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Name	Size	Permission	Date
__pycache__	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
asyncio	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
collections	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
concurrent	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
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curses	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
dbm	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
email	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
encodings	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
ensurepip	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
html	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
http	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
importlib	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
json	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
lib-dynload	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
lib2to3	[ DIR ]	drwxr-xr-x	2025-04-01 08:45
logging	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
multiprocessing	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
pydoc_data	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
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site-packages	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
sqlite3	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
tomllib	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
unittest	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
urllib	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
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zipfile	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
zoneinfo	[ DIR ]	drwxr-xr-x	2025-04-01 08:39
LICENSE.txt	13.61 KB	-rw-r--r--	2025-02-04 14:38
__future__.py	5.1 KB	-rw-r--r--	2025-03-03 16:34
__hello__.py	227 B	-rw-r--r--	2025-03-03 16:34
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abc.py	6.38 KB	-rw-r--r--	2025-03-03 16:34
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bisect.py	3.34 KB	-rw-r--r--	2025-03-03 16:34
bz2.py	11.57 KB	-rw-r--r--	2025-03-03 16:34
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calendar.py	25.26 KB	-rw-r--r--	2025-03-03 16:34
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chunk.py	5.37 KB	-rw-r--r--	2025-03-03 16:34
cmd.py	14.52 KB	-rw-r--r--	2025-03-03 16:34
code.py	10.71 KB	-rw-r--r--	2025-03-03 16:34
codecs.py	36.01 KB	-rw-r--r--	2025-03-03 16:34
codeop.py	5.77 KB	-rw-r--r--	2025-03-03 16:34
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configparser.py	52.53 KB	-rw-r--r--	2025-03-03 16:34
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crypt.py	3.82 KB	-rw-r--r--	2025-03-03 16:34
csv.py	16 KB	-rw-r--r--	2025-03-03 16:34
