Cole Cole - 1 year ago 596
Python Question

Pycharm: set environment variable for run Task

I have moved my

value out of my settings file, and it gets set when I load my virtualenv. I can confirm the value is present from
python shell

When I run the Django Console,
is missing, as it should. So in preferences, I go to Console>Django Console and load
and the appropriate value. I go back into the Django Console, and
is there.

As expected, I cannot yet run a Task because it has yet to find the
. So I go into Run>Edit Configurations to add
into Django server and Django Tests, and into the project server. Restart Pycharm, confirm keys.

When I run a Task, such as
, I still get
KeyError: 'SECRET_KEY'.

Where do I put this key?

Answer Source

Because Pycharm is not launching from a terminal your environment will not loaded. In short any GUI program will not inherit the SHELL variables. See this for reasons (assuming a Mac).

However there are several basic solutions to this problem. As @user3228589 posted you can set this up as a variable within PyCharm. This has several pros and cons. I personally don't like this approach because it's not a single source. To fix this I use a small function at the top of my file which looks up the variable inside a local .env file. I put all of my "private" stuff in there. I also can reference this in my virtualenv.

Here is what it looks like.


def get_env_variable(var_name, default=False):
    Get the environment variable or return exception
    :param var_name: Environment Variable to lookup
        return os.environ[var_name]
    except KeyError:
        import StringIO
        import ConfigParser
        env_file = os.environ.get('PROJECT_ENV_FILE', SITE_ROOT + "/.env")
            config = StringIO.StringIO()
  , os.SEEK_SET)
            cp = ConfigParser.ConfigParser()
            value = dict(cp.items('DATA'))[var_name.lower()]
            if value.startswith('"') and value.endswith('"'):
                value = value[1:-1]
            elif value.startswith("'") and value.endswith("'"):
                value = value[1:-1]
            os.environ.setdefault(var_name, value)
            return value
        except (KeyError, IOError):
            if default is not False:
                return default
            from django.core.exceptions import ImproperlyConfigured
            error_msg = "Either set the env variable '{var}' or place it in your " \
                        "{env_file} file as '{var} = VALUE'"
            raise ImproperlyConfigured(error_msg.format(var=var_name, env_file=env_file))

# Make this unique, and don't share it with anybody.
SECRET_KEY = get_env_variable('SECRET_KEY')

Then the env file looks like this..

# This should normally be placed in the ${SITE_ROOT}/.env

And finally your virtualenv/bin/postactivate can source this file. You could go further and export the variables as described here if you'd like but since settings file directly call the .env there isn't really a need.

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