def get_archive_handler(archive_name):
if os.path.isfile(archive_name):
if tarfile.is_tarfile(archive_name):
return extract_tarfile
elif zipfile.is_zipfile(archive_name):
return extract_zipfile
else:
# look at the file name
for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
if archive_name.endswith(ext):
return extract_tarfile
for ext in ('.zip', '.jar'):
if archive_name.endswith(ext):
return extract_zipfile
python类is_zipfile()的实例源码
def get_archive_handler(archive_name):
if os.path.isfile(archive_name):
if tarfile.is_tarfile(archive_name):
return extract_tarfile
elif zipfile.is_zipfile(archive_name):
return extract_zipfile
else:
# look at the file name
for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
if archive_name.endswith(ext):
return extract_tarfile
for ext in ('.zip', '.jar'):
if archive_name.endswith(ext):
return extract_zipfile
def get_archive_handler(archive_name):
if os.path.isfile(archive_name):
if tarfile.is_tarfile(archive_name):
return extract_tarfile
elif zipfile.is_zipfile(archive_name):
return extract_zipfile
else:
# look at the file name
for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
if archive_name.endswith(ext):
return extract_tarfile
for ext in ('.zip', '.jar'):
if archive_name.endswith(ext):
return extract_zipfile
def get_archive_handler(archive_name):
if os.path.isfile(archive_name):
if tarfile.is_tarfile(archive_name):
return extract_tarfile
elif zipfile.is_zipfile(archive_name):
return extract_zipfile
else:
# look at the file name
for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
if archive_name.endswith(ext):
return extract_tarfile
for ext in ('.zip', '.jar'):
if archive_name.endswith(ext):
return extract_zipfile
def download_video(pathname, scene, image_md5_dict, calc_md5):
scene_out_dir = pathname + 'videos'
download_file = scene + '.mp4'
print('\ndownloading video ' + download_file.split('/')[-1])
idd = id_download_dict[download_file]
download_file_local = scene_out_dir + sep + scene + '.mp4'
download_file_from_google_drive(idd, download_file_local)
if(calc_md5):
h_md5 = generate_file_md5(download_file_local)
print('\nmd5 downloaded: ' + h_md5)
print('md5 original: ' + video_md5_dict[scene])
md5_check = h_md5 == video_md5_dict[scene]
if(not md5_check):
print('\nWarning: MD5 does not match, delete file and restart' +
' download\n')
else:
if(unpack):
extr_dir = scene_out_dir
zip_file = scene_out_dir + sep + scene + '.zip'
if(zipfile.is_zipfile(zip_file)):
if not os.path.exists(extr_dir):
os.makedirs(extr_dir)
zip = zipfile.ZipFile(zip_file,'r')
zip.extractall(extr_dir)
def download_image_sets(pathname, scene, image_md5_dict, calc_md5):
scene_out_dir = pathname + 'image_sets'
download_file = scene + '.zip'
download_file_local = scene_out_dir + sep + scene + '.zip'
print('\ndownloading image set ' + download_file.split('/')[-1])
idd = id_download_dict[download_file]
download_file_from_google_drive(idd, download_file_local)
if(calc_md5):
h_md5 = generate_file_md5(download_file_local)
print('\nmd5 downloaded: ' + h_md5)
print('md5 original: ' + image_md5_dict[scene])
md5_check = h_md5 == image_md5_dict[scene]
if(md5_check):
if(unpack):
extr_dir = scene_out_dir
zip_file = scene_out_dir + sep + scene + '.zip'
if(zipfile.is_zipfile(zip_file)):
if not os.path.exists(extr_dir):
os.makedirs(extr_dir)
zip = zipfile.ZipFile(zip_file,'r')
zip.extractall(extr_dir)
else:
print('\nWarning: MD5 does not match, delete file and restart' +
' download\n')
def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % filename)
zip = zipfile.ZipFile(filename)
try:
for info in zip.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name:
continue
target = os.path.join(extract_dir, *name.split('/'))
if not target:
continue
_ensure_directory(target)
if not name.endswith('/'):
# file
data = zip.read(info.filename)
f = open(target, 'wb')
try:
f.write(data)
finally:
f.close()
del data
finally:
zip.close()
def unpack_file(filename, location, content_type, link):
filename = os.path.realpath(filename)
if (content_type == 'application/zip' or
filename.lower().endswith(ZIP_EXTENSIONS) or
zipfile.is_zipfile(filename)):
unzip_file(
filename,
location,
flatten=not filename.endswith('.whl')
)
elif (content_type == 'application/x-gzip' or
tarfile.is_tarfile(filename) or
filename.lower().endswith(
TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
untar_file(filename, location)
elif (content_type and content_type.startswith('text/html') and
is_svn_page(file_contents(filename))):
# We don't really care about this
from pip.vcs.subversion import Subversion
Subversion('svn+' + link.url).unpack(location)
else:
# FIXME: handle?
# FIXME: magic signatures?
logger.critical(
'Cannot unpack file %s (downloaded from %s, content-type: %s); '
'cannot detect archive format',
filename, location, content_type,
)
raise InstallationError(
'Cannot determine archive format of %s' % location
)
def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
"""Unpack zip `filename` to `extract_dir`
Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
by ``zipfile.is_zipfile()``). See ``unpack_archive()`` for an explanation
of the `progress_filter` argument.
