def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> objconf = Objectify({'url': get_path('bbc.html')})
>>> result = parser(None, objconf, stream={})
>>> next(result)['title'] == 'Using NFC tags in the car'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
rss = autorss.get_rss(url)
link = get_abspath(next(rss)['link'])
parsed = parse_rss(link)
stream = gen_entries(parsed)
return stream
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
conf (dict): The pipe configuration
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> objconf = Objectify({'url': get_path('feed.xml'), 'sleep': 0})
>>> result = parser(None, objconf, stream={})
>>> next(result)['title'] == 'Donations'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
parsed = parse_rss(url, objconf.sleep)
stream = gen_entries(parsed)
return stream
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> url = get_path('gigs.json')
>>> objconf = Objectify({'url': url, 'path': 'value.items'})
>>> result = parser(None, objconf, stream={})
>>> result[0]['title'] == 'Business System Analyst'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
ext = splitext(url)[1].lstrip('.')
with closing(urlopen(url)) as f:
stream = any2dict(f, ext, objconf.html5, path=objconf.path)
return stream
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> objconf = Objectify({'url': get_path('bbc.html')})
>>> result = parser(None, objconf, stream={})
>>> next(result)['link'] == 'file://riko/data/greenhughes.xml'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
stream = autorss.get_rss(url)
return stream
def async_parser(base, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
base (str): The base currency (exchanging from)
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
assign (str): Attribute to assign parsed content (default: exchangerate)
stream (dict): The original item
Returns:
Deferred: twisted.internet.defer.Deferred item
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> def run(reactor):
... url = get_path('quote.json')
... conf = {
... 'url': url, 'currency': 'USD', 'sleep': 0, 'precision': 6}
... item = {'content': 'GBP'}
... objconf = Objectify(conf)
... kwargs = {'stream': item, 'assign': 'content'}
... d = async_parser(item['content'], objconf, **kwargs)
... return d.addCallbacks(print, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
1.545801
"""
same_currency = base == objconf.currency
if skip:
rate = kwargs['stream']
elif same_currency:
rate = Decimal(1)
elif objconf.url.startswith('http'):
r = yield treq.get(objconf.url, params=objconf.params)
json = yield treq.json(r)
else:
url = get_abspath(objconf.url)
content = yield io.async_url_read(url, delay=objconf.sleep)
json = loads(decode(content))
if not (skip or same_currency):
places = Decimal(10)**-objconf.precision
rates = parse_response(json)
rate = calc_rate(base, objconf.currency, rates, places=places)
return_value(rate)
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> def run(reactor):
... callback = lambda x: print(next(x)['title'])
... objconf = Objectify({'url': get_path('bbc.html')})
... d = async_parser(None, objconf, stream={})
... return d.addCallbacks(callback, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
Using NFC tags in the car
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
rss = yield autorss.async_get_rss(url)
link = get_abspath(next(rss)['link'])
content = yield io.async_url_read(link)
parsed = parse_rss(content)
stream = gen_entries(parsed)
return_value(stream)
def parser(base, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
base (str): The base currency (exchanging from)
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
assign (str): Attribute to assign parsed content (default: exchangerate)
stream (dict): The original item
Returns:
dict: The item
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> url = get_path('quote.json')
>>> conf = {'url': url, 'currency': 'USD', 'sleep': 0, 'precision': 6}
>>> item = {'content': 'GBP'}
>>> objconf = Objectify(conf)
>>> kwargs = {'stream': item, 'assign': 'content'}
>>> parser(item['content'], objconf, **kwargs)
Decimal('1.545801')
"""
same_currency = base == objconf.currency
if skip:
rate = kwargs['stream']
elif same_currency:
rate = Decimal(1)
elif objconf.url.startswith('http'):
get = partial(requests.get, stream=True)
sget = memoize(HALF_DAY)(get) if objconf.memoize else get
r = sget(objconf.url, params=objconf.params)
r.raw.decode_content = True
json = next(items(r.raw, ''))
else:
context = SleepyDict(delay=objconf.sleep)
url = get_abspath(objconf.url)
try:
with closing(urlopen(url, context=context)) as f:
json = next(items(f, ''))
except TypeError:
with closing(urlopen(url)) as f:
json = next(items(f, ''))
if not (skip or same_currency):
