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Threading in Python, Please check the script

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  Threading in Python, Please check the script Robert Clove <cloverobert@gmail.com> - 2015-01-14 11:52 +0530
    Re: Threading in Python, Please check the script sohcahtoa82@gmail.com - 2015-01-14 10:55 -0800

#83734 — Threading in Python, Please check the script

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Hi All,

I have made a script in which i have started two thread named thread 1 and
thread 2.
In thread 1 one function will run named func1 and in thread 2 function 2
will run named func 2.
Thread 1 will execute a command and wait for 60 seconds.
Thread 2 will run only till thread 1 is running .
Again after that the same process continues in while after a break of 80
Seconds.

I am a beginner in python.
Please suggest what all i have done wrong and how to correct it.


#!/usr/bin/python

import threading
import time
import subprocess
import datetime
import os
import thread

thread.start_new_thread( print_time, (None, None))
thread.start_new_thread( print_time1, (None, None))
command= "strace -o /root/Desktop/a.txt -c ./server"
final_dir = "/root/Desktop"
exitflag = 0
# Define a function for the thread
def print_time(*args):
    os.chdir(final_dir)
    print "IN first thread"
    proc = subprocess.Popen(command,shell=True,stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
    proc.wait(70)
    exitflag=1

def print_time1(*args):
    print "In second thread"
    global exitflag
    while exitflag:
        thread.exit()
        #proc =
subprocess.Popen(command1,shell=True,stdout=subprocess.PIPE,
sterr=subprocess.PIPE)



# Create two threads as follows
try:
    while (1):
        t1=threading.Thread(target=print_time)
        t1.start()
        t2=threading.Thread(target=print_time1)
        t2=start()
        time.sleep(80)
        z = t1.isAlive()
        z1 = t2.isAlive()
        if z:
            z.exit()
        if z1:
            z1.exit()
           threading.Thread(target=print_time1).start()
           threading.Thread(target=print_time1).start()
        print "In try"
except:
   print "Error: unable to start thread"

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#83778

On Tuesday, January 13, 2015 at 10:22:32 PM UTC-8, Robert Clove wrote:
> Hi All,
> 
> I have made a script in which i have started two thread named thread 1 and thread 2.
> In thread 1 one function will run named func1 and in thread 2 function 2 will run named func 2.
> Thread 1 will execute a command and wait for 60 seconds. 
> Thread 2 will run only till thread 1 is running .
> Again after that the same process continues in while after a break of 80 Seconds.
> 
> I am a beginner in python.
> Please suggest what all i have done wrong and how to correct it.
> 
> 
> #!/usr/bin/python
> 
> import threading
> import time
> import subprocess
> import datetime
> import os
> import thread
> 
> thread.start_new_thread( print_time, (None, None))
> thread.start_new_thread( print_time1, (None, None))
> command= "strace -o /root/Desktop/a.txt -c ./server"
> final_dir = "/root/Desktop"
> exitflag = 0
> # Define a function for the thread
> def print_time(*args):
>     os.chdir(final_dir)
>     print "IN first thread"
>     proc = subprocess.Popen(command,shell=True,stdout=subprocess.PIPE, stderr=subprocess.PIPE)
>     proc.wait(70)
>     exitflag=1
>    
> def print_time1(*args):
>     print "In second thread"
>     global exitflag
>     while exitflag:
>         thread.exit()
>         #proc = subprocess.Popen(command1,shell=True,stdout=subprocess.PIPE, sterr=subprocess.PIPE)
> 
> 
> 
> # Create two threads as follows
> try:
>     while (1):
>         t1=threading.Thread(target=print_time)
>         t1.start()
>         t2=threading.Thread(target=print_time1)
>         t2=start()
>         time.sleep(80)
>         z = t1.isAlive()
>         z1 = t2.isAlive()
>         if z:
>             z.exit()
>         if z1:
>             z1.exit()
>            threading.Thread(target=print_time1).start()
>            threading.Thread(target=print_time1).start()
>         print "In try"
> except:
>    print "Error: unable to start thread"
> 
>  

In addition to what others have said, it looks like you're designing your script to run as root.  This is a Very Bad Idea(tm) and has the potential to destroy your system if you make a minor mistake and end up blowing away vital system files.

If you want to be able to run the script anywhere but have the results saved in your home directory, then look into calling os.path.expanduser('~/Desktop') to write to the Desktop directory in your home directory.

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