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Gwenaël Samain
cython
Commits
c3e04d0f
Commit
c3e04d0f
authored
Dec 31, 2014
by
Robert Bradshaw
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Line profiler testing.
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931ca4d5
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c3e04d0f
PYTHON setup.py build_ext --inplace
PYTHON test_profile.py
######## setup.py ###########
from distutils.extension import Extension
from distutils.core import setup
from Cython.Build import cythonize
from Cython.Compiler.Options import directive_defaults
directive_defaults['linetrace'] = True
directive_defaults['binding'] = True
extensions = [
Extension("collatz", ["collatz.pyx"], define_macros=[('CYTHON_TRACE', '1')])
]
setup(
ext_modules = cythonize(extensions)
)
######## test_profile.py ###########
from collatz import collatz
try:
import line_profiler
except ImportError:
print "No line profiler, skipping test."
profile = line_profiler.LineProfiler(collatz)
profile.runcall(collatz, 19)
profile.print_stats()
stats = profile.get_stats()
assert len(stats.timings) > 0, "No profile stats."
for key, timings in stats.timings.items():
if key[-1] == 'collatz':
assert len(timings) > 0
break
else:
raise ValueError, "No stats for collatz."
######## collatz.pyx ###########
def collatz(n):
while n > 1:
if n % 2 == 0:
n //= 2
else:
n = 3*n+1
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