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Python Bytes
Intermediate Python Topics
Conditional Variable Assignment

Topics beyond the basics of Python.

Conditional statements in Python

Handled with 'if' keyword.

variable = value if the conditional is met otherwise set to this value

If you have two environments, development and production:

dev = "dev"
prod = "prod"

script_arg = "dev"

if script_arg == prod:
db_env = prod
else:
db_env = dev

db_env = prod if script_arg == prod else dev

Example with True/False:
script_arg = True
db_env = prod if script_arg == True else dev

Example with testing the existence of something:
script_arg = None
db_env = prod if script_arg else dev

Useful for config files and also different switches and options for a script.

Should be used for relatively simple expressions so the line is still readable.