1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
import sys, copy
from itertools import *
from StringIO import StringIO
import benchbase
from benchbase import with_attributes, with_text, onlylib, serialized, children
############################################################
# Benchmarks
############################################################
class XPathBenchMark(benchbase.TreeBenchMark):
@onlylib('lxe')
@children
def bench_xpath_class(self, children):
xpath = self.etree.XPath("./*[0]")
for child in children:
xpath(child)
@onlylib('lxe')
@children
def bench_xpath_class_repeat(self, children):
for child in children:
xpath = self.etree.XPath("./*[0]")
xpath(child)
@onlylib('lxe')
def bench_xpath_element(self, root):
xpath = self.etree.XPathElementEvaluator(root)
for child in root:
xpath.evaluate("./*[0]")
@onlylib('lxe')
@children
def bench_xpath_method(self, children):
for child in children:
child.xpath("./*[0]")
@onlylib('lxe')
@children
def bench_xpath_old_extensions(self, children):
def return_child(_, elements):
if elements:
return elements[0][0]
else:
return ()
extensions = {("test", "child") : return_child}
xpath = self.etree.XPath("t:child(.)", namespaces={"test":"t"},
extensions=extensions)
for child in children:
xpath(child)
@onlylib('lxe')
@children
def bench_xpath_extensions(self, children):
def return_child(_, elements):
if elements:
return elements[0][0]
else:
return ()
self.etree.FunctionNamespace("testns")["t"] = return_child
try:
xpath = self.etree.XPath("test:t(.)", namespaces={"test":"testns"})
for child in children:
xpath(child)
finally:
del self.etree.FunctionNamespace("testns")["t"]
if __name__ == '__main__':
benchbase.main(XPathBenchMark)
|