"""
if not zipfile.is_zipfile(filename):
raise UnrecognizedFormat("%s is not a zip file" % (filename,))
with ContextualZipFile(filename) as z:
for info in z.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name.split('/'):
continue
target = os.path.join(extract_dir, *name.split('/'))
target = progress_filter(name, target)
if not target:
continue
if name.endswith('/'):
# directory
ensure_directory(target)
else:
# file
ensure_directory(target)
data = z.read(info.filename)
with open(target, 'wb') as f:
f.write(data)
unix_attributes = info.external_attr >> 16
if unix_attributes:
os.chmod(target, unix_attributes)
def get_archive_handler(archive_name):
if os.path.isfile(archive_name):
if tarfile.is_tarfile(archive_name):
return extract_tarfile
elif zipfile.is_zipfile(archive_name):
return extract_zipfile
else:
# look at the file name
for ext in ('.tar', '.tar.gz', '.tgz', 'tar.bz2', '.tbz2', '.tbz'):
if archive_name.endswith(ext):
return extract_tarfile
for ext in ('.zip', '.jar'):
if archive_name.endswith(ext):
return extract_zipfile
def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % filename)
zip = zipfile.ZipFile(filename)
try:
for info in zip.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name:
continue
target = os.path.join(extract_dir, *name.split('/'))
if not target:
continue
_ensure_directory(target)
if not name.endswith('/'):
# file
data = zip.read(info.filename)
f = open(target, 'wb')
try:
f.write(data)
finally:
f.close()
del data
finally:
zip.close()
def unpack_file(filename, location, content_type, link):
filename = os.path.realpath(filename)
if (content_type == 'application/zip' or
filename.lower().endswith(ZIP_EXTENSIONS) or
zipfile.is_zipfile(filename)):
unzip_file(
filename,
location,
flatten=not filename.endswith('.whl')
)
elif (content_type == 'application/x-gzip' or
tarfile.is_tarfile(filename) or
filename.lower().endswith(
TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
untar_file(filename, location)
elif (content_type and content_type.startswith('text/html') and
is_svn_page(file_contents(filename))):
# We don't really care about this
from pip.vcs.subversion import Subversion
Subversion('svn+' + link.url).unpack(location)
else:
# FIXME: handle?
# FIXME: magic signatures?
logger.critical(
'Cannot unpack file %s (downloaded from %s, content-type: %s); '
'cannot detect archive format',
filename, location, content_type,
)
raise InstallationError(
'Cannot determine archive format of %s' % location
)
def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
"""Unpack zip `filename` to `extract_dir`
Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
by ``zipfile.is_zipfile()``). See ``unpack_archive()`` for an explanation
of the `progress_filter` argument.
"""
if not zipfile.is_zipfile(filename):
raise UnrecognizedFormat("%s is not a zip file" % (filename,))
with ContextualZipFile(filename) as z:
for info in z.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name.split('/'):
continue
target = os.path.join(extract_dir, *name.split('/'))
target = progress_filter(name, target)
if not target:
continue
if name.endswith('/'):
# directory
ensure_directory(target)
else:
# file
ensure_directory(target)
data = z.read(info.filename)
with open(target, 'wb') as f:
f.write(data)
unix_attributes = info.external_attr >> 16
if unix_attributes:
os.chmod(target, unix_attributes)
def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % filename)
zip = zipfile.ZipFile(filename)
try:
for info in zip.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name:
continue
target = os.path.join(extract_dir, *name.split('/'))
if not target:
continue
_ensure_directory(target)
if not name.endswith('/'):
# file
data = zip.read(info.filename)
f = open(target, 'wb')
try:
f.write(data)
finally:
f.close()
del data
finally:
zip.close()
def unpack_file(filename, location, content_type, link):
filename = os.path.realpath(filename)
if (content_type == 'application/zip' or
filename.lower().endswith(ZIP_EXTENSIONS) or
zipfile.is_zipfile(filename)):
unzip_file(
filename,
location,
flatten=not filename.endswith('.whl')
)
elif (content_type == 'application/x-gzip' or
tarfile.is_tarfile(filename) or
filename.lower().endswith(
TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
untar_file(filename, location)
elif (content_type and content_type.startswith('text/html') and
is_svn_page(file_contents(filename))):
# We don't really care about this
from pip.vcs.subversion import Subversion
Subversion('svn+' + link.url).unpack(location)
else:
