def get_old_style_syllabus(session, class_name, local_page=False, preview=False):
"""
Get the old style course listing webpage.
If we are instructed to use a local page and it already exists, then
that page is used instead of performing a download. If we are
instructed to use a local page and it does not exist, then we download
the page and save a copy of it for future use.
"""
if not (local_page and os.path.exists(local_page)):
url = get_syllabus_url(class_name, preview)
page, final_url = get_page_and_url(session, url)
logging.info('Downloaded %s (%d bytes)', url, len(page))
if "/learn/" in final_url:
# got redirected to a on-demand course page,
# abort and let on_demand download run
raise ClassNotFound
# cache the page if we're in 'local' mode
if local_page:
with open(local_page, 'w') as f:
f.write(page.encode("utf-8"))
else:
with open(local_page) as f:
page = decode_input(f.read())
logging.info('Read (%d bytes) from local file', len(page))
return page
def parseArgs(args=None):
"""
Parse the arguments/options passed to the program on the command line.
"""
parser = argparse.ArgumentParser(
description='Download Coursera.org lecture material and resources.')
# positional
parser.add_argument('class_names',
action='store',
nargs='+',
help='name(s) of the class(es) (e.g. "nlp")')
parser.add_argument('-c',
'--cookies_file',
dest='cookies_file',
action='store',
default=None,
help='full path to the cookies.txt file')
parser.add_argument('-u',
'--username',
dest='username',
action='store',
default=None,
help='coursera username')
parser.add_argument('-n',
'--netrc',
dest='netrc',
nargs='?',
action='store',
const=True,
default=False,
help='use netrc for reading passwords, uses default'
' location if no path specified')
parser.add_argument('-p',
'--password',
dest='password',
action='store',
default=None,
help='coursera password')
# optional
parser.add_argument('--about',
dest='about',
action='store_true',
default=False,
help='download "about" metadata. (Default: False)')
parser.add_argument('-b',
'--preview',
dest='preview',
action='store_true',
default=False,
help='get preview videos. (Default: False)')
parser.add_argument('-f',
'--formats',
dest='file_formats',
action='store',
default='all',
help='file format extensions to be downloaded in'
' quotes space separated, e.g. "mp4 pdf" '
'(default: special value "all")')
parser.add_argument('-sf',
'--section_filter',
dest='section_filter',
action='store',
default=None,
help='only download sections which contain this'
' regex (default: disabled)')
parser.add_argument('-lf',
'--lecture_filter',
dest='lecture_filter',
action='store',
default=None,
help='only download lectures which contain this regex'
' (default: disabled)')
parser.add_argument('-rf',
'--resource_filter',
dest='resource_filter',
action='store',
default=None,
help='only download resources which match this regex'
' (default: disabled)')
parser.add_argument('--wget',
dest='wget',
action='store',
nargs='?',
const='wget',
default=None,
help='use wget for downloading,'
'optionally specify wget bin')
parser.add_argument('--curl',
dest='curl',
action='store',
nargs='?',
const='curl',
default=None,
help='use curl for downloading,'
' optionally specify curl bin')
parser.add_argument('--aria2',
dest='aria2',
action='store',
nargs='?',
const='aria2c',
default=None,
help='use aria2 for downloading,'
' optionally specify aria2 bin')
parser.add_argument('--axel',
dest='axel',
action='store',
nargs='?',
const='axel',
default=None,
help='use axel for downloading,'
' optionally specify axel bin')
