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Allow the caller to control whether read_env will recurse. #9

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Jan 25, 2018
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Allow the caller to control whether read_env will recurse. #9

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12 changes: 8 additions & 4 deletions environs.py
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Original file line number Diff line number Diff line change
Expand Up @@ -139,16 +139,20 @@ def __repr__(self):
__str__ = __repr__

@staticmethod
def read_env(path=None):
"""Read a .env file into os.environ. If .env is not found in the directory from
which this method is called, recurse up the directory tree until a .env file is found.
def read_env(path=None, recurse=True):
"""Read a .env file into os.environ.

If .env is not found in the directory from which this method is called,
the default behavior is to recurse up the directory tree until a .env
file is found. If you do not wish to recurse up the tree, you may pass
False as a second positional argument.
"""
# By default, start search from the same file this function is called
if path is None:
frame = inspect.currentframe().f_back
caller_dir = os.path.dirname(frame.f_code.co_filename)
path = os.path.join(os.path.abspath(caller_dir), '.env')
return _read_env(path=path)
return _read_env(path=path, recurse=recurse)

@contextlib.contextmanager
def prefixed(self, prefix):
Expand Down