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#!/usr/bin/env python
# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
A clone of 'ps -aux' on UNIX.
$ python examples/ps.py
...
"""
import datetime
import os
import time
import psutil
def main():
today_day = datetime.date.today()
templ = "%-10s %5s %4s %4s %7s %7s %-13s %5s %7s %s"
attrs = ['pid', 'cpu_percent', 'memory_percent', 'name', 'cpu_times',
'create_time', 'memory_info']
if os.name == 'posix':
attrs.append('uids')
attrs.append('terminal')
print(templ % ("USER", "PID", "%CPU", "%MEM", "VSZ", "RSS", "TTY",
"START", "TIME", "COMMAND"))
for p in psutil.process_iter():
try:
pinfo = p.as_dict(attrs, ad_value='')
except psutil.NoSuchProcess:
pass
else:
if pinfo['create_time']:
ctime = datetime.datetime.fromtimestamp(pinfo['create_time'])
if ctime.date() == today_day:
ctime = ctime.strftime("%H:%M")
else:
ctime = ctime.strftime("%b%d")
else:
ctime = ''
cputime = time.strftime("%M:%S",
time.localtime(sum(pinfo['cpu_times'])))
try:
user = p.username()
except KeyError:
if os.name == 'posix':
if pinfo['uids']:
user = str(pinfo['uids'].real)
else:
user = ''
else:
raise
except psutil.Error:
user = ''
if os.name == 'nt' and '\\' in user:
user = user.split('\\')[1]
vms = pinfo['memory_info'] and \
int(pinfo['memory_info'].vms / 1024) or '?'
rss = pinfo['memory_info'] and \
int(pinfo['memory_info'].rss / 1024) or '?'
memp = pinfo['memory_percent'] and \
round(pinfo['memory_percent'], 1) or '?'
print(templ % (
user[:10],
pinfo['pid'],
pinfo['cpu_percent'],
memp,
vms,
rss,
pinfo.get('terminal', '') or '?',
ctime,
cputime,
pinfo['name'].strip() or '?'))
if __name__ == '__main__':
main()
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