def load_module(self, fullname):
"""load_module(fullname) -> module.
Load the module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the imported
module, or raises ZipImportError if it could not be imported.
Deprecated since Python 3.10. Use exec_module() instead.
"""
msg = (
"zipimport.zipimporter.load_module() is deprecated and slated for "
"removal in Python 3.12; use exec_module() instead")
_warnings.warn(msg, DeprecationWarning)
code, ispackage, modpath = _get_module_code(self, fullname)
mod = sys.modules.get(fullname)
if mod is None or not isinstance(mod, _module_type):
mod = _module_type(fullname)
sys.modules[fullname] = mod
mod.__loader__ = self
try:
if ispackage:
# add __path__ to the module *before* the code gets
# executed
path = _get_module_path(self, fullname)
fullpath = _bootstrap_external._path_join(self.archive, path)
mod.__path__ = [fullpath]
if not hasattr(mod, '__builtins__'):
mod.__builtins__ = __builtins__
_bootstrap_external._fix_up_module(mod.__dict__, fullname, modpath)
exec(code, mod.__dict__)
except:
del sys.modules[fullname]
raise
try:
mod = sys.modules[fullname]
except KeyError:
raise ImportError(
f'Loaded module {fullname!r} not found in sys.modules')
_bootstrap._verbose_message('import {} # loaded from Zip {}', fullname,
modpath)
return mod
def __init__(self, path):
if not isinstance(path, str):
import os
path = os.fsdecode(path)
if not path:
raise ZipImportError('archive path is empty', path=path)
if alt_path_sep:
path = path.replace(alt_path_sep, path_sep)
prefix = []
while True:
try:
st = _bootstrap_external._path_stat(path)
except (OSError, ValueError):
# On Windows a ValueError is raised for too long paths.
# Back up one path element.
dirname, basename = _bootstrap_external._path_split(path)
if dirname == path:
raise ZipImportError('not a Zip file', path=path)
path = dirname
prefix.append(basename)
else:
# it exists
if (st.st_mode & 0o170000) != 0o100000: # stat.S_ISREG
# it's a not file
raise ZipImportError('not a Zip file', path=path)
break
try:
files = _zip_directory_cache[path]
except KeyError:
files = _read_directory(path)
_zip_directory_cache[path] = files
self._files = files
self.archive = path
# a prefix directory following the ZIP file path.
self.prefix = _bootstrap_external._path_join(*prefix[::-1])
if self.prefix:
self.prefix += path_sep
def __init__(self, path):
if not isinstance(path, str):
import os
path = os.fsdecode(path)
if not path:
raise ZipImportError('archive path is empty', path=path)
if alt_path_sep:
path = path.replace(alt_path_sep, path_sep)
prefix = []
while True:
try:
st = _bootstrap_external._path_stat(path)
except (OSError, ValueError):
# On Windows a ValueError is raised for too long paths.
# Back up one path element.
dirname, basename = _bootstrap_external._path_split(path)
if dirname == path:
raise ZipImportError('not a Zip file', path=path)
path = dirname
prefix.append(basename)
else:
# it exists
if (st.st_mode & 0o170000) != 0o100000: # stat.S_ISREG
# it's a not file
raise ZipImportError('not a Zip file', path=path)
break
try:
files = _zip_directory_cache[path]
except KeyError:
files = _read_directory(path)
_zip_directory_cache[path] = files
self._files = files
self.archive = path
# a prefix directory following the ZIP file path.
self.prefix = _bootstrap_external._path_join(*prefix[::-1])
if self.prefix:
self.prefix += path_sep
def load_module(self, fullname):
"""load_module(fullname) -> module.
Load the module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the imported
module, or raises ZipImportError if it wasn't found.
"""
code, ispackage, modpath = _get_module_code(self, fullname)
mod = sys.modules.get(fullname)
if mod is None or not isinstance(mod, _module_type):
mod = _module_type(fullname)
sys.modules[fullname] = mod
mod.__loader__ = self
try:
if ispackage:
# add __path__ to the module *before* the code gets
# executed
path = _get_module_path(self, fullname)
fullpath = _bootstrap_external._path_join(self.archive, path)
mod.__path__ = [fullpath]
if not hasattr(mod, '__builtins__'):
mod.__builtins__ = __builtins__
_bootstrap_external._fix_up_module(mod.__dict__, fullname, modpath)
exec(code, mod.__dict__)
except:
del sys.modules[fullname]
raise
try:
mod = sys.modules[fullname]
except KeyError:
raise ImportError(
f'Loaded module {fullname!r} not found in sys.modules')
_bootstrap._verbose_message('import {} # loaded from Zip {}', fullname,
modpath)
return mod
def get_source(self, fullname):
"""get_source(fullname) -> source string.
Return the source code for the specified module. Raise ZipImportError
if the module couldn't be found, return None if the archive does
contain the module, but has no source for it.