# We keep the wget_bin, ... options for backwards compatibility.
parser.add_argument('-w',
'--wget_bin',
dest='wget_bin',
action='store',
default=None,
help='DEPRECATED, use --wget')
parser.add_argument('--curl_bin',
dest='curl_bin',
action='store',
default=None,
help='DEPRECATED, use --curl')
parser.add_argument('--aria2_bin',
dest='aria2_bin',
action='store',
default=None,
help='DEPRECATED, use --aria2')
parser.add_argument('--axel_bin',
dest='axel_bin',
action='store',
default=None,
help='DEPRECATED, use --axel')
parser.add_argument('-o',
'--overwrite',
dest='overwrite',
action='store_true',
default=False,
help='whether existing files should be overwritten'
' (default: False)')
parser.add_argument('-l',
'--process_local_page',
dest='local_page',
help='uses or creates local cached version of syllabus'
' page')
parser.add_argument('--skip-download',
dest='skip_download',
action='store_true',
default=False,
help='for debugging: skip actual downloading of files')
parser.add_argument('--path',
dest='path',
action='store',
default='',
help='path to save the file')
parser.add_argument('--verbose-dirs',
dest='verbose_dirs',
action='store_true',
default=False,
help='include class name in section directory name')
parser.add_argument('--debug',
dest='debug',
action='store_true',
default=False,
help='print lots of debug information')
parser.add_argument('--quiet',
dest='quiet',
action='store_true',
default=False,
help='omit as many messages as possible'
' (only printing errors)')
parser.add_argument('--add-class',
dest='add_class',
action='append',
default=[],
help='additional classes to get')
parser.add_argument('-r',
'--reverse',
dest='reverse',
action='store_true',
default=False,
help='download sections in reverse order')
parser.add_argument('--combined-section-lectures-nums',
dest='combined_section_lectures_nums',
action='store_true',
default=False,
help='include lecture and section name in final files')
parser.add_argument('--hook',
dest='hooks',
action='append',
default=[],
help='hooks to run when finished')
parser.add_argument('-pl',
'--playlist',
dest='playlist',
action='store_true',
default=False,
help='generate M3U playlists for course weeks')
parser.add_argument('--clear-cache',
dest='clear_cache',
action='store_true',
default=False,
help='clear cached cookies')
parser.add_argument('--unrestricted-filenames',
dest='intact_fnames',
action='store_true',
default=False,
help='Do not limit filenames to be ASCII-only')
args = parser.parse_args(args)
# Initialize the logging system first so that other functions
# can use it right away
if args.debug:
logging.basicConfig(level=logging.DEBUG,
format='%(name)s[%(funcName)s] %(message)s')
elif args.quiet:
logging.basicConfig(level=logging.ERROR,
format='%(name)s: %(message)s')
else:
logging.basicConfig(level=logging.INFO, format='%(message)s')
# turn list of strings into list
args.file_formats = args.file_formats.split()
# decode path so we can work properly with cyrillic symbols on different
# versions on Python
args.path = decode_input(args.path)
for bin in ['wget_bin', 'curl_bin', 'aria2_bin', 'axel_bin']:
if getattr(args, bin):
logging.error('The --%s option is deprecated, please use --%s',
bin, bin[:-4])
sys.exit(1)
# check arguments
if args.cookies_file and not os.path.exists(args.cookies_file):
logging.error('Cookies file not found: %s', args.cookies_file)
sys.exit(1)
if not args.cookies_file:
try:
args.username, args.password = get_credentials(
username=args.username,
password=args.password,
netrc=args.netrc)
except CredentialsError as e:
logging.error(e)
sys.exit(1)
return args
def classify(self, text=u''):
""" Predicts the Language of a given text.
:param text: Unicode text to be classified.
"""
text = self.lm.normalize(text)
tokenz = LM.tokenize(text, mode='c')
result = self.lm.calculate(doc_terms=tokenz)
#print 'Karbasa:', self.karbasa(result)
if self.unk and self.lm.karbasa(result) < self.min_karbasa:
lang = 'unk'
else:
lang = result['calc_id']
return lang
if __name__ == '__main__':
l = LangID(unk=False)
l.train()
if len(sys.argv) > 1:
text_in = decode_input(sys.argv[1:])
else:
text_in = u'hello, world'
lang_res = l.classify(text_in)
print text_in, '[ Language:', lang_res, ']'
def parse_args(args=None):
"""
Parse the arguments/options passed to the program on the command line.
"""
parser = argparse.ArgumentParser(description="Download Coursera.org lecture material and resources.")
