def to_python(self, value):
if value is None:
return None
try:
return parse_size(value, assume_binary=self.assume_binary)
except ValueError:
raise exceptions.ValidationError(self.error_messages['invalid'])
def to_python(self, value):
if value is None:
return None
try:
return parse_size(value)
except ValueError:
raise exceptions.ValidationError(self.error_messages['invalid'])
def value_from_datadict(self, data, files, name):
"""
Given a dictionary of data and this widget's name, returns the value
of this widget. Returns None if it's not provided.
"""
value = super(FileSizeWidget, self).value_from_datadict(data, files, name)
if value not in EMPTY_VALUES:
try:
return parse_size(value)
except ValueError:
pass
return value
def value_from_datadict(self, data, files, name):
"""
Given a dictionary of data and this widget's name, returns the value
of this widget. Returns None if it's not provided.
"""
value = super(FileSizeWidget,
self).value_from_datadict(data, files, name)
if value not in EMPTY_VALUES:
try:
return parse_size(value)
except ValueError:
pass
return value
def parse_book_detail(self, response):
book = response.meta['book']
book['total_time'] = response.xpath('//dl[@class="product-details clearfix"]/dd[1]/text()').extract()[0]
zip_size_str = response.xpath('//dl[@class="product-details clearfix"]/dd[2]/text()').extract()[0]
book['zip_size'] = parse_size(zip_size_str)
book['zip_url'] = response.xpath('//dl[@class="listen-download clearfix"]/dd[1]/a/@href').extract()[0]
book['book_cover'] = response.xpath('//div[@class="book-page-book-cover"]/img/@src').extract()[0]
try:
book['description'] = response.xpath('//div[@class="description"]/text()').extract()[0]
except IndexError:
pass
django_book = book.save()
headers = [header.lower() for header in response.xpath('//table[@class="chapter-download"]/thead/tr/th/text()').extract()]
def get_h_index(header):
try:
headers.index(header)
except ValueError, e:
return None
def test_parse(self):
# Usual case
self.assertEqual(123, parse_size('123'))
self.assertEqual(123, parse_size('123B'))
self.assertEqual(123, parse_size('123 B'))
# Units
self.assertEqual(1 << 10, parse_size('1KB'))
self.assertEqual(1 << 20, parse_size('1MB'))
self.assertEqual(1 << 30, parse_size('1GB'))
self.assertEqual(1 << 40, parse_size('1TB'))
self.assertEqual(1 << 50, parse_size('1PB'))
self.assertEqual((1 << 10) * 0.5, parse_size('0.5KB'))
self.assertEqual((1 << 20) * 0.5, parse_size('0.5MB'))
self.assertEqual((1 << 30) * 0.5, parse_size('0.5GB'))
self.assertEqual((1 << 40) * 0.5, parse_size('0.5TB'))
self.assertEqual((1 << 50) * 0.5, parse_size('0.5PB'))
# Case and spaces
self.assertEqual(1 << 10, parse_size('1Kb'))
self.assertEqual(1 << 10, parse_size('1kB'))
self.assertEqual(1 << 10, parse_size('1kb'))
self.assertEqual(1 << 10, parse_size('1 kb'))
self.assertEqual(1 << 10, parse_size('1 kb'))
# Incorrect input
self.assertRaises(ValueError, parse_size, (''))
self.assertRaises(ValueError, parse_size, ('abc'))
self.assertRaises(ValueError, parse_size, ('12 HB'))
self.assertRaises(ValueError, parse_size, ('12 BB'))
self.assertRaises(ValueError, parse_size, ('12 BKB'))
self.assertRaises(ValueError, parse_size, ('12 K'))
# Already rendered
self.assertEqual(123, parse_size(123))
def to_internal_value(self, data):
"""Accept human-readable input."""
try:
return parse_size(data)
except ValueError:
return
