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from __future__ import print_function

import argparse

from six.moves import configparser

def build_argparser():

parser = argparse.ArgumentParser(

description='VMprof',

prog="vmprof"

)

parser.add_argument(

'program',

help='program'

)

parser.add_argument(

'args',

nargs=argparse.REMAINDER,

help='program arguments'

)

parser.add_argument(

'--config',

type=argparse.FileType('r'),

)

parser.add_argument(

'--period', '-p',

type=float,

default=0.001,

help='Sampling period (in microseconds)'

)

parser.add_argument(

'--web-auth',

help='Authtoken for your acount on the server, works only when --web is used'

)

parser.add_argument(

'--web-url',

metavar='url',

default='http://vmprof.com',

help='Provide URL instead of the default vmprof.com)'

)

output_mode_args = parser.add_mutually_exclusive_group()

output_mode_args.add_argument(

'--web',

action='store_true',

help='Upload profiling stats to a remote server (defaults to vmprof.com)'

)

output_mode_args.add_argument(

'--output', '-o',

metavar='file.prof',

type=argparse.FileType('w+b'),

help='Save profiling data to file'

)

return parser

def parse_args(argv):

parser = build_argparser()

args = parser.parse_args(argv)

if args.config:

ini_options = [

('period', float),

('web', str),

('web-auth', str),

('web-url', str),

('output', str)

]

ini_parser = IniParser(args.config)

for name, type in ini_options:

argname = name.replace("-", "_")

default = parser.get_default(argname)

current = getattr(args, argname, default)

if current == default:

value = ini_parser.get_option(name, type, default)

setattr(args, argname, value)

return args

class IniParser(object):

def __init__(self, f):

self.ini_parser = configparser.ConfigParser()

self.ini_parser.readfp(f)

def get_option(self, name, type, default=None):

if type == float:

try:

return self.ini_parser.getfloat('global', name)

except configparser.NoOptionError:

return default

elif type == bool:

try:

return self.ini_parser.getboolean('global', name)

except configparser.NoOptionError:

return default

try:

return self.ini_parser.get('global', name)

except configparser.NoOptionError:

return default

def show(stats):

p = stats.top_profile()

if not p:

print("no stats")

return

p.sort(key=lambda x: x[1], reverse=True)

top = p[0][1]

max_len = max([_namelen(e[0]) for e in p])

print(" vmprof output:")

print(" %: name:" + " " * (max_len - 3) + "location:")

for k, v in p:

v = "%.1f%%" % (float(v) / top * 100)

if v == '0.0%':

v = '<0.1%'

if k.startswith('py:'):

_, func_name, lineno, filename = k.split(":", 3)

lineno = int(lineno)

print(" %s %s %s:%d" % (v.ljust(7), func_name.ljust(max_len + 1), filename, lineno))

else:

print(" %s %s" % (v.ljust(7), k.ljust(max_len + 1)))

def _namelen(e):

if e.startswith('py:'):

return len(e.split(':')[1])

else:

return len(e)

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