[Python] How to replace text in a string column of a Pandas dataframe?

I have a column in my dataframe like this:

range
"(2,30)"
"(50,290)"
"(400,1000)"
...


and I want to replace the , comma with - dash. I'm currently using this method but nothing is changed.

org_info_exc['range'].replace(',', '-', inplace=True)


Can anybody help?

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