Hi,

I'm a newbie. I read the tutorials a few times but I still can't figure out 
how to do this.

Let say I have a text file like this:

# bug fix for display formats to avoid run time errors
pandas.set_option('display.float_format', lambda x:'%.2f'%x)

data = pandas.read_csv('gapminder.csv')

# convert to numeric format
data['internetuserate'] = pandas.to_numeric(data['internetuserate'], errors=
'coerce')
data['urbanrate'] = pandas.to_numeric(data['urbanrate'], errors='coerce')
data['femaleemployrate'] = pandas.to_numeric(data['femaleemployrate'], 
errors='coerce')


I need to substitute pandas with pd and numpy with np etc. (step 1)

Can I create a node and put the code into it? (step 2)

And then create another node where I write a script to automate a few 
repetitive substitutions? (step 3)

If so, how do I get step 3 and below going?
Can I read the body of the text node in to a variable and then just write 
python code to deal with it?
Then I have to output it to the console, a new node or file, right?

Any hint is appreciated. Thanks!

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