rw-r--r--	2024-11-06 18:32
__hello__.py	227 B	-rw-r--r--	2024-11-06 18:32
_aix_support.py	3.93 KB	-rw-r--r--	2024-11-06 18:32
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_compat_pickle.py	8.56 KB	-rw-r--r--	2024-11-06 18:32
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_distutils_system_mod.py	5.58 KB	-rw-r--r--	2024-11-06 18:32
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_osx_support.py	21.51 KB	-rw-r--r--	2024-11-06 18:32
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_pydatetime.py	89.94 KB	-rw-r--r--	2024-11-06 18:32
_pydecimal.py	223.85 KB	-rw-r--r--	2024-11-06 18:32
_pyio.py	91.4 KB	-rw-r--r--	2024-11-06 18:32
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_sitebuiltins.py	3.05 KB	-rw-r--r--	2024-11-06 18:32
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_sysconfigdata__linux_x86_64-linux-gnu.py	48.34 KB	-rw-r--r--	2024-11-06 18:32
_sysconfigdata__x86_64-linux-gnu.py	48.34 KB	-rw-r--r--	2024-11-06 18:32
_threading_local.py	7.05 KB	-rw-r--r--	2024-11-06 18:32
_weakrefset.py	5.75 KB	-rw-r--r--	2024-11-06 18:32
abc.py	6.38 KB	-rw-r--r--	2024-11-06 18:32
aifc.py	33.41 KB	-rw-r--r--	2024-11-06 18:32
antigravity.py	500 B	-rw-r--r--	2024-11-06 18:32
argparse.py	99.37 KB	-rw-r--r--	2024-11-06 18:32
ast.py	62.75 KB	-rw-r--r--	2024-11-06 18:32
base64.py	20.12 KB	-rwxr-xr-x	2024-11-06 18:32
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bisect.py	3.34 KB	-rw-r--r--	2024-11-06 18:32
bz2.py	11.57 KB	-rw-r--r--	2024-11-06 18:32
cProfile.py	6.4 KB	-rwxr-xr-x	2024-11-06 18:32
calendar.py	24.82 KB	-rw-r--r--	2024-11-06 18:32
cgi.py	33.61 KB	-rwxr-xr-x	2024-11-06 18:32
cgitb.py	12.13 KB	-rw-r--r--	2024-11-06 18:32
chunk.py	5.37 KB	-rw-r--r--	2024-11-06 18:32
cmd.py	14.52 KB	-rw-r--r--	2024-11-06 18:32
code.py	10.44 KB	-rw-r--r--	2024-11-06 18:32
codecs.py	36.01 KB	-rw-r--r--	2024-11-06 18:32
codeop.py	5.77 KB	-rw-r--r--	2024-11-06 18:32
colorsys.py	3.97 KB	-rw-r--r--	2024-11-06 18:32
compileall.py	20.12 KB	-rw-r--r--	2024-11-06 18:32
configparser.py	52.53 KB	-rw-r--r--	2024-11-06 18:32
contextlib.py	26.99 KB	-rw-r--r--	2024-11-06 18:32
contextvars.py	129 B	-rw-r--r--	2024-11-06 18:32
copy.py	8.21 KB	-rw-r--r--	2024-11-06 18:32
copyreg.py	7.44 KB	-rw-r--r--	2024-11-06 18:32
crypt.py	3.82 KB	-rw-r--r--	2024-11-06 18:32
csv.py	16 KB	-rw-r--r--	2024-11-06 18:32
dataclasses.py	60.31 KB	-rw-r--r--	2024-11-06 18:32
datetime.py	268 B	-rw-r--r--	2024-11-06 18:32
decimal.py	320 B	-rw-r--r--	2024-11-06 18:32
difflib.py	81.36 KB	-rw-r--r--	2024-11-06 18:32
dis.py	29.5 KB	-rw-r--r--	2024-11-06 18:32
doctest.py	103.98 KB	-rw-r--r--	2024-11-06 18:32
enum.py	79.72 KB	-rw-r--r--	2024-11-06 18:32
