String Replacement

[Peter Pearson]

On Mon, 23 Jan 2017 13:23:38 -0800 (PST), subhabangalore at gmail.com wrote:
> I have a string like 
>
> "Trump is $ the president of USA % Obama was $ the president
> of USA % Putin is $ the premier of Russia%"
>
> Here, I want to extract the portions from $...%, which would be
>
> "the president of USA", 
> "the president of USA", 
> "the premier of Russia"
[snip]

This might get you started:

$ cat temp.py
import re

x = ("Trump is $ the president of USA % Obama was $ the pres"
     "ident of USA % Putin is $ the premier of Russia%")

for y in re.finditer(r"(?P<first>[^\$]*)\$(?P<second>[^%]*)%", x):
    print("'{0}' -- '{1}'".format(y.group("first"), y.group("second")))

$ python3 temp.py
'Trump is ' -- ' the president of USA '
' Obama was ' -- ' the president of USA '
' Putin is ' -- ' the premier of Russia'



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