places = Decimal(10)**-objconf.precision
rates = parse_response(json)
rate = calc_rate(base, objconf.currency, rates, places=places)
return rate
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
assign (str): Attribute to assign parsed content (default: content)
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>> from meza._compat import decode
>>>
>>> def run(reactor):
... callback = lambda x: print(decode(next(x)['content'][:32]))
... url = get_path('cnn.html')
... conf = {'url': url, 'start': '<title>', 'end': '</title>'}
... objconf = Objectify(conf)
... kwargs = {'stream': {}, 'assign': 'content'}
... d = async_parser(None, objconf, **kwargs)
... return d.addCallbacks(callback, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
CNN.com International - Breaking
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
content = yield io.async_url_read(url)
parsed = get_string(content, objconf.start, objconf.end)
detagged = get_text(parsed) if objconf.detag else parsed
splits = detagged.split(objconf.token) if objconf.token else [detagged]
stream = ({kwargs['assign']: chunk} for chunk in splits)
return_value(stream)
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> def run(reactor):
... callback = lambda x: print(next(x)['mileage'])
... url = get_path('spreadsheet.csv')
... conf = {'url': url, 'sanitize': True, 'skip_rows': 0}
... objconf = Objectify(conf)
... d = async_parser(None, objconf, stream={})
... return d.addCallbacks(callback, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
7213
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
response = yield io.async_url_open(url)
first_row, custom_header = objconf.skip_rows, objconf.col_names
renamed = {'first_row': first_row, 'custom_header': custom_header}
rkwargs = merge([objconf, renamed])
_stream = read_csv(response, **rkwargs)
stream = auto_close(_stream, response)
return_value(stream)
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> def run(reactor):
... callback = lambda x: print(x[0]['title'])
... url = get_path('gigs.json')
... objconf = Objectify({'url': url, 'path': 'value.items'})
... d = async_parser(None, objconf, stream={})
... return d.addCallbacks(callback, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
Business System Analyst
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
ext = splitext(url)[1].lstrip('.')
f = yield io.async_url_open(url)
stream = any2dict(f, ext, objconf.html5, path=objconf.path)
f.close()
return_value(stream)
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
stream (dict): The original item
conf (dict): The pipe configuration
Returns:
Deferred: twisted.internet.defer.Deferred Iter[dict]
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> def run(reactor):
... callback = lambda x: print(next(x)['title'])
... objconf = Objectify({'url': get_path('feed.xml'), 'sleep': 0})
... d = async_parser(None, objconf, stream={})
... return d.addCallbacks(callback, logger.error)
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
Donations
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
content = yield io.async_url_read(url, delay=objconf.sleep)
parsed = parse_rss(content)
stream = gen_entries(parsed)
return_value(stream)
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
Returns:
Iter[dict]: The stream of items
Examples:
>>> from meza.fntools import Objectify
>>> from riko import get_path
>>> from meza._compat import decode
>>>
>>> url = get_path('cnn.html')
>>> conf = {'url': url, 'start': '<title>', 'end': '</title>'}
>>> objconf = Objectify(conf)
>>> kwargs = {'stream': {}, 'assign': 'content'}
>>> result = parser(None, objconf, **kwargs)
>>> resp = next(result)['content'][:21]
>>> decode(resp) == 'CNN.com International'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
with closing(urlopen(url)) as response:
f = response.fp
encoding = get_response_encoding(response, 'utf-8')
decoded = iterdecode(f, encoding)
sliced = betwix(decoded, objconf.start, objconf.end, True)
content = '\n'.join(sliced)
parsed = get_string(content, objconf.start, objconf.end)
detagged = get_text(parsed) if objconf.detag else parsed
splits = detagged.split(objconf.token) if objconf.token else [detagged]
stream = ({kwargs['assign']: chunk} for chunk in splits)
return stream
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
Returns:
Iter[dict]: The stream of items
Examples:
>>> from meza.fntools import Objectify
>>> from riko import get_path
>>>
>>> url = get_path('ouseful.xml')
>>> objconf = Objectify({'url': url, 'xpath': '/rss/channel/item'})
>>> result = parser(None, objconf, stream={})
>>> title = 'Running “Native” Data Wrangling Applications'
>>> next(result)['title'][:44] == title
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
ext = splitext(url)[1].lstrip('.')
