def _read(io):
"""Try to read from a url, file or string.
Parameters
----------
io : str, unicode, or file-like
Returns
-------
raw_text : str
"""
if _is_url(io):
try:
with contextlib.closing(urllib2.urlopen(io)) as url:
raw_text = url.read()
except urllib2.URLError:
raise ValueError('Invalid URL: "{0}"'.format(io))
elif hasattr(io, 'read'):
raw_text = io.read()
elif os.path.isfile(io):
with open(io) as f:
raw_text = f.read()
elif isinstance(io, basestring):
raw_text = io
else:
raise ValueError("Cannot read object of type '{0}'".format(type(io)))
return raw_text
def _build_doc(self):
"""
Raises
------
IOError
* If a valid URL is detected, but for some reason cannot be parsed.
This is probably due to a faulty or non-existent internet
connection.
ValueError
* If a URL that lxml cannot parse is passed.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring
try:
# try to parse the input in the simplest way
return parse(self.io)
except (UnicodeDecodeError, IOError):
# something went wrong, check for not-a-url because it's probably a
# huge string blob
if not _is_url(self.io):
return fromstring(self.io)
elif urlparse.urlparse(self.io).scheme not in ('http', 'ftp',
'file'):
raise ValueError('"{0}" does not have a valid URL'
' protocol'.format(self.io))
else:
raise IOError('"{0}" is a valid URL, so you probably are not'
' properly connected to the'
' internet'.format(self.io))
def _read(io):
"""Try to read from a url, file or string.
Parameters
----------
io : str, unicode, or file-like
Returns
-------
raw_text : str
"""
if _is_url(io):
try:
with contextlib.closing(urllib2.urlopen(io)) as url:
raw_text = url.read()
except urllib2.URLError:
raise ValueError('Invalid URL: "{0}"'.format(io))
elif hasattr(io, 'read'):
raw_text = io.read()
elif os.path.isfile(io):
with open(io) as f:
raw_text = f.read()
elif isinstance(io, basestring):
raw_text = io
else:
raise ValueError("Cannot read object of type '{0}'".format(type(io)))
return raw_text
def _build_doc(self):
"""
Raises
------
IOError
* If a valid URL is detected, but for some reason cannot be parsed.
This is probably due to a faulty or non-existent internet
connection.
ValueError
* If a URL that lxml cannot parse is passed.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring
try:
# try to parse the input in the simplest way
return parse(self.io)
except (UnicodeDecodeError, IOError):
# something went wrong, check for not-a-url because it's probably a
# huge string blob
if not _is_url(self.io):
return fromstring(self.io)
elif urlparse.urlparse(self.io).scheme not in ('http', 'ftp',
'file'):
raise ValueError('"{0}" does not have a valid URL'
' protocol'.format(self.io))
else:
raise IOError('"{0}" is a valid URL, so you probably are not'
' properly connected to the'
' internet'.format(self.io))
def _build_doc(self):
"""
Raises
------
ValueError
* If a URL that lxml cannot parse is passed.
Exception
* Any other ``Exception`` thrown. For example, trying to parse a
URL that is syntactically correct on a machine with no internet
connection will fail.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring, HTMLParser
from lxml.etree import XMLSyntaxError
parser = HTMLParser(recover=False)
try:
# try to parse the input in the simplest way
r = parse(self.io, parser=parser)
try:
r = r.getroot()
except AttributeError:
pass
except (UnicodeDecodeError, IOError):
# if the input is a blob of html goop
if not _is_url(self.io):
r = fromstring(self.io, parser=parser)
try:
r = r.getroot()
except AttributeError:
pass
else:
# not a url
scheme = urlparse.urlparse(self.io).scheme
if scheme not in _valid_schemes:
# lxml can't parse it
msg = ('{0} is not a valid url scheme, valid schemes are '
'{1}').format(scheme, _valid_schemes)
raise ValueError(msg)
else:
# something else happened: maybe a faulty connection
raise
else:
if not hasattr(r, 'text_content'):
raise XMLSyntaxError("no text parsed from document", 0, 0, 0)
return r
def _build_doc(self):
"""
Raises
------
ValueError
* If a URL that lxml cannot parse is passed.