filecmp.py	9.95 KB	-rw-r--r--	2024-11-06 18:32
fileinput.py	15.35 KB	-rw-r--r--	2024-11-06 18:32
fnmatch.py	5.86 KB	-rw-r--r--	2024-11-06 18:32
fractions.py	37.17 KB	-rw-r--r--	2024-11-06 18:32
ftplib.py	33.92 KB	-rw-r--r--	2024-11-06 18:32
functools.py	37.23 KB	-rw-r--r--	2024-11-06 18:32
genericpath.py	5.18 KB	-rw-r--r--	2024-11-06 18:32
getopt.py	7.31 KB	-rw-r--r--	2024-11-06 18:32
getpass.py	5.85 KB	-rw-r--r--	2024-11-06 18:32
gettext.py	21.24 KB	-rw-r--r--	2024-11-06 18:32
glob.py	8.53 KB	-rw-r--r--	2024-11-06 18:32
graphlib.py	9.43 KB	-rw-r--r--	2024-11-06 18:32
gzip.py	24.28 KB	-rw-r--r--	2024-11-06 18:32
hashlib.py	9.13 KB	-rw-r--r--	2024-11-06 18:32
heapq.py	22.48 KB	-rw-r--r--	2024-11-06 18:32
hmac.py	7.54 KB	-rw-r--r--	2024-11-06 18:32
imaplib.py	52.43 KB	-rw-r--r--	2024-11-06 18:32
imghdr.py	4.29 KB	-rw-r--r--	2024-11-06 18:32
inspect.py	122.48 KB	-rw-r--r--	2024-11-06 18:32
io.py	3.5 KB	-rw-r--r--	2024-11-06 18:32
ipaddress.py	76.46 KB	-rw-r--r--	2024-11-06 18:32
keyword.py	1.05 KB	-rw-r--r--	2024-11-06 18:32
linecache.py	5.52 KB	-rw-r--r--	2024-11-06 18:32
locale.py	76.72 KB	-rw-r--r--	2024-11-06 18:32
lzma.py	12.97 KB	-rw-r--r--	2024-11-06 18:32
mailbox.py	77.06 KB	-rw-r--r--	2024-11-06 18:32
mailcap.py	9.11 KB	-rw-r--r--	2024-11-06 18:32
mimetypes.py	22.35 KB	-rw-r--r--	2024-11-06 18:32
modulefinder.py	23.14 KB	-rw-r--r--	2024-11-06 18:32
netrc.py	6.76 KB	-rw-r--r--	2024-11-06 18:32
nntplib.py	40.12 KB	-rw-r--r--	2024-11-06 18:32
ntpath.py	30.75 KB	-rw-r--r--	2024-11-06 18:32
nturl2path.py	2.82 KB	-rw-r--r--	2024-11-06 18:32
numbers.py	11.2 KB	-rw-r--r--	2024-11-06 18:32
opcode.py	12.87 KB	-rw-r--r--	2024-11-06 18:32
operator.py	10.71 KB	-rw-r--r--	2024-11-06 18:32
optparse.py	58.95 KB	-rw-r--r--	2024-11-06 18:32
os.py	38.85 KB	-rw-r--r--	2024-11-06 18:32
pathlib.py	49.95 KB	-rw-r--r--	2024-11-06 18:32
pdb.py	67.83 KB	-rwxr-xr-x	2024-11-06 18:32
pickle.py	63.38 KB	-rw-r--r--	2024-11-06 18:32
pickletools.py	91.66 KB	-rw-r--r--	2024-11-06 18:32
pipes.py	8.77 KB	-rw-r--r--	2024-11-06 18:32
pkgutil.py	17.85 KB	-rw-r--r--	2024-11-06 18:32
platform.py	42.32 KB	-rwxr-xr-x	2024-11-06 18:32
plistlib.py	27.68 KB	-rw-r--r--	2024-11-06 18:32
poplib.py	13.83 KB	-rw-r--r--	2024-11-06 18:32
posixpath.py	17.15 KB	-rw-r--r--	2024-11-06 18:32
pprint.py	23.59 KB	-rw-r--r--	2024-11-06 18:32
profile.py	22.55 KB	-rwxr-xr-x	2024-11-06 18:32
pstats.py	28.6 KB	-rw-r--r--	2024-11-06 18:32
pty.py	5.99 KB	-rw-r--r--	2024-11-06 18:32
py_compile.py	7.69 KB	-rw-r--r--	2024-11-06 18:32
pyclbr.py	11.13 KB	-rw-r--r--	2024-11-06 18:32
pydoc.py	110.44 KB	-rwxr-xr-x	2024-11-06 18:32
queue.py	11.23 KB	-rw-r--r--	2024-11-06 18:32