"""
mi = _get_module_info(self, fullname)
if mi is None:
raise ZipImportError(f"can't find module {fullname!r}", name=fullname)
path = _get_module_path(self, fullname)
if mi:
fullpath = _bootstrap_external._path_join(path, '__init__.py')
else:
fullpath = f'{path}.py'
try:
toc_entry = self._files[fullpath]
except KeyError:
# we have the module, but no source
return None
return _get_data(self.archive, toc_entry).decode()
def get_source(self, fullname):
"""get_source(fullname) -> source string.
Return the source code for the specified module. Raise ZipImportError
if the module couldn't be found, return None if the archive does
contain the module, but has no source for it.
"""
mi = _get_module_info(self, fullname)
if mi is None:
raise ZipImportError(f"can't find module {fullname!r}", name=fullname)
path = _get_module_path(self, fullname)
if mi:
fullpath = _bootstrap_external._path_join(path, '__init__.py')
else:
fullpath = f'{path}.py'
try:
toc_entry = self._files[fullpath]
except KeyError:
# we have the module, but no source
return None
return _get_data(self.archive, toc_entry).decode()
def load_module(self, fullname):
"""load_module(fullname) -> module.
Load the module specified by 'fullname'. 'fullname' must be the
fully qualified (dotted) module name. It returns the imported
module, or raises ZipImportError if it wasn't found.
"""
code, ispackage, modpath = _get_module_code(self, fullname)
mod = sys.modules.get(fullname)
if mod is None or not isinstance(mod, _module_type):
mod = _module_type(fullname)
sys.modules[fullname] = mod
mod.__loader__ = self
try:
if ispackage:
# add __path__ to the module *before* the code gets
# executed
path = _get_module_path(self, fullname)
fullpath = _bootstrap_external._path_join(self.archive, path)
mod.__path__ = [fullpath]
if not hasattr(mod, '__builtins__'):
mod.__builtins__ = __builtins__
_bootstrap_external._fix_up_module(mod.__dict__, fullname, modpath)
exec(code, mod.__dict__)
except:
del sys.modules[fullname]
raise
try:
mod = sys.modules[fullname]
except KeyError:
raise ImportError(f'Loaded module {fullname!r} not found in sys.modules')
_bootstrap._verbose_message('import {} # loaded from Zip {}', fullname, modpath)
return mod
def _read_directory(archive):
try:
fp = _io.open_code(archive)
except OSError:
raise ZipImportError(f"can't open Zip file: {archive!r}", path=archive)
with fp:
try:
fp.seek(-END_CENTRAL_DIR_SIZE, 2)
header_position = fp.tell()
buffer = fp.read(END_CENTRAL_DIR_SIZE)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
if buffer[:4] != STRING_END_ARCHIVE:
# Bad: End of Central Dir signature
# Check if there's a comment.
try:
fp.seek(0, 2)
file_size = fp.tell()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
max_comment_start = max(
file_size - MAX_COMMENT_LEN - END_CENTRAL_DIR_SIZE, 0)
try:
fp.seek(max_comment_start)
data = fp.read()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
pos = data.rfind(STRING_END_ARCHIVE)
if pos < 0:
raise ZipImportError(f'not a Zip file: {archive!r}',
path=archive)
buffer = data[pos:pos + END_CENTRAL_DIR_SIZE]
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"corrupt Zip file: {archive!r}",
path=archive)
header_position = file_size - len(data) + pos
header_size = _unpack_uint32(buffer[12:16])
header_offset = _unpack_uint32(buffer[16:20])
if header_position < header_size:
raise ZipImportError(f'bad central directory size: {archive!r}',
path=archive)
if header_position < header_offset:
raise ZipImportError(f'bad central directory offset: {archive!r}',
path=archive)
header_position -= header_size
arc_offset = header_position - header_offset
if arc_offset < 0:
raise ZipImportError(
f'bad central directory size or offset: {archive!r}',
path=archive)
files = {}
# Start of Central Directory
count = 0
try:
fp.seek(header_position)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
while True:
buffer = fp.read(46)
if len(buffer) < 4:
raise EOFError('EOF read where not expected')
# Start of file header
if buffer[:4] != b'PK\x01\x02':
break # Bad: Central Dir File Header
if len(buffer) != 46:
raise EOFError('EOF read where not expected')
flags = _unpack_uint16(buffer[8:10])
compress = _unpack_uint16(buffer[10:12])
time = _unpack_uint16(buffer[12:14])
date = _unpack_uint16(buffer[14:16])
crc = _unpack_uint32(buffer[16:20])
data_size = _unpack_uint32(buffer[20:24])
file_size = _unpack_uint32(buffer[24:28])
name_size = _unpack_uint16(buffer[28:30])
extra_size = _unpack_uint16(buffer[30:32])
comment_size = _unpack_uint16(buffer[32:34])
file_offset = _unpack_uint32(buffer[42:46])
header_size = name_size + extra_size + comment_size
if file_offset > header_offset:
raise ZipImportError(f'bad local header offset: {archive!r}',
path=archive)
file_offset += arc_offset
try:
