module ENV

Overview

ENV is a hash-like accessor for environment variables.

Example

# Set env var PORT to a default if not already set
ENV["PORT"] ||= "5000"
# Later use that env var.
puts ENV["PORT"].to_i

NOTE All keys and values are strings. You must take care to cast other types at runtime, e.g. integer port numbers.

Extended Modules

• Enumerable({String, String})

Defined in:

py2cr/env.cr

Class Method Summary

• .py_in?(key : String) : Bool

  Handles "key in os.environ" case

Class Method Detail