dataclasses.py	60.63 KB	-rw-r--r--	2025-03-03 16:34
datetime.py	268 B	-rw-r--r--	2025-03-03 16:34
decimal.py	2.74 KB	-rw-r--r--	2025-03-03 16:34
difflib.py	81.36 KB	-rw-r--r--	2025-03-03 16:34
dis.py	29.52 KB	-rw-r--r--	2025-03-03 16:34
doctest.py	104.25 KB	-rw-r--r--	2025-03-03 16:34
enum.py	79.53 KB	-rw-r--r--	2025-03-03 16:34
filecmp.py	10.14 KB	-rw-r--r--	2025-03-03 16:34
fileinput.py	15.35 KB	-rw-r--r--	2025-03-03 16:34
fnmatch.py	5.86 KB	-rw-r--r--	2025-03-03 16:34
fractions.py	37.25 KB	-rw-r--r--	2025-03-03 16:34
ftplib.py	33.92 KB	-rw-r--r--	2025-03-03 16:34
functools.py	37.05 KB	-rw-r--r--	2025-03-03 16:34
genericpath.py	5.18 KB	-rw-r--r--	2025-03-03 16:34
getopt.py	7.31 KB	-rw-r--r--	2025-03-03 16:34
getpass.py	5.85 KB	-rw-r--r--	2025-03-03 16:34
gettext.py	20.82 KB	-rw-r--r--	2025-03-03 16:34
glob.py	8.53 KB	-rw-r--r--	2025-03-03 16:34
graphlib.py	9.43 KB	-rw-r--r--	2025-03-03 16:34
gzip.py	24.28 KB	-rw-r--r--	2025-03-03 16:34
hashlib.py	9.13 KB	-rw-r--r--	2025-03-03 16:34
heapq.py	22.48 KB	-rw-r--r--	2025-03-03 16:34
hmac.py	7.54 KB	-rw-r--r--	2025-03-03 16:34
imaplib.py	52.77 KB	-rw-r--r--	2025-03-03 16:34
imghdr.py	4.29 KB	-rw-r--r--	2025-03-03 16:34
inspect.py	123.94 KB	-rw-r--r--	2025-03-03 16:34
io.py	3.5 KB	-rw-r--r--	2025-03-03 16:34
ipaddress.py	77.27 KB	-rw-r--r--	2025-03-03 16:34
keyword.py	1.05 KB	-rw-r--r--	2025-03-03 16:34
linecache.py	5.66 KB	-rw-r--r--	2025-03-03 16:34
locale.py	76.76 KB	-rw-r--r--	2025-03-03 16:34
lzma.py	12.97 KB	-rw-r--r--	2025-03-03 16:34
mailbox.py	77.06 KB	-rw-r--r--	2025-03-03 16:34
mailcap.py	9.11 KB	-rw-r--r--	2025-03-03 16:34
mimetypes.py	22.42 KB	-rw-r--r--	2025-03-03 16:34
modulefinder.py	23.14 KB	-rw-r--r--	2025-03-03 16:34
netrc.py	6.76 KB	-rw-r--r--	2025-03-03 16:34
nntplib.py	40.12 KB	-rw-r--r--	2025-03-03 16:34
ntpath.py	31.11 KB	-rw-r--r--	2025-03-03 16:34
nturl2path.py	2.32 KB	-rw-r--r--	2025-03-03 16:34
numbers.py	11.2 KB	-rw-r--r--	2025-03-03 16:34
opcode.py	12.87 KB	-rw-r--r--	2025-03-03 16:34
operator.py	10.71 KB	-rw-r--r--	2025-03-03 16:34
optparse.py	58.95 KB	-rw-r--r--	2025-03-03 16:34
os.py	39.82 KB	-rw-r--r--	2025-03-03 16:34
pathlib.py	49.86 KB	-rw-r--r--	2025-03-03 16:34
pdb.py	68.66 KB	-rwxr-xr-x	2025-03-03 16:34
pickle.py	65.34 KB	-rw-r--r--	2025-03-03 16:34
pickletools.py	91.85 KB	-rw-r--r--	2025-03-03 16:34
pipes.py	8.77 KB	-rw-r--r--	2025-03-03 16:34
pkgutil.py	17.85 KB	-rw-r--r--	2025-03-03 16:34
platform.py	42.38 KB	-rwxr-xr-x	2025-03-03 16:34
plistlib.py	27.68 KB	-rw-r--r--	2025-03-03 16:34
poplib.py	13.87 KB	-rw-r--r--	2025-03-03 16:34
posixpath.py	16.89 KB	-rw-r--r--	2025-03-03 16:34
pprint.py	23.59 KB	-rw-r--r--	2025-03-03 16:34
profile.py	22.56 KB	-rwxr-xr-x	2025-03-03 16:34
pstats.py	28.6 KB	-rw-r--r--	2025-03-03 16:34
pty.py	5.99 KB	-rw-r--r--	2025-03-03 16:34
