I have a dataframe which has list in one column that I want to convert into a simple string

```
    id          data_words_nostops
    26561364    [andrographolide, major, labdane, diterpenoid]
    26561979    [dgat, plays, critical, role, hepatic, triglyc]
    26562217    [despite, success, imatinib, inhibiting, bcr] 

```

DESIRED OUTPUT

```
id          data_words_nostops
26561364    andrographolide, major, labdane, diterpenoid
26561979    dgat, plays, critical, role, hepatic, triglyc
26562217    despite, success, imatinib, inhibiting, bcr

```