[英]run python script in the background
I wrote a Python script to run several NS-3 simulations with different seeds and different node counts. 我编写了一个Python脚本来运行几个具有不同种子和不同节点数的NS-3模拟。 My script calls
./waf --run=<scenario_name>
then executes 10 seeds, change node count and execute 10 more seeds, and so on. 我的脚本调用
./waf --run=<scenario_name>
然后执行10个种子,更改节点数并再执行10个种子,依此类推。
The problem is that after I call my script, I ask the user for an input (which scenario to run). 问题是,在我调用脚本后,我要求用户输入(要运行的场景)。 Because of that
raw_input
call, I couldn't use nohup myScript.py &
. 由于
raw_input
调用,我无法使用nohup myScript.py &
。 I also tried CTRL + Z
, bg
, and disown
. 我也尝试过
CTRL + Z
, bg
和disown
。 But that didn't work either. 但这也不起作用。
Here's my script: 这是我的脚本:
#!/usr/bin/python
import subprocess
from pathlib import Path
import glob
scenario = raw_input("Type scenario (foo or bar): ")
if scenario == 'foo':
wafString = './waf --run "scratch/test-foo --nodeCount='
elif scenario == 'bar':
wafString = './waf --run "scratch/test-bar --nodeCount='
else:
print ("Wrong input!")
ns3Global = 'NS_GLOBAL_VALUE="RngRun='
numbers = [25, 50, 100] # number of nodes
for nodeCount in numbers:
for rngRun in range(1,11):
myArgument = ns3Global + str(rngRun) + '" ' + wafString + str(nodeCount) + '" '
print "*** Running experiment with " + str(nodeCount) + \
" nodes and random seed " + str(rngRun) + "\n"
subprocess.call(myArgument, shell=True)
Any help will be much appreciated. 任何帮助都感激不尽。
Use subprocess.Popen(...
instead of subprocess.call(
使用
subprocess.Popen(...
而不是subprocess.call(
p = subprocess.Popen(myArgument)
Avoid to use shell=True
if ns3Global
don't need it. 如果
ns3Global
不需要,请避免使用shell=True
。
Python 3.6 » Documentation » 17.5.
Python 3.6»文档» 17.5。 subprocess — Subprocess
subprocess - 子流程
Execute a child program in a new process.在新进程中执行子程序。
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