Empty line under unix environment

Created by: datatravelgit

Hi team,

Issue

Under Unix, the user crontab leaves an empty line after each batch of jobs that are saved. Under Windows, a crontab destination file leaves an empty line at the end only .

How to reproduce this:

1. When using Crontab in a Windows OS (To test the output) 1.1) In this environment, if I start with a new empty file and insert a new job, the destination file contains an empty line at the end of the file:

Code:

crontab = CronTab()
...
crontab.write(destination),

Destination File (see 1 empty line after crontab job):

SHELL=/bin/bash
0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_

1.2) If I open the same file to add another line in the crontab Code:

crontab = CronTab(tabfile=destination)
...
crontab.write(destination),

Destination File (see 1 empty line after last crontab job):

SHELL=/bin/bash
0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_
0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_

2. When using Crontab in a Unix OS (Where the production code runs)

2.1) In this environment, if I start with a new empty user crontab, the destination contains an empty line at the end of the file: Code:

crontab = CronTab()
...
crontab.write(destination),

Destination (see 1 empty line after crontab job):

SHELL=/bin/bash
0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_

2.2) If I open the user crontab to add another line: Code:

crontab = CronTab(user=True)
...
crontab.write(user=True),

The destination contains blank spaces after each line:

SHELL=/bin/bash
0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_

0 9 * * 2,3,4,5,6 to_run.sh test 1 env=_ENV_ running_date=_JOB_DATE_

Versions used

• Python 3.6.4 (Under Unix and Windows)
• python_crontab 2.2.8 (Under Unix and Windows)
• Windows 7 Enterprice
• Unix: Red hat enterprise linux