Question

I am new to python and I’m trying to create a program that creates a directory with todays date, create a sandbox into that directory and run the make file in the sandbox. I am having trouble getting the variables to be picked up in the os.path lines. The code is posted below:

#!/usr/bin/python  
import mks_function  
from mks_function import mks_create_sandbox  
import sys, os, time, datetime  
import os.path  

today = datetime.date.today()  # get today's date as a datetime type  

todaystr = today.isoformat()   # get string representation: YYYY-MM-DD  
                           # from a datetime type.  

if not os.path.exists('/home/build/test/sandboxes/'+todaystr):  
 os.mkdir(todaystr)  
else:  
 pass  

if not os.path.exists('/home/build/test/sandboxes/'+todaystr+'/new_sandbox/project.pj'):  
 mks_create_sandbox()  
else:  
 pass  

if os.path.exists('/home/build/test/sandboxes/'+todaystr+'/new_sandbox/Makefile'):  
 os.system("make >make_results.txt 2>&1")  

Any help would be appreciated,
Thanks

Answer 1

a couple of notes:

#!/usr/bin/env python  
# import mks_function .. you won't need this ...

from mks_function import mks_create_sandbox  
import os, datetime  

# import time, sys .. these aren't used in this snippet 
# import os.path .. just refer to os.path, since os is already imported

# get today's date as a datetime type  
todaystr = datetime.date.today().isoformat()  

# .. use os.path.join()
if not os.path.exists(os.path.join('/home/build/test/sandboxes/', todaystr)):  
    os.mkdir(os.path.join('/home/build/test/sandboxes/', todaystr))  
# .. 'else: pass' is unnecessary

if not os.path.exists(os.path.join(
    '/home/build/test/sandboxes/', todaystr, '/new_sandbox/project.pj')):  

    # i'm not seen, that the sandbox is created in the right directory here
    # maybe you should change the working directory via ..
    # os.chdir(os.path.join('/home/build/test/sandboxes/', todaystr))
    mks_create_sandbox()  

if os.path.exists(os.path.join(
    '/home/build/test/sandboxes/', todaystr, '/new_sandbox/Makefile')):  

    # .. change to the right directory
    os.chdir(os.path.join(
        '/home/build/test/sandboxes/', todaystr, '/new_sandbox/'))

    os.system("make > make_results.txt 2>&1")