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EnvironmentVariables

Bash-like Global Substitution

   1 
   2 globals().update(os.environ)  # Import environment
   3 
   4 
   5 def replace_w_global_value(mo):
   6     key = mo.group(0)
   7     without_dollar = key[1:]
   8     return str(globals().get(without_dollar, key))
   9 
  10 
  11 def subs(input):
  12     """Perform Bash-like substitutions.
  13 
  14     Any "$FOO" in a string will be replaced with the value of FOO.
  15     If it's not defined, it stays as it was: "$FOO".
  16     """
  17     return re.sub('[$][A-Za-z_]+', replace_w_global_value, input)

Discussion

The only question I have is: Is there a way to make all assignments within the module, automatically call os.putenv?

So, intercept assignment with setattr or something, on the module.

I don't know how to get a handle to the current module, though.

-- LionKimbro 2005-12-16 20:37:07

EditText (last edited 2005-12-16 20:37:13 by LionKimbro)

DeleteCache (cached 2007-11-21 12:27:00)

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