xml = (ext == 'xml') or objconf.strict
with closing(urlopen(url)) as f:
root = xml2etree(f, xml=xml, html5=objconf.html5).getroot()
elements = xpath(root, objconf.xpath)
items = map(etree2dict, elements)
stringified = ({kwargs['assign']: str(i)} for i in items)
stream = stringified if objconf.stringify else items
return stream
def parser(_, objconf, skip=False, **kwargs):
""" Parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from meza.fntools import Objectify
>>>
>>> url = get_path('spreadsheet.csv')
>>> conf = {'url': url, 'sanitize': True, 'skip_rows': 0}
>>> objconf = Objectify(conf)
>>> result = parser(None, objconf, stream={})
>>> next(result)['mileage'] == '7213'
True
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
first_row, custom_header = objconf.skip_rows, objconf.col_names
renamed = {'first_row': first_row, 'custom_header': custom_header}
response = urlopen(url)
encoding = get_response_encoding(response, objconf.encoding)
rkwargs = merge([objconf, renamed])
rkwargs['encoding'] = encoding
_stream = read_csv(response, **rkwargs)
stream = auto_close(_stream, response)
return stream
def async_parser(_, objconf, skip=False, **kwargs):
""" Asynchronously parses the pipe content
Args:
_ (None): Ignored
objconf (obj): The pipe configuration (an Objectify instance)
skip (bool): Don't parse the content
kwargs (dict): Keyword arguments
Kwargs:
assign (str): Attribute to assign parsed content (default: content)
stream (dict): The original item
Returns:
Iter[dict]: The stream of items
Examples:
>>> from riko import get_path
>>> from riko.bado import react
>>> from riko.bado.mock import FakeReactor
>>> from meza.fntools import Objectify
>>>
>>> @coroutine
... def run(reactor):
... xml_url = get_path('ouseful.xml')
... xml_conf = {'url': xml_url, 'xpath': '/rss/channel/item'}
... xml_objconf = Objectify(xml_conf)
... xml_args = (None, xml_objconf)
... html_url = get_path('sciencedaily.html')
... html_conf = {'url': html_url, 'xpath': '/html/head/title'}
... html_objconf = Objectify(html_conf)
... html_args = (None, html_objconf)
... kwargs = {'stream': {}}
...
... try:
... xml_stream = yield async_parser(*xml_args, **kwargs)
... html_stream = yield async_parser(*html_args, **kwargs)
... print(next(xml_stream)['title'][:44])
... print(next(html_stream))
... except Exception as e:
... logger.error(e)
... logger.error(traceback.format_exc())
...
>>>
>>> try:
... react(run, _reactor=FakeReactor())
... except SystemExit:
... pass
...
Running “Native” Data Wrangling Applications
Help Page -- ScienceDaily
"""
if skip:
stream = kwargs['stream']
else:
url = get_abspath(objconf.url)
ext = splitext(url)[1].lstrip('.')
xml = (ext == 'xml') or objconf.strict
try:
f = yield io.async_url_open(url)
tree = yield util.xml2etree(f, xml=xml)
except Exception as e:
logger.error(e)
logger.error(traceback.format_exc())
elements = xpath(tree, objconf.xpath)
f.close()
items = map(util.etree2dict, elements)
stringified = ({kwargs['assign']: encode(i)} for i in items)
stream = stringified if objconf.stringify else items
return_value(stream)