easy_env
Implement common operations over env vars such as reading booleans and integers.
Installation
pip install easy_envUsage
import os
import easy_env
# setup env vars
setup_vars = [
('int', '42'),
('float', '42.9'),
('bool', 'yes'),
('str', 'foo bar'),
('bytes', 'Zm9v'), # base64 encoded b'foo'
('list', '1,2,3'),
('list2', '4 5 6'),
]
for var, value in setup_vars:
os.environ[var] = value
# get var
assert easy_env.get_int('int') == 42
assert easy_env.get_float('float') == 42.9
assert easy_env.get_bool('bool') is True
assert easy_env.get_str('str') == 'foo bar'
assert easy_env.get_bytes('bytes') == b'foo'
assert easy_env.get_list('list') == ['1', '2', '3']
# get w/ default
assert easy_env.get_int('NEW_VAR', 5) == 5
# get w/o default
assert easy_env.get_int('NEW_VAR') is None
# get w/o default and raise exception
try:
easy_env.get_int('NEW_VAR', raise_error=True)
assert False
except KeyError:
assert True
# get list of integers
assert easy_env.get_list('list', item_factory=int) == [1, 2, 3]
# get list w/ another separator
assert easy_env.get_list('list2', separator=' ') == ['4', '5', '6']
# detect type based on type of default
assert easy_env.get('int', 1) == 42
assert easy_env.get('int') == '42'
assert easy_env.get('float', 1.0) == 42.9
assert easy_env.get('bool', False) is True
assert easy_env.get('bytes', b'') == b'foo'
assert easy_env.get('list2', default=[], separator=' ') == ['4', '5', '6']
# set int
easy_env.set_int('int_var', 42)
assert os.getenv('int_var') == '42'
# set float
easy_env.set_float('float_var', 42.0)
assert os.getenv('float_var') == '42.0'
# set bool
easy_env.set_bool('bool_var', True)
assert os.getenv('bool_var') == '1'
easy_env.set_bool('bool_var', False)
assert os.getenv('bool_var') == '0'
# set string
easy_env.set_str('str_var', 'foo bar')
assert os.getenv('str_var') == 'foo bar'
# set bytes
easy_env.set_bytes('bytes_var', b'foo')
assert os.getenv('bytes_var') == 'Zm9v'
# set list
easy_env.set_list('list_var', [1, 2, 3])
assert os.getenv('list_var') == '1,2,3'
easy_env.set_list('list_var', [1, 2, 3], separator=' ')
assert os.getenv('list_var') == '1 2 3'
easy_env.set_list('list_var', [1, 2, 3], serializer=lambda x: str(x - 1))
assert os.getenv('list_var') == '0,1,2'1 maintainer
Metadata
1 maintainer
Release files for easy-env 0.1.3
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