# Basic options
group_basic = parser.add_argument_group("Basic options")
group_basic.add_argument("class_names", action="store", nargs="+", help='name(s) of the class(es) (e.g. "ml-005")')
group_basic.add_argument(
"-u", "--username", dest="username", action="store", default=None, help="coursera username"
)
group_basic.add_argument(
"-p", "--password", dest="password", action="store", default=None, help="coursera password"
)
group_basic.add_argument(
"--on-demand",
dest="on_demand",
action="store_true",
default=False,
help="[DEPRECATED] get on-demand videos. Do not use"
" this option, it is deprecated. The script will"
" try to detect course type automatically.",
)
group_basic.add_argument(
"-b", # FIXME: kill this one-letter option
"--preview",
dest="preview",
action="store_true",
default=False,
help="get videos from preview pages. (Default: False)",
)
group_basic.add_argument(
"--path",
dest="path",
action="store",
default="",
help="path to where to save the file. (Default: current directory)",
)
group_basic.add_argument(
"-sl", # FIXME: deprecate this option
"--subtitle-language",
dest="subtitle_language",
action="store",
default="en",
help="Choose language to download subtitles. (Default: en)",
)
# Selection of material to download
group_material = parser.add_argument_group("Selection of material to download")
group_material.add_argument(
"--about", # FIXME: should be --about-course
dest="about",
action="store_true",
default=False,
help='download "about" metadata. (Default: False)',
)
group_material.add_argument(
"-f",
"--formats",
dest="file_formats",
action="store",
default="all",
help="file format extensions to be downloaded in"
' quotes space separated, e.g. "mp4 pdf" '
'(default: special value "all")',
)
group_material.add_argument(
"--ignore-formats",
dest="ignore_formats",
action="store",
default=None,
help="file format extensions of resources to ignore" " (default: None)",
)
group_material.add_argument(
"-sf", # FIXME: deprecate this option
"--section_filter",
dest="section_filter",
action="store",
default=None,
help="only download sections which contain this" " regex (default: disabled)",
)
group_material.add_argument(
"-lf", # FIXME: deprecate this option
"--lecture_filter",
dest="lecture_filter",
action="store",
default=None,
help="only download lectures which contain this regex" " (default: disabled)",
)
group_material.add_argument(
"-rf", # FIXME: deprecate this option
"--resource_filter",
dest="resource_filter",
action="store",
default=None,
help="only download resources which match this regex" " (default: disabled)",
)
group_material.add_argument(
"--video-resolution",
dest="video_resolution",
action="store",
default="540p",
help="video resolution to download (default: 540p); "
"only valid for on-demand courses; "
"only values allowed: 360p, 540p, 720p",
)
# Selection of material to download
group_external_dl = parser.add_argument_group("External downloaders")
group_external_dl.add_argument(
"--wget",
dest="wget",
action="store",
nargs="?",
const="wget",
default=None,
help="use wget for downloading," "optionally specify wget bin",
)
group_external_dl.add_argument(
"--curl",
dest="curl",
action="store",
nargs="?",
const="curl",
default=None,
help="use curl for downloading," " optionally specify curl bin",
)
group_external_dl.add_argument(
"--aria2",
dest="aria2",
action="store",
nargs="?",
const="aria2c",
default=None,
help="use aria2 for downloading," " optionally specify aria2 bin",
)
group_external_dl.add_argument(
"--axel",
dest="axel",
action="store",
nargs="?",
const="axel",
default=None,
help="use axel for downloading," " optionally specify axel bin",
)
parser.add_argument(
"--resume",
dest="resume",
action="store_true",
default=False,
help="resume incomplete downloads (default: False)",
)
parser.add_argument(
"-o",
"--overwrite",
dest="overwrite",
action="store_true",
default=False,
help="whether existing files should be overwritten" " (default: False)",
)
parser.add_argument(
"--verbose-dirs",
dest="verbose_dirs",
action="store_true",
default=False,