Exception
* Any other ``Exception`` thrown. For example, trying to parse a
URL that is syntactically correct on a machine with no internet
connection will fail.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring, HTMLParser
from lxml.etree import XMLSyntaxError
parser = HTMLParser(recover=False)
try:
# try to parse the input in the simplest way
r = parse(self.io, parser=parser)
try:
r = r.getroot()
except AttributeError:
pass
except (UnicodeDecodeError, IOError):
# if the input is a blob of html goop
if not _is_url(self.io):
r = fromstring(self.io, parser=parser)
try:
r = r.getroot()
except AttributeError:
pass
else:
# not a url
scheme = urlparse.urlparse(self.io).scheme
if scheme not in _valid_schemes:
# lxml can't parse it
msg = ('{0} is not a valid url scheme, valid schemes are '
'{1}').format(scheme, _valid_schemes)
raise ValueError(msg)
else:
# something else happened: maybe a faulty connection
raise
else:
if not hasattr(r, 'text_content'):
raise XMLSyntaxError("no text parsed from document", 0, 0, 0)
return r
def _build_doc(self):
if _is_url(self.io):
try:
with contextlib.closing(urllib2.urlopen(self.io)) as url:
raw_text = url.read()
except urllib2.URLError:
raise ValueError('Invalid URL: "{0}"'.format(self.io))
elif hasattr(self.io, 'read'):
raw_text = self.io.read()
elif os.path.isfile(self.io):
with open(self.io) as f:
raw_text = f.read()
elif isinstance(self.io, basestring):
raw_text = self.io
else:
raise ValueError("Cannot read object of"
" type '{0}'".format(type(self.io)))
assert raw_text, 'No text parsed from document'
from bs4 import BeautifulSoup, SoupStrainer
strainer = SoupStrainer('table')
return BeautifulSoup(raw_text, parse_only=strainer)
def _build_doc(self):
if _is_url(self.io):
try:
with contextlib.closing(urllib2.urlopen(self.io)) as url:
raw_text = url.read()
except urllib2.URLError:
raise ValueError('Invalid URL: "{0}"'.format(self.io))
elif hasattr(self.io, 'read'):
raw_text = self.io.read()
elif os.path.isfile(self.io):
with open(self.io) as f:
raw_text = f.read()
elif isinstance(self.io, basestring):
raw_text = self.io
else:
raise ValueError("Cannot read object of"
" type '{0}'".format(type(self.io)))
assert raw_text, 'No text parsed from document'
from bs4 import BeautifulSoup, SoupStrainer
strainer = SoupStrainer('table')
return BeautifulSoup(raw_text, parse_only=strainer)
def _build_doc(self):
"""
Raises
------
ValueError
* If a URL that lxml cannot parse is passed.
Exception
* Any other ``Exception`` thrown. For example, trying to parse a
URL that is syntactically correct on a machine with no internet
connection will fail.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring
from lxml.html.clean import clean_html
try:
# try to parse the input in the simplest way
r = parse(self.io)
except (UnicodeDecodeError, IOError) as e:
# if the input is a blob of html goop
if not _is_url(self.io):
r = fromstring(self.io)
else:
# not a url
scheme = urlparse.urlparse(self.io).scheme
if scheme not in _valid_schemes:
# lxml can't parse it
msg = ('{0} is not a valid url scheme, valid schemes are '
'{1}').format(scheme, _valid_schemes)
raise ValueError(msg)
else:
# something else happened: maybe a faulty connection
raise e
return clean_html(r)
def _build_doc(self):
"""
Raises
------
ValueError
* If a URL that lxml cannot parse is passed.
Exception
* Any other ``Exception`` thrown. For example, trying to parse a
URL that is syntactically correct on a machine with no internet
connection will fail.
See Also
--------
pandas.io.html._HtmlFrameParser._build_doc
"""
from lxml.html import parse, fromstring
from lxml.html.clean import clean_html
try:
# try to parse the input in the simplest way
r = parse(self.io)
except (UnicodeDecodeError, IOError) as e:
# if the input is a blob of html goop
if not _is_url(self.io):
r = fromstring(self.io)
else:
# not a url
scheme = urlparse.urlparse(self.io).scheme
if scheme not in _valid_schemes:
# lxml can't parse it
msg = ('{0} is not a valid url scheme, valid schemes are '
'{1}').format(scheme, _valid_schemes)
raise ValueError(msg)
else:
# something else happened: maybe a faulty connection
raise e
return clean_html(r)
def __init__(self, path_or_buf, encoding=None):
super(StataReader, self).__init__(encoding)
self.col_sizes = ()
self._has_string_data = False
self._missing_values = False
self._data_read = False
self._value_labels_read = False
if isinstance(path_or_buf, str) and _is_url(path_or_buf):
from urllib.request import urlopen
path_or_buf = urlopen(path_or_buf)
if py3compat.PY3: # pragma: no cover
if self._encoding:
errors = 'strict'
else:
errors = 'replace'
self._encoding = 'cp1252'
bytes = path_or_buf.read()
self.path_or_buf = StringIO(self._decode_bytes(bytes, errors))
elif type(path_or_buf) is str:
self.path_or_buf = open(path_or_buf, 'rb')
else:
self.path_or_buf = path_or_buf
self._read_header()
def __init__(self, path_or_buf, encoding=None):
super(StataReader, self).__init__(encoding)
self.col_sizes = ()
self._has_string_data = False
self._missing_values = False
self._data_read = False
self._value_labels_read = False
if isinstance(path_or_buf, str) and _is_url(path_or_buf):
from urllib.request import urlopen
path_or_buf = urlopen(path_or_buf)
if py3compat.PY3: # pragma: no cover
if self._encoding:
errors = 'strict'
else:
errors = 'replace'
self._encoding = 'cp1252'
bytes = path_or_buf.read()
self.path_or_buf = StringIO(self._decode_bytes(bytes, errors))
elif type(path_or_buf) is str:
self.path_or_buf = open(path_or_buf, 'rb')
else:
self.path_or_buf = path_or_buf
self._read_header()