# FIXME: handle?
# FIXME: magic signatures?
logger.critical(
'Cannot unpack file %s (downloaded from %s, content-type: %s); '
'cannot detect archive format',
filename, location, content_type,
)
raise InstallationError(
'Cannot determine archive format of %s' % location
)
def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % filename)
zip = zipfile.ZipFile(filename)
try:
for info in zip.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name:
continue
target = os.path.join(extract_dir, *name.split('/'))
if not target:
continue
_ensure_directory(target)
if not name.endswith('/'):
# file
data = zip.read(info.filename)
f = open(target, 'wb')
try:
f.write(data)
finally:
f.close()
del data
finally:
zip.close()
def unpack_file(filename, location, content_type, link):
filename = os.path.realpath(filename)
if (content_type == 'application/zip' or
filename.lower().endswith(ZIP_EXTENSIONS) or
zipfile.is_zipfile(filename)):
unzip_file(
filename,
location,
flatten=not filename.endswith('.whl')
)
elif (content_type == 'application/x-gzip' or
tarfile.is_tarfile(filename) or
filename.lower().endswith(
TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
untar_file(filename, location)
elif (content_type and content_type.startswith('text/html') and
is_svn_page(file_contents(filename))):
# We don't really care about this
from pip.vcs.subversion import Subversion
Subversion('svn+' + link.url).unpack(location)
else:
# FIXME: handle?
# FIXME: magic signatures?
logger.critical(
'Cannot unpack file %s (downloaded from %s, content-type: %s); '
'cannot detect archive format',
filename, location, content_type,
)
raise InstallationError(
'Cannot determine archive format of %s' % location
)
def unpack_zipfile(filename, extract_dir, progress_filter=default_filter):
"""Unpack zip `filename` to `extract_dir`
Raises ``UnrecognizedFormat`` if `filename` is not a zipfile (as determined
by ``zipfile.is_zipfile()``). See ``unpack_archive()`` for an explanation
of the `progress_filter` argument.
"""
if not zipfile.is_zipfile(filename):
raise UnrecognizedFormat("%s is not a zip file" % (filename,))
with ContextualZipFile(filename) as z:
for info in z.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name.split('/'):
continue
target = os.path.join(extract_dir, *name.split('/'))
target = progress_filter(name, target)
if not target:
continue
if name.endswith('/'):
# directory
ensure_directory(target)
else:
# file
ensure_directory(target)
data = z.read(info.filename)
with open(target, 'wb') as f:
f.write(data)
unix_attributes = info.external_attr >> 16
if unix_attributes:
os.chmod(target, unix_attributes)
def _unpack_zipfile(filename, extract_dir):
"""Unpack zip `filename` to `extract_dir`
"""
try:
import zipfile
except ImportError:
raise ReadError('zlib not supported, cannot unpack this archive.')
if not zipfile.is_zipfile(filename):
raise ReadError("%s is not a zip file" % filename)
zip = zipfile.ZipFile(filename)
try:
for info in zip.infolist():
name = info.filename
# don't extract absolute paths or ones with .. in them
if name.startswith('/') or '..' in name:
continue
target = os.path.join(extract_dir, *name.split('/'))
if not target:
continue
_ensure_directory(target)
if not name.endswith('/'):
# file
data = zip.read(info.filename)
f = open(target, 'wb')
try:
f.write(data)
finally:
f.close()
del data
finally:
zip.close()
def unpack_file(filename, location, content_type, link):
filename = os.path.realpath(filename)
if (content_type == 'application/zip' or
filename.lower().endswith(ZIP_EXTENSIONS) or
zipfile.is_zipfile(filename)):
unzip_file(
filename,
location,
flatten=not filename.endswith('.whl')
)
elif (content_type == 'application/x-gzip' or
tarfile.is_tarfile(filename) or
filename.lower().endswith(
TAR_EXTENSIONS + BZ2_EXTENSIONS + XZ_EXTENSIONS)):
untar_file(filename, location)
elif (content_type and content_type.startswith('text/html') and
is_svn_page(file_contents(filename))):
# We don't really care about this
from pip.vcs.subversion import Subversion
Subversion('svn+' + link.url).unpack(location)
else:
# FIXME: handle?
# FIXME: magic signatures?
logger.critical(
'Cannot unpack file %s (downloaded from %s, content-type: %s); '
'cannot detect archive format',
filename, location, content_type,
)
raise InstallationError(
'Cannot determine archive format of %s' % location
)