quopri.py	7.01 KB	-rwxr-xr-x	2024-11-06 18:32
random.py	33.87 KB	-rw-r--r--	2024-11-06 18:32
reprlib.py	6.42 KB	-rw-r--r--	2024-11-06 18:32
rlcompleter.py	7.64 KB	-rw-r--r--	2024-11-06 18:32
runpy.py	12.6 KB	-rw-r--r--	2024-11-06 18:32
sched.py	6.2 KB	-rw-r--r--	2024-11-06 18:32
secrets.py	1.94 KB	-rw-r--r--	2024-11-06 18:32
selectors.py	19.21 KB	-rw-r--r--	2024-11-06 18:32
shelve.py	8.36 KB	-rw-r--r--	2024-11-06 18:32
shlex.py	13.04 KB	-rw-r--r--	2024-11-06 18:32
shutil.py	56.76 KB	-rw-r--r--	2024-11-06 18:32
signal.py	2.44 KB	-rw-r--r--	2024-11-06 18:32
site.py	23.34 KB	-rw-r--r--	2024-11-06 18:32
smtplib.py	42.51 KB	-rwxr-xr-x	2024-11-06 18:32
sndhdr.py	7.27 KB	-rw-r--r--	2024-11-06 18:32
socket.py	36.53 KB	-rw-r--r--	2024-11-06 18:32
socketserver.py	27.2 KB	-rw-r--r--	2024-11-06 18:32
sre_compile.py	231 B	-rw-r--r--	2024-11-06 18:32
sre_constants.py	232 B	-rw-r--r--	2024-11-06 18:32
sre_parse.py	229 B	-rw-r--r--	2024-11-06 18:32
ssl.py	49.63 KB	-rw-r--r--	2024-11-06 18:32
stat.py	5.36 KB	-rw-r--r--	2024-11-06 18:32
statistics.py	49.05 KB	-rw-r--r--	2024-11-06 18:32
string.py	11.51 KB	-rw-r--r--	2024-11-06 18:32
stringprep.py	12.61 KB	-rw-r--r--	2024-11-06 18:32
struct.py	257 B	-rw-r--r--	2024-11-06 18:32
subprocess.py	86.65 KB	-rw-r--r--	2024-11-06 18:32
sunau.py	18.04 KB	-rw-r--r--	2024-11-06 18:32
symtable.py	10.5 KB	-rw-r--r--	2024-11-06 18:32
sysconfig.py	32 KB	-rw-r--r--	2024-11-06 18:32
tabnanny.py	11.26 KB	-rwxr-xr-x	2024-11-06 18:32
tarfile.py	105.93 KB	-rwxr-xr-x	2024-11-06 18:32
telnetlib.py	22.75 KB	-rw-r--r--	2024-11-06 18:32
tempfile.py	36.46 KB	-rw-r--r--	2024-11-06 18:32
textwrap.py	19.26 KB	-rw-r--r--	2024-11-06 18:32
this.py	1003 B	-rw-r--r--	2024-11-06 18:32
threading.py	58.71 KB	-rw-r--r--	2024-11-06 18:32
timeit.py	13.15 KB	-rwxr-xr-x	2024-11-06 18:32
token.py	2.42 KB	-rw-r--r--	2024-11-06 18:32
tokenize.py	20.72 KB	-rw-r--r--	2024-11-06 18:32
trace.py	28.5 KB	-rwxr-xr-x	2024-11-06 18:32
traceback.py	45.24 KB	-rw-r--r--	2024-11-06 18:32
tracemalloc.py	17.62 KB	-rw-r--r--	2024-11-06 18:32
tty.py	1.99 KB	-rw-r--r--	2024-11-06 18:32
turtle.py	142.93 KB	-rw-r--r--	2024-11-06 18:32
types.py	10.74 KB	-rw-r--r--	2024-11-06 18:32
typing.py	114.68 KB	-rw-r--r--	2024-11-06 18:32
uu.py	7.19 KB	-rwxr-xr-x	2024-11-06 18:32
uuid.py	28.96 KB	-rw-r--r--	2024-11-06 18:32
warnings.py	21.25 KB	-rw-r--r--	2024-11-06 18:32
wave.py	22.24 KB	-rw-r--r--	2024-11-06 18:32
weakref.py	21.01 KB	-rw-r--r--	2024-11-06 18:32
webbrowser.py	23.07 KB	-rwxr-xr-x	2024-11-06 18:32
xdrlib.py	5.8 KB	-rw-r--r--	2024-11-06 18:32
zipapp.py	7.37 KB	-rw-r--r--	2024-11-06 18:32
zipimport.py	27.47 KB	-rw-r--r--	2024-11-06 18:32