name = fp.read(name_size)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
if len(name) != name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
# On Windows, calling fseek to skip over the fields we don't use is
# slower than reading the data because fseek flushes stdio's
# internal buffers. See issue #8745.
try:
if len(fp.read(header_size -
name_size)) != header_size - name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
if flags & 0x800:
# UTF-8 file names extension
name = name.decode()
else:
# Historical ZIP filename encoding
try:
name = name.decode('ascii')
except UnicodeDecodeError:
name = name.decode('latin1').translate(cp437_table)
name = name.replace('/', path_sep)
path = _bootstrap_external._path_join(archive, name)
t = (path, compress, data_size, file_size, file_offset, time, date,
crc)
files[name] = t
count += 1
_bootstrap._verbose_message('zipimport: found {} names in {!r}', count,
archive)
return files
def _read_directory(archive):
try:
fp = _io.open(archive, 'rb')
except OSError:
raise ZipImportError(f"can't open Zip file: {archive!r}", path=archive)
with fp:
try:
fp.seek(-END_CENTRAL_DIR_SIZE, 2)
header_position = fp.tell()
buffer = fp.read(END_CENTRAL_DIR_SIZE)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if buffer[:4] != STRING_END_ARCHIVE:
# Bad: End of Central Dir signature
# Check if there's a comment.
try:
fp.seek(0, 2)
file_size = fp.tell()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
max_comment_start = max(file_size - MAX_COMMENT_LEN -
END_CENTRAL_DIR_SIZE, 0)
try:
fp.seek(max_comment_start)
data = fp.read()
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}",
path=archive)
pos = data.rfind(STRING_END_ARCHIVE)
if pos < 0:
raise ZipImportError(f'not a Zip file: {archive!r}',
path=archive)
buffer = data[pos:pos+END_CENTRAL_DIR_SIZE]
if len(buffer) != END_CENTRAL_DIR_SIZE:
raise ZipImportError(f"corrupt Zip file: {archive!r}",
path=archive)
header_position = file_size - len(data) + pos
header_size = _unpack_uint32(buffer[12:16])
header_offset = _unpack_uint32(buffer[16:20])
if header_position < header_size:
raise ZipImportError(f'bad central directory size: {archive!r}', path=archive)
if header_position < header_offset:
raise ZipImportError(f'bad central directory offset: {archive!r}', path=archive)
header_position -= header_size
arc_offset = header_position - header_offset
if arc_offset < 0:
raise ZipImportError(f'bad central directory size or offset: {archive!r}', path=archive)
files = {}
# Start of Central Directory
count = 0
try:
fp.seek(header_position)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
while True:
buffer = fp.read(46)
if len(buffer) < 4:
raise EOFError('EOF read where not expected')
# Start of file header
if buffer[:4] != b'PK\x01\x02':
break # Bad: Central Dir File Header
if len(buffer) != 46:
raise EOFError('EOF read where not expected')
flags = _unpack_uint16(buffer[8:10])
compress = _unpack_uint16(buffer[10:12])
time = _unpack_uint16(buffer[12:14])
date = _unpack_uint16(buffer[14:16])
crc = _unpack_uint32(buffer[16:20])
data_size = _unpack_uint32(buffer[20:24])
file_size = _unpack_uint32(buffer[24:28])
name_size = _unpack_uint16(buffer[28:30])
extra_size = _unpack_uint16(buffer[30:32])
comment_size = _unpack_uint16(buffer[32:34])
file_offset = _unpack_uint32(buffer[42:46])
header_size = name_size + extra_size + comment_size
if file_offset > header_offset:
raise ZipImportError(f'bad local header offset: {archive!r}', path=archive)
file_offset += arc_offset
try:
name = fp.read(name_size)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if len(name) != name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
# On Windows, calling fseek to skip over the fields we don't use is
# slower than reading the data because fseek flushes stdio's
# internal buffers. See issue #8745.
try:
if len(fp.read(header_size - name_size)) != header_size - name_size:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
except OSError:
raise ZipImportError(f"can't read Zip file: {archive!r}", path=archive)
if flags & 0x800:
# UTF-8 file names extension
name = name.decode()
else:
# Historical ZIP filename encoding
try:
name = name.decode('ascii')
except UnicodeDecodeError:
name = name.decode('latin1').translate(cp437_table)
name = name.replace('/', path_sep)
path = _bootstrap_external._path_join(archive, name)
t = (path, compress, data_size, file_size, file_offset, time, date, crc)
files[name] = t
count += 1
_bootstrap._verbose_message('zipimport: found {} names in {!r}', count, archive)
return files