py_compile.py	7.65 KB	-rw-r--r--	2025-03-03 16:34
pyclbr.py	11.13 KB	-rw-r--r--	2025-03-03 16:34
pydoc.py	110.83 KB	-rwxr-xr-x	2025-03-03 16:34
queue.py	11.23 KB	-rw-r--r--	2025-03-03 16:34
quopri.py	7.03 KB	-rwxr-xr-x	2025-03-03 16:34
random.py	33.87 KB	-rw-r--r--	2025-03-03 16:34
reprlib.py	6.98 KB	-rw-r--r--	2025-03-03 16:34
rlcompleter.py	7.64 KB	-rw-r--r--	2025-03-03 16:34
runpy.py	12.58 KB	-rw-r--r--	2025-03-03 16:34
sched.py	6.2 KB	-rw-r--r--	2025-03-03 16:34
secrets.py	1.94 KB	-rw-r--r--	2025-03-03 16:34
selectors.py	19.21 KB	-rw-r--r--	2025-03-03 16:34
shelve.py	8.36 KB	-rw-r--r--	2025-03-03 16:34
shlex.py	13.04 KB	-rw-r--r--	2025-03-03 16:34
shutil.py	55.43 KB	-rw-r--r--	2025-03-03 16:34
signal.py	2.44 KB	-rw-r--r--	2025-03-03 16:34
site.py	22.65 KB	-rw-r--r--	2025-03-03 16:34
smtplib.py	42.52 KB	-rwxr-xr-x	2025-03-03 16:34
sndhdr.py	7.27 KB	-rw-r--r--	2025-03-03 16:34
socket.py	36.93 KB	-rw-r--r--	2025-03-03 16:34
socketserver.py	27.41 KB	-rw-r--r--	2025-03-03 16:34
sre_compile.py	231 B	-rw-r--r--	2025-03-03 16:34
sre_constants.py	232 B	-rw-r--r--	2025-03-03 16:34
sre_parse.py	229 B	-rw-r--r--	2025-03-03 16:34
ssl.py	49.71 KB	-rw-r--r--	2025-03-03 16:34
stat.py	5.36 KB	-rw-r--r--	2025-03-03 16:34
statistics.py	49.05 KB	-rw-r--r--	2025-03-03 16:34
string.py	11.51 KB	-rw-r--r--	2025-03-03 16:34
stringprep.py	12.61 KB	-rw-r--r--	2025-03-03 16:34
struct.py	257 B	-rw-r--r--	2025-03-03 16:34
subprocess.py	87.12 KB	-rw-r--r--	2025-03-03 16:34
sunau.py	18.04 KB	-rw-r--r--	2025-03-03 16:34
symtable.py	12.18 KB	-rw-r--r--	2025-03-03 16:34
sysconfig.py	30.93 KB	-rw-r--r--	2025-03-03 16:34
tabnanny.py	11.27 KB	-rwxr-xr-x	2025-03-03 16:34
tarfile.py	105.96 KB	-rwxr-xr-x	2025-03-03 16:34
telnetlib.py	22.79 KB	-rw-r--r--	2025-03-03 16:34
tempfile.py	31.48 KB	-rw-r--r--	2025-03-03 16:34
textwrap.py	19.26 KB	-rw-r--r--	2025-03-03 16:34
this.py	1003 B	-rw-r--r--	2025-03-03 16:34
threading.py	58.79 KB	-rw-r--r--	2025-03-03 16:34
timeit.py	13.16 KB	-rwxr-xr-x	2025-03-03 16:34
token.py	2.45 KB	-rw-r--r--	2025-03-03 16:34
tokenize.py	20.6 KB	-rw-r--r--	2025-03-03 16:34
trace.py	28.68 KB	-rwxr-xr-x	2025-03-03 16:34
traceback.py	45.24 KB	-rw-r--r--	2025-03-03 16:34
tracemalloc.py	17.62 KB	-rw-r--r--	2025-03-03 16:34
tty.py	1.99 KB	-rw-r--r--	2025-03-03 16:34
types.py	10.74 KB	-rw-r--r--	2025-03-03 16:34
typing.py	116.05 KB	-rw-r--r--	2025-03-03 16:34
uu.py	7.17 KB	-rw-r--r--	2025-03-03 16:42
uuid.py	28.96 KB	-rw-r--r--	2025-03-03 16:34
warnings.py	21.39 KB	-rw-r--r--	2025-03-03 16:34
wave.py	22.24 KB	-rw-r--r--	2025-03-03 16:34
weakref.py	21.01 KB	-rw-r--r--	2025-03-03 16:34
webbrowser.py	23.19 KB	-rwxr-xr-x	2025-03-03 16:34
xdrlib.py	5.8 KB	-rw-r--r--	2025-03-03 16:34
zipapp.py	7.37 KB	-rw-r--r--	2025-03-03 16:34
zipimport.py	27.19 KB	-rw-r--r--	2025-03-03 16:34