help="include class name in section directory name",
)
parser.add_argument(
"--quiet",
dest="quiet",
action="store_true",
default=False,
help="omit as many messages as possible" " (only printing errors)",
)
parser.add_argument(
"-r", "--reverse", dest="reverse", action="store_true", default=False, help="download sections in reverse order"
)
parser.add_argument(
"--combined-section-lectures-nums",
dest="combined_section_lectures_nums",
action="store_true",
default=False,
help="include lecture and section name in final files",
)
parser.add_argument(
"--unrestricted-filenames",
dest="intact_fnames",
action="store_true",
default=False,
help="Do not limit filenames to be ASCII-only",
)
parser.add_argument(
"-v",
"--version",
help="Display the version of udemy-dl and exit",
action="version",
version="%(prog)s {version}".format(version=__version__),
)
# Advanced authentication
group_adv_auth = parser.add_argument_group("Advanced authentication options")
group_adv_auth.add_argument(
"-c",
"--cookies_file",
dest="cookies_file",
action="store",
default=None,
help="full path to the cookies.txt file",
)
group_adv_auth.add_argument(
"-n",
"--netrc",
dest="netrc",
nargs="?",
action="store",
const=True,
default=False,
help="use netrc for reading passwords, uses default" " location if no path specified",
)
group_adv_auth.add_argument(
"-k",
"--keyring",
dest="use_keyring",
action="store_true",
default=False,
help="use keyring provided by operating system to " "save and load credentials",
)
group_adv_auth.add_argument(
"--clear-cache", dest="clear_cache", action="store_true", default=False, help="clear cached cookies"
)
# Advanced miscellaneous options
group_adv_misc = parser.add_argument_group("Advanced miscellaneous options")
group_adv_misc.add_argument("--hook", dest="hooks", action="append", default=[], help="hooks to run when finished")
group_adv_misc.add_argument(
"-pl",
"--playlist",
dest="playlist",
action="store_true",
default=False,
help="generate M3U playlists for course weeks",
)
# Debug options
group_debug = parser.add_argument_group("Debugging options")
group_debug.add_argument(
"--skip-download",
dest="skip_download",
action="store_true",
default=False,
help="for debugging: skip actual downloading of files",
)
group_debug.add_argument(
"--debug", dest="debug", action="store_true", default=False, help="print lots of debug information"
)
group_debug.add_argument(
"-l", # FIXME: remove short option from rarely used ones
"--process_local_page",
dest="local_page",
help="uses or creates local cached version of syllabus" " page",
)
# Final parsing of the options
args = parser.parse_args(args)
# Initialize the logging system first so that other functions
# can use it right away
if args.debug:
logging.basicConfig(level=logging.DEBUG, format="%(name)s[%(funcName)s] %(message)s")
elif args.quiet:
logging.basicConfig(level=logging.ERROR, format="%(name)s: %(message)s")
else:
logging.basicConfig(level=logging.INFO, format="%(message)s")
# turn list of strings into list
args.file_formats = args.file_formats.split()
# decode path so we can work properly with cyrillic symbols on different
# versions on Python
args.path = decode_input(args.path)
# check arguments
if args.use_keyring and args.password:
logging.warning("--keyring and --password cannot be specified together")
args.use_keyring = False
if args.use_keyring and not keyring:
logging.warning("The python module `keyring` not found.")
args.use_keyring = False
if args.cookies_file and not os.path.exists(args.cookies_file):
logging.error("Cookies file not found: %s", args.cookies_file)
sys.exit(1)
if not args.cookies_file:
try:
args.username, args.password = get_credentials(
username=args.username, password=args.password, netrc=args.netrc, use_keyring=args.use_keyring
)
except CredentialsError as e:
logging.error(e)
sys.exit(1)
return args
def parse_args(args=None):
"""
Parse the arguments/options passed to the program on the command line.
"""
parser = argparse.ArgumentParser(
description='Download Coursera.org lecture material and resources.')
