Pass variable by reference
Satish Muthali
satish.muthali at gmail.com
Mon May 5 20:39:44 EDT 2014
Hello experts,
I have a burning question on how to pass variable by reference in Python. I understand that the data type has to be mutable.
For example, here’s the issue I am running in to:
I am trying to extract the PostgreSQL DB version for example:
pgVer = [s.split() for s in os.popen("psql --version").read().splitlines()]
print pgVer[0]
for i, var in enumerate(pgVer[0]):
if i == len(pgVer[0]) - 1:
pgversion = var
I would now like to pass ‘pgversion’ (where the value of pgversion is 9.3.4) by reference, for example:
I want to nuke /var/lib/postgresql/9.3.4/main/data , however programatically I want it to be as: /var/lib/postgresql/<value of pgversion>/main/data
Any help is appreciated.
Thanks
Satish
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