Rename

"""Internal classes used by the gzip, lzma and bz2 modules"""

import io
import sys

BUFFER_SIZE = io.DEFAULT_BUFFER_SIZE  # Compressed data read chunk size

class BaseStream(io.BufferedIOBase):
    """Mode-checking helper functions."""

def _check_not_closed(self):
        if self.closed:
            raise ValueError("I/O operation on closed file")

def _check_can_read(self):
        if not self.readable():
            raise io.UnsupportedOperation("File not open for reading")

def _check_can_write(self):
        if not self.writable():
            raise io.UnsupportedOperation("File not open for writing")

def _check_can_seek(self):
        if not self.readable():
            raise io.UnsupportedOperation("Seeking is only supported "
                                          "on files open for reading")
        if not self.seekable():
            raise io.UnsupportedOperation("The underlying file object "
                                          "does not support seeking")

class DecompressReader(io.RawIOBase):
    """Adapts the decompressor API to a RawIOBase reader API"""

def readable(self):
        return True

def __init__(self, fp, decomp_factory, trailing_error=(), **decomp_args):
        self._fp = fp
        self._eof = False
        self._pos = 0  # Current offset in decompressed stream

# Set to size of decompressed stream once it is known, for SEEK_END
        self._size = -1

# Save the decompressor factory and arguments.
        # If the file contains multiple compressed streams, each
        # stream will need a separate decompressor object. A new decompressor
        # object is also needed when implementing a backwards seek().
        self._decomp_factory = decomp_factory
        self._decomp_args = decomp_args
        self._decompressor = self._decomp_factory(**self._decomp_args)

# Exception class to catch from decompressor signifying invalid
        # trailing data to ignore
        self._trailing_error = trailing_error

def close(self):
        self._decompressor = None
        return super().close()

def seekable(self):
        return self._fp.seekable()

def readinto(self, b):
        with memoryview(b) as view, view.cast("B") as byte_view:
            data = self.read(len(byte_view))
            byte_view[:len(data)] = data
        return len(data)

def read(self, size=-1):
        if size < 0:
            return self.readall()

if not size or self._eof:
            return b""
        data = None  # Default if EOF is encountered
        # Depending on the input data, our call to the decompressor may not
        # return any data. In this case, try again after reading another block.
        while True:
            if self._decompressor.eof:
                rawblock = (self._decompressor.unused_data or
                            self._fp.read(BUFFER_SIZE))
                if not rawblock:
                    break
                # Continue to next stream.
                self._decompressor = self._decomp_factory(
                    **self._decomp_args)
                try:
                    data = self._decompressor.decompress(rawblock, size)
                except self._trailing_error:
                    # Trailing data isn't a valid compressed stream; ignore it.
                    break
            else:
                if self._decompressor.needs_input:
                    rawblock = self._fp.read(BUFFER_SIZE)
                    if not rawblock:
                        raise EOFError("Compressed file ended before the "
                                       "end-of-stream marker was reached")
                else:
                    rawblock = b""
                data = self._decompressor.decompress(rawblock, size)
            if data:
                break
        if not data:
            self._eof = True
            self._size = self._pos
            return b""
        self._pos += len(data)
        return data

def readall(self):
        chunks = []
        # sys.maxsize means the max length of output buffer is unlimited,
        # so that the whole input buffer can be decompressed within one
        # .decompress() call.
        while data := self.read(sys.maxsize):
            chunks.append(data)

return b"".join(chunks)

# Rewind the file to the beginning of the data stream.
    def _rewind(self):
        self._fp.seek(0)
        self._eof = False
        self._pos = 0
        self._decompressor = self._decomp_factory(**self._decomp_args)

def seek(self, offset, whence=io.SEEK_SET):
        # Recalculate offset as an absolute file position.
        if whence == io.SEEK_SET:
            pass
        elif whence == io.SEEK_CUR:
            offset = self._pos + offset
        elif whence == io.SEEK_END:
            # Seeking relative to EOF - we need to know the file's size.
            if self._size < 0:
                while self.read(io.DEFAULT_BUFFER_SIZE):
                    pass
            offset = self._size + offset
        else:
            raise ValueError("Invalid value for whence: {}".format(whence))

# Make it so that offset is the number of bytes to skip forward.
        if offset < self._pos:
            self._rewind()
        else:
            offset -= self._pos

# Read and discard data until we reach the desired position.
        while offset > 0:
            data = self.read(min(io.DEFAULT_BUFFER_SIZE, offset))
            if not data:
                break
            offset -= len(data)

return self._pos

def tell(self):
        """Return the current file position."""
        return self._pos