# Basic options
group_basic = parser.add_argument_group('Basic options')
group_basic.add_argument('class_names',
action='store',
nargs='+',
help='name(s) of the class(es) (e.g. "ml-005")')
group_basic.add_argument('-u',
'--username',
dest='username',
action='store',
default=None,
help='coursera username')
group_basic.add_argument('-p',
'--password',
dest='password',
action='store',
default=None,
help='coursera password')
group_basic.add_argument('--on-demand', # FIXME: remove this option
dest='on_demand',
action='store_true',
default=False,
help='[DEPRECATED] get on-demand videos. Do not use'
' this option, it is deprecated. The script will'
' try to detect course type automatically.')
group_basic.add_argument('-b', # FIXME: kill this one-letter option
'--preview',
dest='preview',
action='store_true',
default=False,
help='get videos from preview pages. (Default: False)')
group_basic.add_argument('--path',
dest='path',
action='store',
default='',
help='path to where to save the file. (Default: current directory)')
group_basic.add_argument('-sl', # FIXME: deprecate this option
'--subtitle-language',
dest='subtitle_language',
action='store',
default='all',
help='Choose language to download subtitles and transcripts. (Default: all)'
'Use special value "all" to download all available.')
# Selection of material to download
group_material = parser.add_argument_group('Selection of material to download')
group_material.add_argument('--about', # FIXME: should be --about-course
dest='about',
action='store_true',
default=False,
help='download "about" metadata. (Default: False)')
group_material.add_argument('-f',
'--formats',
dest='file_formats',
action='store',
default='all',
help='file format extensions to be downloaded in'
' quotes space separated, e.g. "mp4 pdf" '
'(default: special value "all")')
group_material.add_argument('--ignore-formats',
dest='ignore_formats',
action='store',
default=None,
help='file format extensions of resources to ignore'
' (default: None)')
group_material.add_argument('-sf', # FIXME: deprecate this option
'--section_filter',
dest='section_filter',
action='store',
default=None,
help='only download sections which contain this'
' regex (default: disabled)')
group_material.add_argument('-lf', # FIXME: deprecate this option
'--lecture_filter',
dest='lecture_filter',
action='store',
default=None,
help='only download lectures which contain this regex'
' (default: disabled)')
group_material.add_argument('-rf', # FIXME: deprecate this option
'--resource_filter',
dest='resource_filter',
action='store',
default=None,
help='only download resources which match this regex'
' (default: disabled)')
group_material.add_argument('--video-resolution',
dest='video_resolution',
action='store',
default=None,
help='video resolution to download (default: None); '
'only valid for on-demand courses; '
'only values allowed: 360p, 540p, 720p')
group_material.add_argument('--disable-url-skipping',
dest='disable_url_skipping',
action='store_true',
default=False,
help='disable URL skipping, all URLs will be '
'downloaded (default: False)')
# Selection of material to download
group_external_dl = parser.add_argument_group('External downloaders')
group_external_dl.add_argument('--wget',
dest='wget',
action='store',
nargs='?',
const='wget',
default=None,
help='use wget for downloading,'
'optionally specify wget bin')
group_external_dl.add_argument('--curl',
dest='curl',
action='store',
nargs='?',
const='curl',
default=None,
help='use curl for downloading,'
' optionally specify curl bin')
group_external_dl.add_argument('--aria2',
dest='aria2',
action='store',
nargs='?',
const='aria2c',
default=None,
help='use aria2 for downloading,'
' optionally specify aria2 bin')
group_external_dl.add_argument('--axel',
dest='axel',
action='store',
nargs='?',
const='axel',
default=None,
help='use axel for downloading,'
' optionally specify axel bin')
group_external_dl.add_argument('--downloader-arguments',
dest='downloader_arguments',
default='',
help='additional arguments passed to the'
' downloader')
