unix - Update Python Variables via Shell Script -

i have shell script executes 2 python scripts in order. after shell script has executes, need manually go python script , update 2 variables. i'm hoping automate portion in shell script, not sure start.

basically, i'm wondering if can pass (and increment on each run) shell variables python script.

shell

#!/bin/sh  echo "download data" python /download.py  wait  echo "process data" python /process.py 

python download

import downloadfunction downloadfunction.donwload('2014-03-28') 

python process

import processdata processdata.process(data) 

essentially, want increment date via shell script let's 5 times.

so in python script define date variable.

python download

import downloadfunction date = '2014-03-28' downloadfunction.donwload(date) 

then each time shell script runs download.py , process.py, want add day date - let's 5 days. i'm not sure start on this.

you want pass date script argument, not edit hard-coded value.

in download.py:

import downloadfunction date = sys.argv[1] downloadfunction.donwload(date) 

then in shell script, like

#!/bin/sh  echo "download data" d in 2014-03-28 2014-03-29 2014-03-30 2014-03-31 2014-04-01;     python /download.py "$d" done  # no need call wait here  echo "process data" python /process.py