Skip to content

Readin env

Read in a environment variables.

readin_env(path='.', name='.env', overwrite=False)

Set environment variables from a .env file.

Parameters:

Name Type Description Default
path str

Path to a .env file, or to a directory containing such a file. By default, this will fall back on ~ then ~/Documents.

 '.'
name str

Name of the file, when path points to a directory. By default, this will fall back on .Renviron.

 '.env'
overwrite bool

If True, overwrites existing environment variables with the same name as those in the .env file.

 False

Returns:

Type Description
None

If a file is found, it will add contents to os.environ.
Source code in src\receptiviti\readin_env.py 
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
def readin_env(path=".", name=".env", overwrite=False) -> None:
    """
    Set environment variables from a .env file.

    Args:
      path (str): Path to a .env file, or to a directory containing such a file.
        By default, this will fall back on `~` then `~/Documents`.
      name (str): Name of the file, when `path` points to a directory.
        By default, this will fall back on `.Renviron`.
      overwrite (bool): If `True`, overwrites existing environment variables with
        the same name as those in the .env file.

    Returns:
      If a file is found, it will add contents to `os.environ`.
    """
    path = os.path.expanduser(path)
    envpath = path if os.path.isfile(path) else path + "/" + name
    if os.path.isfile(envpath):
        ql = re.compile("^['\"]|['\"\\s]+$")
        with open(envpath, encoding="utf-8") as file:
            for line in file:
                entry = line.split("=", 1)
                if len(entry) == 2 and (overwrite or os.getenv(entry[0]) is None):
                    os.environ[entry[0]] = ql.sub("", entry[1])
    elif name != ".Renviron":
        readin_env(path, ".Renviron", overwrite)
    elif os.path.isfile(os.path.expanduser("~/") + name):
        readin_env("~", name, overwrite)
    elif os.path.isfile(os.path.expanduser("~/Documents/") + name):
        readin_env("~/Documents", name, overwrite)