parser.add_argument('--resume',
dest='resume',
action='store_true',
default=False,
help='resume incomplete downloads (default: False)')
parser.add_argument('-o',
'--overwrite',
dest='overwrite',
action='store_true',
default=False,
help='whether existing files should be overwritten'
' (default: False)')
parser.add_argument('--verbose-dirs',
dest='verbose_dirs',
action='store_true',
default=False,
help='include class name in section directory name')
parser.add_argument('--quiet',
dest='quiet',
action='store_true',
default=False,
help='omit as many messages as possible'
' (only printing errors)')
parser.add_argument('-r',
'--reverse',
dest='reverse',
action='store_true',
default=False,
help='download sections in reverse order')
parser.add_argument('--combined-section-lectures-nums',
dest='combined_section_lectures_nums',
action='store_true',
default=False,
help='include lecture and section name in final files')
parser.add_argument('--unrestricted-filenames',
dest='unrestricted_filenames',
action='store_true',
default=False,
help='Do not limit filenames to be ASCII-only')
# Advanced authentication
group_adv_auth = parser.add_argument_group('Advanced authentication options')
group_adv_auth.add_argument('-c',
'--cookies_file',
dest='cookies_file',
action='store',
default=None,
help='full path to the cookies.txt file')
group_adv_auth.add_argument('-n',
'--netrc',
dest='netrc',
nargs='?',
action='store',
const=True,
default=False,
help='use netrc for reading passwords, uses default'
' location if no path specified')
group_adv_auth.add_argument('-k',
'--keyring',
dest='use_keyring',
action='store_true',
default=False,
help='use keyring provided by operating system to '
'save and load credentials')
group_adv_auth.add_argument('--clear-cache',
dest='clear_cache',
action='store_true',
default=False,
help='clear cached cookies')
# Advanced miscellaneous options
group_adv_misc = parser.add_argument_group('Advanced miscellaneous options')
group_adv_misc.add_argument('--hook',
dest='hooks',
action='append',
default=[],
help='hooks to run when finished')
group_adv_misc.add_argument('-pl',
'--playlist',
dest='playlist',
action='store_true',
default=False,
help='generate M3U playlists for course weeks')
# Debug options
group_debug = parser.add_argument_group('Debugging options')
group_debug.add_argument('--skip-download',
dest='skip_download',
action='store_true',
default=False,
help='for debugging: skip actual downloading of files')
group_debug.add_argument('--debug',
dest='debug',
action='store_true',
default=False,
help='print lots of debug information')
group_debug.add_argument('--version',
dest='version',
action='store_true',
default=False,
help='display version and exit')
group_debug.add_argument('-l', # FIXME: remove short option from rarely used ones
'--process_local_page',
dest='local_page',
help='uses or creates local cached version of syllabus'
' page')
# Final parsing of the options
args = parser.parse_args(args)
# Initialize the logging system first so that other functions
# can use it right away
if args.debug:
logging.basicConfig(level=logging.DEBUG,
format='%(name)s[%(funcName)s] %(message)s')
elif args.quiet:
logging.basicConfig(level=logging.ERROR,
format='%(name)s: %(message)s')
else:
logging.basicConfig(level=logging.INFO,
format='%(message)s')
# show version?
if args.version:
# we use print (not logging) function because version may be used
# by some external script while logging may output excessive information
print(__version__)
sys.exit(0)
# turn list of strings into list
args.downloader_arguments = args.downloader_arguments.split()
# turn list of strings into list
args.file_formats = args.file_formats.split()
# decode path so we can work properly with cyrillic symbols on different
# versions on Python
args.path = decode_input(args.path)
# check arguments
if args.use_keyring and args.password:
logging.warning('--keyring and --password cannot be specified together')
args.use_keyring = False
if args.use_keyring and not keyring:
logging.warning('The python module `keyring` not found.')
