How to read multiple lines in a template and substitute values?

I have a piece of standard text having multiple lines and some format like below:

owner: oracle
date_conditions: 1
    timezone: US/Eastern
    std_out_file: "/app/local/job.log"
    machine: rachost

I want to use this above text with machine and timezone being changed as per the need. How can I use python to define this is a template and substitute various values? I came across the substitution option in string.Template. But this seems to be working with a single line only.

Solution

The string.Template class can handle strings consisting of multiple lines.

For example:

from string import Template

template = Template('''\
owner: oracle
date_conditions: 1
    timezone: $tz
    std_out_file: "/app/local/job.log"
    machine: $mach
''')

result = template.substitute(tz='US/Pacific', mach='foobar')
print(result, end='')

Prints:

owner: oracle
date_conditions: 1
    timezone: US/Pacific
    std_out_file: "/app/local/job.log"
    machine: foobar