Rename

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

import _symtable
from _symtable import (USE, DEF_GLOBAL, DEF_NONLOCAL, 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):
    """ Return the toplevel *SymbolTable* for the source code.

*filename* is the name of the file with the code
    and *compile_type* is the *compile()* mode argument.
    """
    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:

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 == "top":
            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):
        """Return the type of the symbol table.

The values returned are 'class', 'module', 'function',
        'annotation', 'TypeVar bound', 'type alias', and 'type parameter'.
        """
        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"
        if self._table.type == _symtable.TYPE_ANNOTATION:
            return "annotation"
        if self._table.type == _symtable.TYPE_TYPE_VAR_BOUND:
            return "TypeVar bound"
        if self._table.type == _symtable.TYPE_TYPE_ALIAS:
            return "type alias"
        if self._table.type == _symtable.TYPE_TYPE_PARAM:
            return "type parameter"
        assert False, f"unexpected type: {self._table.type}"

def get_id(self):
        """Return an identifier for the table.
        """
        return self._table.id

def get_name(self):
        """Return the table's name.

This corresponds to the name of the class, function
        or 'top' if the table is for a class, function or
        global respectively.
        """
        return self._table.name

def get_lineno(self):
        """Return the number of the first line in the
        block for the table.
        """
        return self._table.lineno

def is_optimized(self):
        """Return *True* if the locals in the table
        are optimizable.
        """
        return bool(self._table.type == _symtable.TYPE_FUNCTION)

def is_nested(self):
        """Return *True* if the block is a nested class
        or function."""
        return bool(self._table.nested)

def has_children(self):
        """Return *True* if the block has nested namespaces.
        """
        return bool(self._table.children)

def get_identifiers(self):
        """Return a view object containing the names of symbols in the table.
        """
        return self._table.symbols.keys()

def lookup(self, name):
        """Lookup a *name* in the table.

Returns a *Symbol* instance.
        """
        sym = self._symbols.get(name)
        if sym is None:
            flags = self._table.symbols[name]
            namespaces = self.__check_children(name)
            module_scope = (self._table.name == "top")
            sym = self._symbols[name] = Symbol(name, flags, namespaces,
                                               module_scope=module_scope)
        return sym

def get_symbols(self):
        """Return a list of *Symbol* instances for
        names in the table.
        """
        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 a list of the nested symbol tables.
        """
        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
    __nonlocals = 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):
        """Return a tuple of parameters to the function.
        """
        if self.__params is None:
            self.__params = self.__idents_matching(lambda x:x & DEF_PARAM)
        return self.__params

def get_locals(self):
        """Return a tuple of locals in the function.
        """
        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):
        """Return a tuple of globals in the function.
        """
        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_nonlocals(self):
        """Return a tuple of nonlocals in the function.
        """
        if self.__nonlocals is None:
            self.__nonlocals = self.__idents_matching(lambda x:x & DEF_NONLOCAL)
        return self.__nonlocals

def get_frees(self):
        """Return a tuple of free variables in the function.
        """
        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):
        """Return a tuple of methods declared in the class.
        """
        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:

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

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

def get_name(self):
        """Return a name of a symbol.
        """
        return self.__name

def is_referenced(self):
        """Return *True* if the symbol is used in
        its block.
        """
        return bool(self.__flags & _symtable.USE)

def is_parameter(self):
        """Return *True* if the symbol is a parameter.
        """
        return bool(self.__flags & DEF_PARAM)

def is_global(self):
        """Return *True* if the symbol is global.
        """
        return bool(self.__scope in (GLOBAL_IMPLICIT, GLOBAL_EXPLICIT)
                    or (self.__module_scope and self.__flags & DEF_BOUND))

def is_nonlocal(self):
        """Return *True* if the symbol is nonlocal."""
        return bool(self.__flags & DEF_NONLOCAL)

def is_declared_global(self):
        """Return *True* if the symbol is declared global
        with a global statement."""
        return bool(self.__scope == GLOBAL_EXPLICIT)

def is_local(self):
        """Return *True* if the symbol is local.
        """
        return bool(self.__scope in (LOCAL, CELL)
                    or (self.__module_scope and self.__flags & DEF_BOUND))

def is_annotated(self):
        """Return *True* if the symbol is annotated.
        """
        return bool(self.__flags & DEF_ANNOT)

def is_free(self):
        """Return *True* if a referenced symbol is
        not assigned to.
        """
        return bool(self.__scope == FREE)

def is_imported(self):
        """Return *True* if the symbol is created from
        an import statement.
        """
        return bool(self.__flags & DEF_IMPORT)

def is_assigned(self):
        """Return *True* if a symbol is assigned to."""
        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):
        """Return the single namespace bound to this name.

Raises ValueError if the name is bound to multiple namespaces
        or no namespace.
        """
        if len(self.__namespaces) == 0:
            raise ValueError("name is not bound to any namespaces")
        elif len(self.__namespaces) > 1:
            raise ValueError("name is bound to multiple namespaces")
        else:
            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())