args.use_keyring = False
if args.cookies_file and not os.path.exists(args.cookies_file):
logging.error('Cookies file not found: %s', args.cookies_file)
sys.exit(1)
return args
def create_and_send_tx(client_socket: socket.socket, user):
sender = utils.get_public_key(user)
command = gui_metadata(TX_COMMAND)
client_socket.send(command)
inputs = []
N_inputs = int.from_bytes(client_socket.recv(4), 'little')
for _ in range(N_inputs):
input_data = client_socket.recv(159)
inputs.append(utils.decode_input(input_data))
input_choices = [
{
'name': f'txID: {input.where_created} value: {input.value}',
}
for index, input in enumerate(inputs)
]
recipient_choices = [
{
'name': 'Alice',
}, {
'name': 'Bob',
}, {
'name': 'Charlie',
}, {
'name': 'No more pays',
},
]
actions = [{
'type': 'checkbox',
'name': INPUT_INDEX,
'message': 'Selecciona los inputs a ingresar en la transacción',
'choices': input_choices,
}]
recipient_actions = [{
'type': 'list',
'name': 'recipient',
'message': 'Selecciona a la persona que le pagarás',
'choices': recipient_choices,
}]
value_actions = [{
'type': 'input',
'name': 'value',
'message': '¿Cuánto le vas a pagar?',
}]
answers = prompt(actions)
inputs_selected = answers.get(INPUT_INDEX)
inputs_to_pay = []
for inputs_selected in inputs_selected:
index = input_choices.index({'name': inputs_selected})
inputs_to_pay.append(inputs[index])
outputs = []
while True:
answers = prompt(recipient_actions)
answer = answers['recipient']
if answer == 'No more pays':
break
recipient = utils.get_public_key(answer)
answers = prompt(value_actions)
value = int(answers['value'])
output = Output(value, recipient)
outputs.append(output)
unsigned = UnsignedTransaction(PAYCOINS_TYPE, inputs_to_pay, outputs)
to_sign = unsigned.DataForSigs()
signs = {}
signs[sender.export_key(format='DER')] = sign(to_sign, utils.get_private_key(user))
transaction = Transaction(unsigned, signs)
client_socket.send(transaction.serialize())
def parseArgs(args=None):
"""
Parse the arguments/options passed to the program on the command line.
"""
parser = argparse.ArgumentParser(
description='Download Coursera.org lecture material and resources.')
# positional
parser.add_argument('class_names',
action='store',
nargs='+',
help='name(s) of the class(es) (e.g. "nlp")')
parser.add_argument('-c',
'--cookies_file',
dest='cookies_file',
action='store',
default=None,
help='full path to the cookies.txt file')
parser.add_argument('-u',
'--username',
dest='username',
action='store',
default=None,
help='coursera username')
parser.add_argument('-n',
'--netrc',
dest='netrc',
nargs='?',
action='store',
const=True,
default=False,
help='use netrc for reading passwords, uses default'
' location if no path specified')
parser.add_argument('-p',
'--password',
dest='password',
action='store',
default=None,
help='coursera password')
# optional
parser.add_argument('--about',
dest='about',
action='store_true',
default=False,
help='download "about" metadata. (Default: False)')
parser.add_argument('-b',
'--preview',
dest='preview',
action='store_true',
default=False,
help='get preview videos. (Default: False)')
parser.add_argument('-f',
'--formats',
dest='file_formats',
action='store',
default='all',
help='file format extensions to be downloaded in'
' quotes space separated, e.g. "mp4 pdf" '
'(default: special value "all")')
parser.add_argument('-sf',
'--section_filter',
dest='section_filter',
action='store',
default=None,
help='only download sections which contain this'
' regex (default: disabled)')
parser.add_argument('-lf',
'--lecture_filter',
dest='lecture_filter',
action='store',
default=None,
help='only download lectures which contain this regex'
' (default: disabled)')
parser.add_argument('-rf',
'--resource_filter',
dest='resource_filter',
action='store',
default=None,
help='only download resources which match this regex'
' (default: disabled)')
parser.add_argument('--wget',
dest='wget',
action='store',
nargs='?',
const='wget',
default=None,
help='use wget for downloading,'
'optionally specify wget bin')
parser.add_argument('--curl',
dest='curl',
action='store',
nargs='?',
const='curl',
default=None,
help='use curl for downloading,'
' optionally specify curl bin')
parser.add_argument('--aria2',
dest='aria2',
action='store',
nargs='?',
const='aria2c',
default=None,
help='use aria2 for downloading,'
' optionally specify aria2 bin')
parser.add_argument('--axel',
dest='axel',
action='store',
nargs='?',
const='axel',
default=None,
help='use axel for downloading,'
' optionally specify axel bin')
# We keep the wget_bin, ... options for backwards compatibility.
parser.add_argument('-w',
'--wget_bin',
dest='wget_bin',
action='store',
default=None,
help='DEPRECATED, use --wget')
parser.add_argument('--curl_bin',
dest='curl_bin',
action='store',
default=None,
help='DEPRECATED, use --curl')
parser.add_argument('--aria2_bin',
dest='aria2_bin',
action='store',
default=None,
help='DEPRECATED, use --aria2')
parser.add_argument('--axel_bin',
dest='axel_bin',
action='store',
default=None,
help='DEPRECATED, use --axel')
parser.add_argument('-o',
'--overwrite',
dest='overwrite',
action='store_true',
default=False,
help='whether existing files should be overwritten'
' (default: False)')
parser.add_argument('-l',
'--process_local_page',
dest='local_page',
help='uses or creates local cached version of syllabus'
' page')
parser.add_argument('--skip-download',
dest='skip_download',
action='store_true',
default=False,
help='for debugging: skip actual downloading of files')
parser.add_argument('--path',
dest='path',
action='store',
default='',
help='path to save the file')
parser.add_argument('--verbose-dirs',
dest='verbose_dirs',
action='store_true',
default=False,
help='include class name in section directory name')
parser.add_argument('--debug',
dest='debug',
action='store_true',
default=False,
help='print lots of debug information')
parser.add_argument('--quiet',
dest='quiet',
action='store_true',
default=False,
help='omit as many messages as possible'
' (only printing errors)')
parser.add_argument('--add-class',
dest='add_class',
action='append',
default=[],
help='additional classes to get')
parser.add_argument('-r',
'--reverse',
dest='reverse',
action='store_true',
default=False,
help='download sections in reverse order')
parser.add_argument('--combined-section-lectures-nums',
dest='combined_section_lectures_nums',
action='store_true',
default=False,
help='include lecture and section name in final files')
parser.add_argument('--hook',
dest='hooks',
action='append',
default=[],
help='hooks to run when finished')
parser.add_argument('-pl',
'--playlist',
dest='playlist',
action='store_true',
default=False,
help='generate M3U playlists for course weeks')
parser.add_argument('--clear-cache',
dest='clear_cache',
action='store_true',
default=False,
help='clear cached cookies')
parser.add_argument('--unrestricted-filenames',
dest='intact_fnames',
action='store_true',
default=False,
help='Do not limit filenames to be ASCII-only')
args = parser.parse_args(args)
# Initialize the logging system first so that other functions
# can use it right away
if args.debug:
logging.basicConfig(level=logging.DEBUG,
format='%(name)s[%(funcName)s] %(message)s')
elif args.quiet:
logging.basicConfig(level=logging.ERROR,
format='%(name)s: %(message)s')
else:
logging.basicConfig(level=logging.INFO,
format='%(message)s')
# turn list of strings into list
args.file_formats = args.file_formats.split()
# decode path so we can work properly with cyrillic symbols on different
# versions on Python
args.path = decode_input(args.path)
for bin in ['wget_bin', 'curl_bin', 'aria2_bin', 'axel_bin']:
if getattr(args, bin):
logging.error('The --%s option is deprecated, please use --%s',
bin, bin[:-4])
sys.exit(1)
# check arguments
if args.cookies_file and not os.path.exists(args.cookies_file):
logging.error('Cookies file not found: %s', args.cookies_file)
sys.exit(1)
if not args.cookies_file:
try:
args.username, args.password = get_credentials(
username=args.username, password=args.password,
netrc=args.netrc)
except CredentialsError as e:
logging.error(e)
sys.exit(1)
return args
